diff --git a/web/assets/js/langs.js b/web/assets/js/langs.js
index 823160ad..8681761c 100644
--- a/web/assets/js/langs.js
+++ b/web/assets/js/langs.js
@@ -62,20 +62,20 @@ const supportLangs = [
 ];
 
 function getLang() {
-	let lang = getCookie("lang");
+	let lang = CookieManager.getCookie("lang");
 
 	if (!lang) {
 		if (window.navigator) {
 			lang = window.navigator.language || window.navigator.userLanguage;
 
 			if (isSupportLang(lang)) {
-				setCookie("lang", lang, 150);
+				CookieManager.setCookie("lang", lang, 150);
 			} else {
-				setCookie("lang", "en-US", 150);
+				CookieManager.setCookie("lang", "en-US", 150);
 				window.location.reload();
 			}
 		} else {
-			setCookie("lang", "en-US", 150);
+			CookieManager.setCookie("lang", "en-US", 150);
 			window.location.reload();
 		}
 	}
@@ -88,7 +88,7 @@ function setLang(lang) {
 		lang = "en-US";
 	}
 
-	setCookie("lang", lang, 150);
+	CookieManager.setCookie("lang", lang, 150);
 	window.location.reload();
 }
 
diff --git a/web/assets/js/model/dbinbound.js b/web/assets/js/model/dbinbound.js
index aeae1a75..45301ddd 100644
--- a/web/assets/js/model/dbinbound.js
+++ b/web/assets/js/model/dbinbound.js
@@ -25,11 +25,11 @@ class DBInbound {
     }
 
     get totalGB() {
-        return toFixed(this.total / ONE_GB, 2);
+        return NumberFormatter.toFixed(this.total / SizeFormatter.ONE_GB, 2);
     }
 
     set totalGB(gb) {
-        this.total = toFixed(gb * ONE_GB, 0);
+        this.total = NumberFormatter.toFixed(gb * SizeFormatter.ONE_GB, 0);
     }
 
     get isVMess() {
diff --git a/web/assets/js/model/inbound.js b/web/assets/js/model/inbound.js
index 49fc8a7b..5c3235e1 100644
--- a/web/assets/js/model/inbound.js
+++ b/web/assets/js/model/inbound.js
@@ -1837,11 +1837,11 @@ Inbound.VmessSettings.VMESS = class extends XrayCommonClass {
         }
     }
     get _totalGB() {
-        return toFixed(this.totalGB / ONE_GB, 2);
+        return NumberFormatter.toFixed(this.totalGB / SizeFormatter.ONE_GB, 2);
     }
 
     set _totalGB(gb) {
-        this.totalGB = toFixed(gb * ONE_GB, 0);
+        this.totalGB = NumberFormatter.toFixed(gb * SizeFormatter.ONE_GB, 0);
     }
 
 };
@@ -1947,11 +1947,11 @@ Inbound.VLESSSettings.VLESS = class extends XrayCommonClass {
         }
     }
     get _totalGB() {
-        return toFixed(this.totalGB / ONE_GB, 2);
+        return NumberFormatter.toFixed(this.totalGB / SizeFormatter.ONE_GB, 2);
     }
 
     set _totalGB(gb) {
-        this.totalGB = toFixed(gb * ONE_GB, 0);
+        this.totalGB = NumberFormatter.toFixed(gb * SizeFormatter.ONE_GB, 0);
     }
 };
 Inbound.VLESSSettings.Fallback = class extends XrayCommonClass {
@@ -2099,11 +2099,11 @@ Inbound.TrojanSettings.Trojan = class extends XrayCommonClass {
         }
     }
     get _totalGB() {
-        return toFixed(this.totalGB / ONE_GB, 2);
+        return NumberFormatter.toFixed(this.totalGB / SizeFormatter.ONE_GB, 2);
     }
 
     set _totalGB(gb) {
-        this.totalGB = toFixed(gb * ONE_GB, 0);
+        this.totalGB = NumberFormatter.toFixed(gb * SizeFormatter.ONE_GB, 0);
     }
 
 };
@@ -2263,11 +2263,11 @@ Inbound.ShadowsocksSettings.Shadowsocks = class extends XrayCommonClass {
         }
     }
     get _totalGB() {
-        return toFixed(this.totalGB / ONE_GB, 2);
+        return NumberFormatter.toFixed(this.totalGB / SizeFormatter.ONE_GB, 2);
     }
 
     set _totalGB(gb) {
-        this.totalGB = toFixed(gb * ONE_GB, 0);
+        this.totalGB = NumberFormatter.toFixed(gb * SizeFormatter.ONE_GB, 0);
     }
 
