diff --git a/docs/configs/settings.md b/docs/configs/settings.md
index 035da32cd..a3ab2981d 100644
--- a/docs/configs/settings.md
+++ b/docs/configs/settings.md
@@ -396,7 +396,9 @@ Set your desired language using:
 language: fr
 ```
 
-Currently supported languages: ca, de, en, es, fr, he, hr, hu, it, nb-NO, nl, pt, ru, sv, vi, zh-CN, zh-Hant
+Currently supported languages: ca, de, en, es, fr, he, hr, hu, it, nb-NO, nl, pt, ru, sv, vi, zh-Hans (Simplified), zh-Hant (Traditional)
+
+`zh-CN` will still work and is automatically mapped to `zh-Hans` for backwards compatibility.
 
 You can also specify locales e.g. for the DateTime widget, e.g. en-AU, en-GB, etc.
 
diff --git a/public/locales/zh-CN/common.json b/public/locales/zh-CN/common.json
deleted file mode 100644
index d9ab4c628..000000000
--- a/public/locales/zh-CN/common.json
+++ /dev/null
@@ -1,750 +0,0 @@
-{
-    "widget": {
-        "missing_type": "缺少小部件类型：{{type}}",
-        "api_error": "API错误",
-        "status": "状态",
-        "information": "信息",
-        "url": "URL",
-        "raw_error": "原始错误",
-        "response_data": "返回数据"
-    },
-    "search": {
-        "placeholder": "搜索…"
-    },
-    "resources": {
-        "total": "总计",
-        "free": "空闲",
-        "used": "已用",
-        "load": "负载",
-        "cpu": "处理器",
-        "mem": "内存",
-        "temp": "温度",
-        "max": "最大",
-        "uptime": "运行时间",
-        "months": "月",
-        "days": "天",
-        "hours": "时",
-        "minutes": "分"
-    },
-    "docker": {
-        "rx": "接收",
-        "tx": "发送",
-        "mem": "内存",
-        "cpu": "处理器",
-        "offline": "离线",
-        "error": "错误",
-        "unknown": "未知问题",
-        "starting": "启动中",
-        "unhealthy": "不健康的",
-        "not_found": "未找到",
-        "running": "运行中",
-        "exited": "已退出",
-        "partial": "部分",
-        "healthy": "健康的"
-    },
-    "emby": {
-        "playing": "播放中",
-        "transcoding": "转码",
-        "bitrate": "比特率",
-        "no_active": "暂无播放",
-        "movies": "电影",
-        "series": "系列",
-        "episodes": "剧集",
-        "songs": "歌曲"
-    },
-    "tautulli": {
-        "playing": "播放中",
-        "transcoding": "转码",
-        "bitrate": "比特率",
-        "no_active": "暂无播放",
-        "plex_connection_error": "Check Plex Connection"
-    },
-    "rutorrent": {
-        "active": "活动中",
-        "upload": "上传",
-        "download": "下载"
-    },
-    "sonarr": {
-        "wanted": "想看",
-        "queued": "排队",
-        "series": "系列",
-        "queue": "Queue",
-        "unknown": "Unknown"
-    },
-    "radarr": {
-        "wanted": "想看",
-        "queued": "队列",
-        "movies": "电影",
-        "missing": "丢失",
-        "queue": "Queue",
-        "unknown": "Unknown"
-    },
-    "readarr": {
-        "wanted": "订阅",
-        "queued": "队列",
-        "books": "书籍"
-    },
-    "ombi": {
-        "pending": "待办的",
-        "approved": "已批准",
-        "available": "可用的"
-    },
-    "jellyseerr": {
-        "pending": "待办的",
-        "approved": "得到正式认可的",
-        "available": "可用的"
-    },
-    "pihole": {
-        "queries": "查询",
-        "blocked": "阻止",
-        "gravity": "重力",
-        "blocked_percent": "拦截 %"
-    },
-    "speedtest": {
-        "upload": "上传",
-        "download": "下载",
-        "ping": "ping"
-    },
-    "portainer": {
-        "running": "运行中",
-        "stopped": "停止",
-        "total": "总计"
-    },
-    "traefik": {
-        "routers": "路由器",
-        "services": "服务",
-        "middleware": "中间件"
-    },
-    "npm": {
-        "enabled": "已启用",