 };
diff --git a/web/assets/js/util/common.js b/web/assets/js/util/common.js
deleted file mode 100644
index 9ad2e01f..00000000
--- a/web/assets/js/util/common.js
+++ /dev/null
@@ -1,183 +0,0 @@
-const ONE_KB = 1024;
-const ONE_MB = ONE_KB * 1024;
-const ONE_GB = ONE_MB * 1024;
-const ONE_TB = ONE_GB * 1024;
-const ONE_PB = ONE_TB * 1024;
-
-function sizeFormat(size) {
-    if (size <= 0) return "0 B";
-
-    if (size < ONE_KB) {
-        return size.toFixed(0) + " B";
-    } else if (size < ONE_MB) {
-        return (size / ONE_KB).toFixed(2) + " KB";
-    } else if (size < ONE_GB) {
-        return (size / ONE_MB).toFixed(2) + " MB";
-    } else if (size < ONE_TB) {
-        return (size / ONE_GB).toFixed(2) + " GB";
-    } else if (size < ONE_PB) {
-        return (size / ONE_TB).toFixed(2) + " TB";
-    } else {
-        return (size / ONE_PB).toFixed(2) + " PB";
-    }
-}
-
-function cpuSpeedFormat(speed) {
-    if (speed > 1000) {
-        const GHz = speed / 1000;
-        return GHz.toFixed(2) + " GHz";
-    } else {
-        return speed.toFixed(2) + " MHz";
-    }
-}
-
-function cpuCoreFormat(cores) {
-    if (cores === 1) {
-        return "1 Core";
-    } else {
-        return cores + " Cores";
-    }
-}
-
-function formatSecond(second) {
-    if (second < 60) {
-        return second.toFixed(0) + 's';
-    } else if (second < 3600) {
-        return (second / 60).toFixed(0) + 'm';
-    } else if (second < 3600 * 24) {
-        return (second / 3600).toFixed(0) + 'h';
-    } else {
-        day = Math.floor(second / 3600 / 24);
-        remain = ((second / 3600) - (day * 24)).toFixed(0);
-        return day + 'd' + (remain > 0 ? ' ' + remain + 'h' : '');
-    }
-}
-
-function addZero(num) {
-    if (num < 10) {
-        return "0" + num;
-    } else {
-        return num;
-    }
-}
-
-function toFixed(num, n) {
-    n = Math.pow(10, n);
-    return Math.floor(num * n) / n;
-}
-
-function debounce(fn, delay) {
-    var timeoutID = null;
-    return function () {
-        clearTimeout(timeoutID);
-        var args = arguments;
-        var that = this;
-        timeoutID = setTimeout(function () {
-            fn.apply(that, args);
-        }, delay);
-    };
-}
-
-function getCookie(cname) {
-    let name = cname + '=';
-    let ca = document.cookie.split(';');
-    for (let i = 0; i < ca.length; i++) {
-        let c = ca[i];
-        while (c.charAt(0) == ' ') {
-            c = c.substring(1);
-        }
-        if (c.indexOf(name) == 0) {
-            // decode cookie value only
-            return decodeURIComponent(c.substring(name.length, c.length));
-        }
-    }
-    return '';
-}
-
-
-function setCookie(cname, cvalue, exdays) {
-    const d = new Date();
-    d.setTime(d.getTime() + exdays * 24 * 60 * 60 * 1000);
-    let expires = 'expires=' + d.toUTCString();
-    // encode cookie value
-    document.cookie = cname + '=' + encodeURIComponent(cvalue) + ';' + expires + ';path=/';
-}
-
-function usageColor(data, threshold, total) {
-    switch (true) {
-        case data === null:
-            return "purple";
-        case total < 0:
-            return "green";
-        case total == 0:
-            return "purple";
-        case data < total - threshold:
-            return "green";
-        case data < total:
-            return "orange";
-        default:
-            return "red";
-    }
-}
-
-function clientUsageColor(clientStats, trafficDiff) {
-    switch (true) {
-        case !clientStats || clientStats.total == 0:
-            return "#7a316f"; // purple
-        case clientStats.up + clientStats.down < clientStats.total - trafficDiff:
-            return "#008771"; // Green
-        case clientStats.up + clientStats.down < clientStats.total:
-            return "#f37b24"; // Orange
-        default:
-            return "#cf3c3c"; // Red
-    }
-}
-
-function userExpiryColor(threshold, client, isDark = false) {
-    if (!client.enable) {
-        return isDark ? '#2c3950' : '#bcbcbc';
-    }
-    now = new Date().getTime(),
-        expiry = client.expiryTime;
-    switch (true) {
-        case expiry === null:
-            return "#7a316f"; // purple
-        case expiry < 0:
-            return "#008771"; // Green
-        case expiry == 0:
-            return "#7a316f"; // purple
-        case now < expiry - threshold:
-            return "#008771"; // Green
-        case now < expiry:
-            return "#f37b24"; // Orange
-        default:
-            return "#cf3c3c"; // Red
-    }
-}
-
-function doAllItemsExist(array1, array2) {
-    for (let i = 0; i < array1.length; i++) {
-        if (!array2.includes(array1[i])) {
-            return false;
-        }
-    }
-    return true;
-}
-
-function buildURL({ host, port, isTLS, base, path }) {
-    if (!host || host.length === 0) host = window.location.hostname;
-    if (!port || port.length === 0) port = window.location.port;
-
-    if (isTLS === undefined) isTLS = window.location.protocol === "https:";
-
-    const protocol = isTLS ? "https:" : "http:";
-
-    port = String(port);
-    if (port === "" || (isTLS && port === "443") || (!isTLS && port === "80")) {
-        port = "";
-    } else {
-        port = `:${port}`;
-    }
-
-    return `${protocol}//${host}${port}${base}${path}`;
-}
diff --git a/web/assets/js/util/date-util.js b/web/assets/js/util/date-util.js
index 50efd6fe..9b4b0f81 100644
--- a/web/assets/js/util/date-util.js
+++ b/web/assets/js/util/date-util.js
@@ -108,14 +108,14 @@ Date.prototype.setMaxTime = function () {
  * Formatting date
  */
 Date.prototype.formatDate = function () {
-    return this.getFullYear() + "-" + addZero(this.getMonth() + 1) + "-" + addZero(this.getDate());
+    return this.getFullYear() + "-" + NumberFormatter.addZero(this.getMonth() + 1) + "-" + NumberFormatter.addZero(this.getDate());
 };
 
 /**
  * Format time
  */
 Date.prototype.formatTime = function () {
-    return addZero(this.getHours()) + ":" + addZero(this.getMinutes()) + ":" + addZero(this.getSeconds());
+    return NumberFormatter.addZero(this.getHours()) + ":" + NumberFormatter.addZero(this.getMinutes()) + ":" + NumberFormatter.addZero(this.getSeconds());
 };
 
 /**
diff --git a/web/assets/js/util/utils.js b/web/assets/js/util/index.js
similarity index 76%
rename from web/assets/js/util/utils.js
rename to web/assets/js/util/index.js
index ab7c977a..8a6a4703 100644
--- a/web/assets/js/util/utils.js
+++ b/web/assets/js/util/index.js
@@ -527,4 +527,146 @@ class Base64 {
     static decode(content = "") {
         return window.atob(content)
     }
+}
+
+class SizeFormatter {
+    static ONE_KB = 1024;
+    static ONE_MB = this.ONE_KB * 1024;
+    static ONE_GB = this.ONE_MB * 1024;
+    static ONE_TB = this.ONE_GB * 1024;
+    static ONE_PB = this.ONE_TB * 1024;
+
+    static sizeFormat(size) {
+        if (size <= 0) return "0 B";
+        if (size < this.ONE_KB) return size.toFixed(0) + " B";
+        if (size < this.ONE_MB) return (size / this.ONE_KB).toFixed(2) + " KB";
+        if (size < this.ONE_GB) return (size / this.ONE_MB).toFixed(2) + " MB";
+        if (size < this.ONE_TB) return (size / this.ONE_GB).toFixed(2) + " GB";
+        if (size < this.ONE_PB) return (size / this.ONE_TB).toFixed(2) + " TB";
+        return (size / this.ONE_PB).toFixed(2) + " PB";
+    }
+}
+
+class CPUFormatter {
+    static cpuSpeedFormat(speed) {
+        return speed > 1000 ? (speed / 1000).toFixed(2) + " GHz" : speed.toFixed(2) + " MHz";
+    }
+    
+    static cpuCoreFormat(cores) {
+        return cores === 1 ? "1 Core" : cores + " Cores";
+    }
+}
+
+class TimeFormatter {
+    static formatSecond(second) {
+        if (second < 60) return second.toFixed(0) + 's';
+        if (second < 3600) return (second / 60).toFixed(0) + 'm';
+        if (second < 3600 * 24) return (second / 3600).toFixed(0) + 'h';
+        let day = Math.floor(second / 3600 / 24);
+        let remain = ((second / 3600) - (day * 24)).toFixed(0);
+        return day + 'd' + (remain > 0 ? ' ' + remain + 'h' : '');
+    }
+}
+
+class NumberFormatter {
+    static addZero(num) {
+        return num < 10 ? "0" + num : num;
+    }
+    
+    static toFixed(num, n) {
+        n = Math.pow(10, n);
+        return Math.floor(num * n) / n;
+    }
+}
+
+class Utils {
+    static debounce(fn, delay) {
+        let timeoutID = null;
+        return function () {
+            clearTimeout(timeoutID);
+            let args = arguments;
+            let that = this;
+            timeoutID = setTimeout(() => fn.apply(that, args), delay);
+        };
+    }
+}
+
+class CookieManager {
+    static getCookie(cname) {
+        let name = cname + '=';
+        let ca = document.cookie.split(';');
+        for (let c of ca) {
+            c = c.trim();
+            if (c.indexOf(name) === 0) {
+                return decodeURIComponent(c.substring(name.length, c.length));
+            }
+        }
+        return '';
+    }
+    
+    static setCookie(cname, cvalue, exdays) {
+        const d = new Date();
+        d.setTime(d.getTime() + exdays * 24 * 60 * 60 * 1000);
+        let expires = 'expires=' + d.toUTCString();
+        document.cookie = cname + '=' + encodeURIComponent(cvalue) + ';' + expires + ';path=/';
+    }
+}
+
+class ColorUtils {
+    static usageColor(data, threshold, total) {
+        switch (true) {
+            case data === null: return "purple";
+            case total < 0: return "green";
+            case total == 0: return "purple";
+            case data < total - threshold: return "green";
+            case data < total: return "orange";
+            default: return "red";
+        }
+    }
+    
+    static clientUsageColor(clientStats, trafficDiff) {
+        switch (true) {
+            case !clientStats || clientStats.total == 0: return "#7a316f";
+            case clientStats.up + clientStats.down < clientStats.total - trafficDiff: return "#008771";
+            case clientStats.up + clientStats.down < clientStats.total: return "#f37b24";
+            default: return "#cf3c3c";
+        }
+    }
+    
+    static userExpiryColor(threshold, client, isDark = false) {
+        if (!client.enable) return isDark ? '#2c3950' : '#bcbcbc';
+        let now = new Date().getTime(), expiry = client.expiryTime;
+        switch (true) {
+            case expiry === null: return "#7a316f";
+            case expiry < 0: return "#008771";
+            case expiry == 0: return "#7a316f";
+            case now < expiry - threshold: return "#008771";
+            case now < expiry: return "#f37b24";
+            default: return "#cf3c3c";
+        }
+    }
+}
+
+class ArrayUtils {
+    static doAllItemsExist(array1, array2) {
+        return array1.every(item => array2.includes(item));
+    }
+}
+
+class URLBuilder {
+    static buildURL({ host, port, isTLS, base, path }) {
+        if (!host || host.length === 0) host = window.location.hostname;
+        if (!port || port.length === 0) port = window.location.port;
+        if (isTLS === undefined) isTLS = window.location.protocol === "https:";
+        
+        const protocol = isTLS ? "https:" : "http:";
+        port = String(port);
+        if (port === "" || (isTLS && port === "443") || (!isTLS && port === "80")) {
+            port = "";
+        } else {
+            port = `:${port}`;
+        }
+        
+        return `${protocol}//${host}${port}${base}${path}`;
+    }
 }
\ No newline at end of file
diff --git a/web/html/common/js.html b/web/html/common/js.html
index 301b1df7..2d93935f 100644
--- a/web/html/common/js.html
+++ b/web/html/common/js.html
@@ -5,9 +5,8 @@
 <script src="{{ .base_path }}assets/axios/axios.min.js?{{ .cur_ver }}"></script>
 <script src="{{ .base_path }}assets/qs/qs.min.js"></script>
 <script src="{{ .base_path }}assets/js/axios-init.js?{{ .cur_ver }}"></script>
-<script src="{{ .base_path }}assets/js/util/common.js?{{ .cur_ver }}"></script>
 <script src="{{ .base_path }}assets/js/util/date-util.js?{{ .cur_ver }}"></script>
-<script src="{{ .base_path }}assets/js/util/utils.js?{{ .cur_ver }}"></script>