-        "disabled": "禁用",
-        "total": "全部的"
-    },
-    "weather": {
-        "current": "当前定位",
-        "allow": "点击并允许",
-        "updating": "更新中",
-        "wait": "请稍候"
-    },
-    "overseerr": {
-        "pending": "待办",
-        "approved": "已批准",
-        "available": "可用",
-        "processing": "处理中"
-    },
-    "sabnzbd": {
-        "rate": "速率",
-        "queue": "队列",
-        "timeleft": "剩余时间"
-    },
-    "nzbget": {
-        "rate": "速率",
-        "remaining": "剩余",
-        "downloaded": "下载"
-    },
-    "coinmarketcap": {
-        "configure": "配置一个或多个需要追踪的加密",
-        "1hour": "1小时",
-        "1day": "1天",
-        "7days": "7天",
-        "30days": "30天"
-    },
-    "gotify": {
-        "apps": "应用",
-        "clients": "客户端",
-        "messages": "信息"
-    },
-    "prowlarr": {
-        "enableIndexers": "索引器",
-        "numberOfGrabs": "抓取",
-        "numberOfQueries": "查询",
-        "numberOfFailGrabs": "抓取失败",
-        "numberOfFailQueries": "查询失败"
-    },
-    "transmission": {
-        "download": "下载",
-        "upload": "上传",
-        "leech": "下载中",
-        "seed": "做种"
-    },
-    "jackett": {
-        "configured": "已配置",
-        "errored": "出错了"
-    },
-    "bazarr": {
-        "missingEpisodes": "缺少的剧集",
-        "missingMovies": "缺少的电影"
-    },
-    "lidarr": {
-        "wanted": "订阅",
-        "queued": "队列",
-        "artists": "Artists"
-    },
-    "adguard": {
-        "queries": "查询",
-        "blocked": "阻止",
-        "filtered": "过滤",
-        "latency": "延迟"
-    },
-    "qbittorrent": {
-        "download": "下载",
-        "upload": "上传",
-        "leech": "下载中",
-        "seed": "做种"
-    },
-    "mastodon": {
-        "user_count": "用户",
-        "status_count": "帖子",
-        "domain_count": "域"
-    },
-    "strelaysrv": {
-        "numActiveSessions": "会话",
-        "dataRelayed": "中继",
-        "numConnections": "连接",
-        "transferRate": "速度"
-    },
-    "authentik": {
-        "users": "用户",
-        "loginsLast24H": "登录 (24h)",
-        "failedLoginsLast24H": "登录失败 (24h)"
-    },
-    "proxmox": {
-        "mem": "内存",
-        "cpu": "处理器",
-        "lxc": "容器",
-        "vms": "虚拟机"
-    },
-    "unifi": {
-        "users": "用户",
-        "uptime": "系统运行时间",
-        "days": "天",
-        "wan": "广域网",
-        "lan_users": "局域网用户",
-        "wlan_users": "无线局域网用户",
-        "up": "向上",
-        "down": "向下",
-        "wait": "请稍候",
-        "lan": "局域网",
-        "wlan": "无线局域网",
-        "devices": "设备",
-        "lan_devices": "局域网设备",
-        "wlan_devices": "无线局域网设备",
-        "empty_data": "子系统状态未知"
-    },
-    "plex": {
-        "streams": "活动流",
-        "movies": "电影",
-        "tv": "电视节目",
-        "albums": "专辑"
-    },
-    "glances": {
-        "cpu": "处理器",
-        "wait": "请稍等",
-        "temp": "温度",
-        "uptime": "运行时间",
-        "days": "天",
-        "hours": "时",
-        "load": "Load",
-        "warn": "Warn",
-        "total": "Total",
-        "free": "Free",
-        "used": "Used",
-        "crit": "Crit",
-        "read": "Read",
-        "write": "Write",
-        "gpu": "GPU",
-        "mem": "Mem",
-        "swap": "Swap",
-        "_temp": "Temp"
-    },
-    "changedetectionio": {
-        "totalObserved": "观察到的总数",
-        "diffsDetected": "检测到差异"
-    },
-    "wmo": {
-        "0-day": "晴天",
-        "0-night": "晴朗",
-        "1-day": "主要是晴天",
-        "3-day": "阴天",
-        "3-night": "阴天",
-        "45-day": "有雾",
-        "48-day": "有雾",
-        "51-day": "小雨",
-        "73-night": "中雪",