+<script src="{{ .base_path }}assets/js/util/index.js?{{ .cur_ver }}"></script>
 <script src="{{ .base_path }}assets/js/langs.js"></script>
 <script>
     const basePath = '{{ .base_path }}';
diff --git a/web/html/xui/form/client.html b/web/html/xui/form/client.html
index 0b894f01..c2bcace1 100644
--- a/web/html/xui/form/client.html
+++ b/web/html/xui/form/client.html
@@ -126,10 +126,10 @@
         <a-input-number v-model.number="client._totalGB" :min="0"></a-input-number>
     </a-form-item>
     <a-form-item v-if="isEdit && clientStats" label='{{ i18n "usage" }}'>
-        <a-tag :color="clientUsageColor(clientStats, app.trafficDiff)">
-            [[ sizeFormat(clientStats.up) ]] /
-            [[ sizeFormat(clientStats.down) ]]
-            ([[ sizeFormat(clientStats.up + clientStats.down) ]])
+        <a-tag :color="ColorUtils.clientUsageColor(clientStats, app.trafficDiff)">
+            [[ SizeFormatter.sizeFormat(clientStats.up) ]] /
+            [[ SizeFormatter.sizeFormat(clientStats.down) ]]
+            ([[ SizeFormatter.sizeFormat(clientStats.up + clientStats.down) ]])
         </a-tag>
         <a-tooltip>
             <template slot="title">{{ i18n "pages.inbounds.resetTraffic" }}</template>
diff --git a/web/html/xui/inbound_client_table.html b/web/html/xui/inbound_client_table.html
index 13593cea..fbf0699a 100644
--- a/web/html/xui/inbound_client_table.html
+++ b/web/html/xui/inbound_client_table.html
@@ -55,18 +55,18 @@
     <template slot="content" v-if="client.email">
       <table cellpadding="2" width="100%">
         <tr>
-          <td>↑[[ sizeFormat(getUpStats(record, client.email)) ]]</td>
-          <td>↓[[ sizeFormat(getDownStats(record, client.email)) ]]</td>
+          <td>↑[[ SizeFormatter.sizeFormat(getUpStats(record, client.email)) ]]</td>
+          <td>↓[[ SizeFormatter.sizeFormat(getDownStats(record, client.email)) ]]</td>
         </tr>
         <tr v-if="client.totalGB > 0">
           <td>{{ i18n "remained" }}</td>
-          <td>[[ sizeFormat(getRemStats(record, client.email)) ]]</td>
+          <td>[[ SizeFormatter.sizeFormat(getRemStats(record, client.email)) ]]</td>
         </tr>
       </table>
     </template>
     <table>
       <tr class="tr-table-box">
-        <td class="tr-table-rt"> [[ sizeFormat(getSumStats(record, client.email)) ]] </td>
+        <td class="tr-table-rt"> [[ SizeFormatter.sizeFormat(getSumStats(record, client.email)) ]] </td>
         <td class="tr-table-bar" v-if="!client.enable">
           <a-progress :stroke-color="themeSwitcher.isDarkTheme ? 'rgb(72 84 105)' : '#bcbcbc'" :show-info="false" :percent="statsProgress(record, client.email)" />
         </td>
@@ -124,9 +124,9 @@
           </template>
         </span>
       </template>
-      <a-tag style="min-width: 50px; border: none;" :color="userExpiryColor(app.expireDiff, client, themeSwitcher.isDarkTheme)"> [[ remainedDays(client.expiryTime) ]] </a-tag>
+      <a-tag style="min-width: 50px; border: none;" :color="ColorUtils.userExpiryColor(app.expireDiff, client, themeSwitcher.isDarkTheme)"> [[ remainedDays(client.expiryTime) ]] </a-tag>
     </a-popover>
-    <a-tag v-else :color="userExpiryColor(app.expireDiff, client, themeSwitcher.isDarkTheme)" style="border: none;" class="infinite-tag">
+    <a-tag v-else :color="ColorUtils.userExpiryColor(app.expireDiff, client, themeSwitcher.isDarkTheme)" style="border: none;" class="infinite-tag">
       <svg height="10px" width="14px" viewBox="0 0 640 512" fill="currentColor">
         <path d="M484.4 96C407 96 349.2 164.1 320 208.5C290.8 164.1 233 96 155.6 96C69.75 96 0 167.8 0 256s69.75 160 155.6 160C233.1 416 290.8 347.9 320 303.5C349.2 347.9 407 416 484.4 416C570.3 416 640 344.2 640 256S570.3 96 484.4 96zM155.6 368C96.25 368 48 317.8 48 256s48.25-112 107.6-112c67.75 0 120.5 82.25 137.1 112C276 285.8 223.4 368 155.6 368zM484.4 368c-67.75 0-120.5-82.25-137.1-112C364 226.2 416.6 144 484.4 144C543.8 144 592 194.2 592 256S543.8 368 484.4 368z" fill="currentColor"></path>
       </svg>
@@ -172,7 +172,7 @@
           <td colspan="3" style="text-align: center;">{{ i18n "pages.inbounds.traffic" }}</td>
         </tr>
         <tr>
-          <td width="80px" style="margin:0; text-align: right;font-size: 1em;"> [[ sizeFormat(getUpStats(record, client.email) + getDownStats(record, client.email)) ]] </td>
+          <td width="80px" style="margin:0; text-align: right;font-size: 1em;"> [[ SizeFormatter.sizeFormat(getUpStats(record, client.email) + getDownStats(record, client.email)) ]] </td>
           <td width="120px" v-if="!client.enable">
             <a-progress :stroke-color="themeSwitcher.isDarkTheme ? 'rgb(72 84 105)' : '#bcbcbc'" :show-info="false" :percent="statsProgress(record, client.email)" />
           </td>
@@ -181,12 +181,12 @@
               <template slot="content" v-if="client.email">
                 <table cellpadding="2" width="100%">
                   <tr>
-                    <td>↑[[ sizeFormat(getUpStats(record, client.email)) ]]</td>
-                    <td>↓[[ sizeFormat(getDownStats(record, client.email)) ]]</td>
+                    <td>↑[[ SizeFormatter.sizeFormat(getUpStats(record, client.email)) ]]</td>
+                    <td>↓[[ SizeFormatter.sizeFormat(getDownStats(record, client.email)) ]]</td>
                   </tr>
                   <tr>
                     <td>{{ i18n "remained" }}</td>
-                    <td>[[ sizeFormat(getRemStats(record, client.email)) ]]</td>
+                    <td>[[ SizeFormatter.sizeFormat(getRemStats(record, client.email)) ]]</td>
                   </tr>
                 </table>
               </template>
@@ -244,7 +244,7 @@
                     </template>
                   </span>
                 </template>
-                <a-tag style="min-width: 50px; border: none;" :color="userExpiryColor(app.expireDiff, client, themeSwitcher.isDarkTheme)"> [[ remainedDays(client.expiryTime) ]] </a-tag>
+                <a-tag style="min-width: 50px; border: none;" :color="ColorUtils.userExpiryColor(app.expireDiff, client, themeSwitcher.isDarkTheme)"> [[ remainedDays(client.expiryTime) ]] </a-tag>
               </a-popover>
               <a-tag v-else :color="client.enable ? 'purple' : themeSwitcher.isDarkTheme ? '#2c3950' : '#bcbcbc'" class="infinite-tag">
                 <svg height="10px" width="14px" viewBox="0 0 640 512" fill="currentColor">
diff --git a/web/html/xui/inbound_info_modal.html b/web/html/xui/inbound_info_modal.html
index 1c561aa6..5ac5e9ab 100644
--- a/web/html/xui/inbound_info_modal.html
+++ b/web/html/xui/inbound_info_modal.html
@@ -181,8 +181,8 @@
         <tr v-if="infoModal.clientStats">
           <td>{{ i18n "usage" }}</td>
           <td>
-            <a-tag color="green">[[ sizeFormat(infoModal.clientStats.up + infoModal.clientStats.down) ]]</a-tag>
-            <a-tag>↑ [[ sizeFormat(infoModal.clientStats.up) ]] / [[ sizeFormat(infoModal.clientStats.down) ]] ↓</a-tag>
+            <a-tag color="green">[[ SizeFormatter.sizeFormat(infoModal.clientStats.up + infoModal.clientStats.down) ]]</a-tag>
+            <a-tag>↑ [[ SizeFormatter.sizeFormat(infoModal.clientStats.up) ]] / [[ SizeFormatter.sizeFormat(infoModal.clientStats.down) ]] ↓</a-tag>
           </td>
         </tr>
         <tr v-if="infoModal.clientSettings.comment">
@@ -224,7 +224,7 @@
             <a-tag v-if="infoModal.clientStats && infoModal.clientSettings.totalGB > 0" :color="statsColor(infoModal.clientStats)"> [[ getRemStats() ]] </a-tag>
           </td>
           <td>
-            <a-tag v-if="infoModal.clientSettings.totalGB > 0" :color="statsColor(infoModal.clientStats)"> [[ sizeFormat(infoModal.clientSettings.totalGB) ]] </a-tag>
+            <a-tag v-if="infoModal.clientSettings.totalGB > 0" :color="statsColor(infoModal.clientStats)"> [[ SizeFormatter.sizeFormat(infoModal.clientSettings.totalGB) ]] </a-tag>
             <a-tag v-else color="purple" class="infinite-tag">
               <svg height="10px" width="14px" viewBox="0 0 640 512" fill="currentColor">
                 <path d="M484.4 96C407 96 349.2 164.1 320 208.5C290.8 164.1 233 96 155.6 96C69.75 96 0 167.8 0 256s69.75 160 155.6 160C233.1 416 290.8 347.9 320 303.5C349.2 347.9 407 416 484.4 416C570.3 416 640 344.2 640 256S570.3 96 484.4 96zM155.6 368C96.25 368 48 317.8 48 256s48.25-112 107.6-112c67.75 0 120.5 82.25 137.1 112C276 285.8 223.4 368 155.6 368zM484.4 368c-67.75 0-120.5-82.25-137.1-112C364 226.2 416.6 144 484.4 144C543.8 144 592 194.2 592 256S543.8 368 484.4 368z" fill="currentColor"></path>
@@ -233,7 +233,7 @@
           </td>
           <td>
             <template v-if="infoModal.clientSettings.expiryTime > 0">
-              <a-tag :color="usageColor(new Date().getTime(), app.expireDiff, infoModal.clientSettings.expiryTime)"> 
+              <a-tag :color="ColorUtils.usageColor(new Date().getTime(), app.expireDiff, infoModal.clientSettings.expiryTime)"> 
                 <template v-if="app.datepicker === 'gregorian'">
                   [[ DateUtil.formatMillis(infoModal.clientSettings.expiryTime) ]]
                 </template>
@@ -540,11 +540,11 @@
           })
       },
       statsColor(stats) {
-        return usageColor(stats.up + stats.down, app.trafficDiff, stats.total);
+        return ColorUtils.usageColor(stats.up + stats.down, app.trafficDiff, stats.total);
       },
       getRemStats() {
         remained = this.infoModal.clientStats.total - this.infoModal.clientStats.up - this.infoModal.clientStats.down;
-        return remained > 0 ? sizeFormat(remained) : '-';
+        return remained > 0 ? SizeFormatter.sizeFormat(remained) : '-';
       },
       refreshIPs() {
         this.refreshing = true;
diff --git a/web/html/xui/inbounds.html b/web/html/xui/inbounds.html
index 7dc5ff5f..677a3074 100644
--- a/web/html/xui/inbounds.html
+++ b/web/html/xui/inbounds.html
@@ -141,11 +141,11 @@
             <a-row>
               <a-col :xs="24" :sm="24" :lg="12">
                 {{ i18n "pages.inbounds.totalDownUp" }}:
-                <a-tag color="green">[[ sizeFormat(total.up) ]] / [[ sizeFormat(total.down) ]]</a-tag>
+                <a-tag color="green">[[ SizeFormatter.sizeFormat(total.up) ]] / [[ SizeFormatter.sizeFormat(total.down) ]]</a-tag>
               </a-col>
               <a-col :xs="24" :sm="24" :lg="12">
                 {{ i18n "pages.inbounds.totalUsage" }}:
-                <a-tag color="green">[[ sizeFormat(total.up + total.down) ]]</a-tag>
+                <a-tag color="green">[[ SizeFormatter.sizeFormat(total.up + total.down) ]]</a-tag>
               </a-col>
               <a-col :xs="24" :sm="24" :lg="12">
                 {{ i18n "pages.inbounds.inboundCount" }}:
@@ -375,19 +375,19 @@
                   <template slot="content">
                     <table cellpadding="2" width="100%">
                       <tr>
-                        <td>↑[[ sizeFormat(dbInbound.up) ]]</td>
-                        <td>↓[[ sizeFormat(dbInbound.down) ]]</td>
+                        <td>↑[[ SizeFormatter.sizeFormat(dbInbound.up) ]]</td>
+                        <td>↓[[ SizeFormatter.sizeFormat(dbInbound.down) ]]</td>
                       </tr>
                       <tr v-if="dbInbound.total > 0 &&  dbInbound.up + dbInbound.down < dbInbound.total">
                         <td>{{ i18n "remained" }}</td>
-                        <td>[[ sizeFormat(dbInbound.total - dbInbound.up - dbInbound.down) ]]</td>
+                        <td>[[ SizeFormatter.sizeFormat(dbInbound.total - dbInbound.up - dbInbound.down) ]]</td>
                       </tr>
                     </table>
                   </template>
-                  <a-tag :color="usageColor(dbInbound.up + dbInbound.down, app.trafficDiff, dbInbound.total)">
-                    [[ sizeFormat(dbInbound.up + dbInbound.down) ]] /
+                  <a-tag :color="ColorUtils.usageColor(dbInbound.up + dbInbound.down, app.trafficDiff, dbInbound.total)">
+                    [[ SizeFormatter.sizeFormat(dbInbound.up + dbInbound.down) ]] /
                     <template v-if="dbInbound.total > 0">
-                        [[ sizeFormat(dbInbound.total) ]]
+                        [[ SizeFormatter.sizeFormat(dbInbound.total) ]]
                     </template>
                     <template v-else>
                       <svg height="10px" width="14px" viewBox="0 0 640 512" fill="currentColor">
@@ -408,7 +408,7 @@
                   <template v-else slot="content">
                     [[ DateUtil.convertToJalalian(moment(dbInbound.expiryTime)) ]]
                   </template>
-                  <a-tag style="min-width: 50px;" :color="usageColor(new Date().getTime(), app.expireDiff, dbInbound._expiryTime)">
+                  <a-tag style="min-width: 50px;" :color="ColorUtils.usageColor(new Date().getTime(), app.expireDiff, dbInbound._expiryTime)">
                     [[ remainedDays(dbInbound._expiryTime) ]]
                   </a-tag>
                 </a-popover>
@@ -474,19 +474,19 @@
                             <template slot="content">
                               <table cellpadding="2" width="100%">
                                 <tr>
-                                  <td>↑[[ sizeFormat(dbInbound.up) ]]</td>
-                                  <td>↓[[ sizeFormat(dbInbound.down) ]]</td>
+                                  <td>↑[[ SizeFormatter.sizeFormat(dbInbound.up) ]]</td>
+                                  <td>↓[[ SizeFormatter.sizeFormat(dbInbound.down) ]]</td>
                                 </tr>
                                 <tr v-if="dbInbound.total > 0 &&  dbInbound.up + dbInbound.down < dbInbound.total">
                                   <td>{{ i18n "remained" }}</td>
-                                  <td>[[ sizeFormat(dbInbound.total - dbInbound.up - dbInbound.down) ]]</td>
+                                  <td>[[ SizeFormatter.sizeFormat(dbInbound.total - dbInbound.up - dbInbound.down) ]]</td>
                                 </tr>
                               </table>
                             </template>
-                            <a-tag :color="usageColor(dbInbound.up + dbInbound.down, app.trafficDiff, dbInbound.total)">
-                                [[ sizeFormat(dbInbound.up + dbInbound.down) ]] /
+                            <a-tag :color="ColorUtils.usageColor(dbInbound.up + dbInbound.down, app.trafficDiff, dbInbound.total)">
+                                [[ SizeFormatter.sizeFormat(dbInbound.up + dbInbound.down) ]] /
                                 <template v-if="dbInbound.total > 0">
-                                    [[ sizeFormat(dbInbound.total) ]]
+                                    [[ SizeFormatter.sizeFormat(dbInbound.total) ]]
                                 </template>
                               <template v-else>
                                 <svg height="10px" width="14px" viewBox="0 0 640 512" fill="currentColor">
@@ -1274,9 +1274,9 @@
                 return remained>0 ? remained : 0;
             },
             clientStatsColor(dbInbound, email) {
-                if (email.length == 0) return clientUsageColor();
+                if (email.length == 0) return ColorUtils.clientUsageColor();
                 clientStats = dbInbound.clientStats.find(stats => stats.email === email);
-                return clientUsageColor(clientStats, app.trafficDiff)
+                return ColorUtils.clientUsageColor(clientStats, app.trafficDiff)
             },
             statsProgress(dbInbound, email) {
                 if (email.length == 0) return 100;
@@ -1294,17 +1294,17 @@
             },
             remainedDays(expTime){
                 if (expTime == 0) return null;
-                if (expTime < 0) return formatSecond(expTime/-1000);
+                if (expTime < 0) return TimeFormatter.formatSecond(expTime/-1000);
                 now = new Date().getTime();
                 if (expTime < now) return '{{ i18n "depleted" }}';
-                return formatSecond((expTime-now)/1000);
+                return TimeFormatter.formatSecond((expTime-now)/1000);
             },
             statsExpColor(dbInbound, email){
                 if (email.length == 0) return '#7a316f';
                 clientStats = dbInbound.clientStats.find(stats => stats.email === email);
                 if (!clientStats) return '#7a316f';
-                statsColor = usageColor(clientStats.down + clientStats.up, this.trafficDiff, clientStats.total);
-                expColor = usageColor(new Date().getTime(), this.expireDiff, clientStats.expiryTime);
+                statsColor = ColorUtils.usageColor(clientStats.down + clientStats.up, this.trafficDiff, clientStats.total);
+                expColor = ColorUtils.usageColor(new Date().getTime(), this.expireDiff, clientStats.expiryTime);
                 switch (true) {
                     case statsColor == "red" || expColor == "red":
                         return "#cf3c3c"; // Red
@@ -1438,7 +1438,7 @@
             }
         },
         watch: {
-            searchKey: debounce(function (newVal) {
+            searchKey: Utils.debounce(function (newVal) {
                 this.searchInbounds(newVal);
             }, 500)
         },
diff --git a/web/html/xui/index.html b/web/html/xui/index.html
index 8f89da90..89146932 100644
--- a/web/html/xui/index.html
+++ b/web/html/xui/index.html
@@ -45,11 +45,11 @@
                         <a-progress type="dashboard" status="normal"
                           :stroke-color="status.cpu.color"
                           :percent="status.cpu.percent"></a-progress>
-                        <div><b>CPU:</b> [[ cpuCoreFormat(status.cpuCores) ]] <a-tooltip>
+                        <div><b>CPU:</b> [[ CPUFormatter.cpuCoreFormat(status.cpuCores) ]] <a-tooltip>
                           <a-icon type="area-chart"></a-icon> 
                           <template slot="title">
                             <div><b>Logical Processors:</b> [[ (status.logicalPro) ]]</div>
-                            <div><b>Speed:</b> [[ cpuSpeedFormat(status.cpuSpeedMhz) ]]</div>
+                            <div><b>Speed:</b> [[ CPUFormatter.cpuSpeedFormat(status.cpuSpeedMhz) ]]</div>
                           </template>
                         </a-tooltip></div>
                       </a-col>
@@ -58,7 +58,7 @@
                           :stroke-color="status.mem.color"
                           :percent="status.mem.percent"></a-progress>
                         <div>
-                          <b>{{ i18n "pages.index.memory"}}:</b> [[ sizeFormat(status.mem.current) ]] / [[ sizeFormat(status.mem.total) ]]
+                          <b>{{ i18n "pages.index.memory"}}:</b> [[ SizeFormatter.sizeFormat(status.mem.current) ]] / [[ SizeFormatter.sizeFormat(status.mem.total) ]]
                         </div>
                       </a-col>
                     </a-row>
@@ -70,7 +70,7 @@
                           :stroke-color="status.swap.color"
                           :percent="status.swap.percent"></a-progress>
                         <div>
-                          <b>Swap:</b> [[ sizeFormat(status.swap.current) ]] / [[ sizeFormat(status.swap.total) ]]
+                          <b>Swap:</b> [[ SizeFormatter.sizeFormat(status.swap.current) ]] / [[ SizeFormatter.sizeFormat(status.swap.total) ]]
                         </div>
                       </a-col>
                       <a-col :span="12" style="text-align: center">
@@ -78,7 +78,7 @@
                           :stroke-color="status.disk.color"
                           :percent="status.disk.percent"></a-progress>
                         <div>
-                          <b>{{ i18n "pages.index.hard"}}:</b> [[ sizeFormat(status.disk.current) ]] / [[ sizeFormat(status.disk.total) ]]
+                          <b>{{ i18n "pages.index.hard"}}:</b> [[ SizeFormatter.sizeFormat(status.disk.current) ]] / [[ SizeFormatter.sizeFormat(status.disk.total) ]]
                         </div>
                       </a-col>
                     </a-row>
@@ -99,8 +99,8 @@
               <a-col :sm="24" :lg="12">
                 <a-card hoverable>
                   <b>{{ i18n "pages.index.operationHours" }}:</b>
-                  <a-tag :color="status.xray.color">Xray: [[ formatSecond(status.appStats.uptime) ]]</a-tag>
-                  <a-tag color="green">OS: [[ formatSecond(status.uptime) ]]</a-tag>
+                  <a-tag :color="status.xray.color">Xray: [[ TimeFormatter.formatSecond(status.appStats.uptime) ]]</a-tag>
+                  <a-tag color="green">OS: [[ TimeFormatter.formatSecond(status.uptime) ]]</a-tag>
                 </a-card>
               </a-col>
               <a-col :sm="24" :lg="12">
@@ -145,7 +145,7 @@
               <a-col :sm="24" :lg="12">
                 <a-card hoverable>
                   <b>{{ i18n "usage"}}:</b>
-                  <a-tag color="green"> RAM: [[ sizeFormat(status.appStats.mem) ]] </a-tag>
+                  <a-tag color="green"> RAM: [[ SizeFormatter.sizeFormat(status.appStats.mem) ]] </a-tag>
                   <a-tag color="green"> Threads: [[ status.appStats.threads ]] </a-tag>
                 </a-card>
               </a-col>
@@ -207,7 +207,7 @@
                     <a-col :span="12">
                       <a-tag>
                         <a-tooltip>
-                          <a-icon type="arrow-up"></a-icon> Up: [[ sizeFormat(status.netIO.up) ]]/s
+                          <a-icon type="arrow-up"></a-icon> Up: [[ SizeFormatter.sizeFormat(status.netIO.up) ]]/s
                           <template slot="title">
                             {{ i18n "pages.index.upSpeed" }}
                           </template>
@@ -217,7 +217,7 @@
                     <a-col :span="12">
                       <a-tag>
                         <a-tooltip>
-                          <a-icon type="arrow-down"></a-icon> Down: [[ sizeFormat(status.netIO.down) ]]/s
+                          <a-icon type="arrow-down"></a-icon> Down: [[ SizeFormatter.sizeFormat(status.netIO.down) ]]/s
                           <template slot="title">
                             {{ i18n "pages.index.downSpeed" }}
                           </template>
@@ -236,7 +236,7 @@
                           <a-icon type="cloud-upload"></a-icon>
                           <template slot="title">
                             {{ i18n "pages.index.totalSent" }}
-                          </template> Out: [[ sizeFormat(status.netTraffic.sent) ]]
+                          </template> Out: [[ SizeFormatter.sizeFormat(status.netTraffic.sent) ]]
                         </a-tooltip>
                       </a-tag>
                     </a-col>
@@ -246,7 +246,7 @@
                           <a-icon type="cloud-download"></a-icon>
                           <template slot="title">
                             {{ i18n "pages.index.totalReceive" }}
-                          </template> In: [[ sizeFormat(status.netTraffic.recv) ]]
+                          </template> In: [[ SizeFormatter.sizeFormat(status.netTraffic.recv) ]]
                         </a-tooltip>
                       </a-tag>
                     </a-col>
@@ -353,7 +353,7 @@
             if (this.total === 0) {
                 return 0;
             }
-            return toFixed(this.current / this.total * 100, 2);
+            return NumberFormatter.toFixed(this.current / this.total * 100, 2);
         }
 
         get color() {
@@ -396,7 +396,7 @@
             this.logicalPro = data.logicalPro;
             this.cpuSpeedMhz = data.cpuSpeedMhz;
             this.disk = new CurTotal(data.disk.current, data.disk.total);
-            this.loads = data.loads.map(load => toFixed(load, 2));
+            this.loads = data.loads.map(load => NumberFormatter.toFixed(load, 2));
             this.mem = new CurTotal(data.mem.current, data.mem.total);
             this.netIO = data.netIO;
             this.netTraffic = data.netTraffic;
diff --git a/web/html/xui/settings.html b/web/html/xui/settings.html
index 1cccd28d..58a1bf8a 100644
--- a/web/html/xui/settings.html
+++ b/web/html/xui/settings.html
@@ -832,7 +832,7 @@
           if (host == this.oldAllSetting.webDomain) host = null;
           if (port == this.oldAllSetting.webPort) port = null;
           const isTLS = webCertFile !== "" || webKeyFile !== "";
-          const url = buildURL({ host, port, isTLS, base, path: "panel/settings" });
+          const url = URLBuilder.buildURL({ host, port, isTLS, base, path: "panel/settings" });
           window.location.replace(url);
         }
       },
diff --git a/web/html/xui/warp_modal.html b/web/html/xui/warp_modal.html
index 3acd49e8..467f9854 100644
--- a/web/html/xui/warp_modal.html
+++ b/web/html/xui/warp_modal.html
@@ -65,15 +65,15 @@
                     </tr>
                     <tr>
                         <td>WARP+ Data</td>
-                        <td>[[ sizeFormat(warpModal.warpConfig.account.premium_data) ]]</td>
+                        <td>[[ SizeFormatter.sizeFormat(warpModal.warpConfig.account.premium_data) ]]</td>
                     </tr>
                     <tr class="client-table-odd-row">
                         <td>Quota</td>
-                        <td>[[ sizeFormat(warpModal.warpConfig.account.quota) ]]</td>
+                        <td>[[ SizeFormatter.sizeFormat(warpModal.warpConfig.account.quota) ]]</td>
                     </tr>
                     <tr v-if="!ObjectUtil.isEmpty(warpModal.warpConfig.account.usage)">
                         <td>Usage</td>
-                        <td>[[ sizeFormat(warpModal.warpConfig.account.usage) ]]</td>
+                        <td>[[ SizeFormatter.sizeFormat(warpModal.warpConfig.account.usage) ]]</td>
                     </tr>
                 </template>
             </table>
diff --git a/web/html/xui/xray.html b/web/html/xui/xray.html
index 288b69fc..6a367228 100644
--- a/web/html/xui/xray.html
+++ b/web/html/xui/xray.html
@@ -1177,10 +1177,10 @@
             findOutboundTraffic(o) {
                 for (const otraffic of this.outboundsTraffic) {
                     if (otraffic.tag == o.tag) {
-                        return sizeFormat(otraffic.up) + ' / ' + sizeFormat(otraffic.down);
+                        return SizeFormatter.sizeFormat(otraffic.up) + ' / ' + SizeFormatter.sizeFormat(otraffic.down);
                     }
                 }
-                return sizeFormat(0) + ' / ' + sizeFormat(0);
+                return SizeFormatter.sizeFormat(0) + ' / ' + SizeFormatter.sizeFormat(0);
             },
             findOutboundAddress(o) {
                 serverObj = null;
@@ -1929,7 +1929,7 @@
             },
             torrentSettings: {
                 get: function () {
-                    return doAllItemsExist(this.settingsData.protocols.bittorrent, this.blockedProtocols);
+                    return ArrayUtils.doAllItemsExist(this.settingsData.protocols.bittorrent, this.blockedProtocols);
                 },
                 set: function (newValue) {
                     if (newValue) {
@@ -1942,7 +1942,7 @@
             familyProtectSettings: {
                 get: function () {
                     if (!this.templateSettings || !this.templateSettings.dns || !this.templateSettings.dns.servers) return false;
-                    return doAllItemsExist(this.settingsData.familyProtectDNS.servers, this.templateSettings.dns.servers);
+                    return ArrayUtils.doAllItemsExist(this.settingsData.familyProtectDNS.servers, this.templateSettings.dns.servers);
                 },
                 set: function (newValue) {
                     newTemplateSettings = this.templateSettings;