-        "75-day": "大雪",
-        "1-night": "大部晴朗",
-        "2-day": "多云",
-        "2-night": "多云",
-        "45-night": "有雾",
-        "48-night": "有雾",
-        "51-night": "小雨",
-        "53-day": "小雨",
-        "53-night": "小雨",
-        "55-day": "毛毛雨",
-        "55-night": "毛毛雨",
-        "56-day": "小冻毛雨",
-        "56-night": "小冻毛雨",
-        "57-day": "冻毛雨",
-        "57-night": "冻毛雨",
-        "61-day": "小雨",
-        "61-night": "小雨",
-        "63-day": "雨",
-        "63-night": "雨",
-        "65-day": "大雨",
-        "65-night": "大雨",
-        "66-day": "冻雨",
-        "66-night": "冻雨",
-        "67-day": "冻雨",
-        "67-night": "冻雨",
-        "71-day": "小雪",
-        "71-night": "小雪",
-        "73-day": "中雪",
-        "75-night": "大雪",
-        "77-day": "雪粒",
-        "77-night": "雪粒",
-        "80-day": "微阵雨",
-        "80-night": "微阵雨",
-        "81-day": "阵雨",
-        "81-night": "阵雨",
-        "82-day": "强阵雨",
-        "82-night": "强阵雨",
-        "85-day": "阵雪",
-        "85-night": "阵雪",
-        "86-day": "阵雪",
-        "86-night": "阵雪",
-        "95-day": "雷雨",
-        "95-night": "雷雨",
-        "96-day": "雷雨伴随冰雹",
-        "96-night": "雷雨伴随冰雹",
-        "99-day": "雷雨伴随冰雹",
-        "99-night": "雷雨伴随冰雹"
-    },
-    "quicklaunch": {
-        "bookmark": "书签",
-        "service": "服务",
-        "search": "搜索",
-        "custom": "自定",
-        "visit": "访问",
-        "url": "网址"
-    },
-    "homebridge": {
-        "available_update": "System",
-        "updates": "更新",
-        "update_available": "有可用的更新",
-        "up_to_date": "Up to Date",
-        "child_bridges": "子网桥",
-        "child_bridges_status": "{{ok}}/{{total}}",
-        "up": "Up",
-        "pending": "待定中",
-        "down": "Down"
-    },
-    "autobrr": {
-        "approvedPushes": "已核准",
-        "rejectedPushes": "拒绝",
-        "filters": "Filters",
-        "indexers": "索引器"
-    },
-    "watchtower": {
-        "containers_scanned": "已扫描",
-        "containers_updated": "已升级",
-        "containers_failed": "失败"
-    },
-    "tubearchivist": {
-        "downloads": "队列",
-        "videos": "影片",
-        "channels": "频道",
-        "playlists": "播放清单"
-    },
-    "truenas": {
-        "load": "系统负载",
-        "uptime": "运行时间",
-        "alerts": "警报",
-        "time": "{{value, number(style: unit; unitDisplay: long;)}}"
-    },
-    "navidrome": {
-        "nothing_streaming": "暂无播放",
-        "please_wait": "请等待"
-    },
-    "pyload": {
-        "speed": "速度",
-        "active": "Active",
-        "queue": "队列",
-        "total": "Total"
-    },
-    "gluetun": {
-        "public_ip": "公网 IP",
-        "region": "区域",
-        "country": "国家"
-    },
-    "hdhomerun": {
-        "channels": "频道",
-        "hd": "HD"
-    },
-    "ping": {
-        "error": "错误",
-        "ping": "Ping",
-        "up": "Up",
-        "down": "Down"
-    },
-    "scrutiny": {
-        "passed": "通过",
-        "failed": "失败",
-        "unknown": "未知的"
-    },
-    "paperlessngx": {
-        "inbox": "收件箱",
-        "total": "Total"
-    },
-    "deluge": {
-        "download": "下载",
-        "upload": "上传",
-        "leech": "下载中",
-        "seed": "做种"
-    },
-    "flood": {
-        "leech": "下载中",
-        "download": "下载",
-        "upload": "上传",
-        "seed": "做种"
-    },
-    "tdarr": {
-        "saved": "已保存",
-        "queue": "队列",
-        "processed": "已处理",
-        "errored": "出错"
-    },
-    "miniflux": {
-        "read": "已读",
-        "unread": "未读"
-    },
-    "nextdns": {
-        "wait": "请稍候",
-        "no_devices": "没有接收到设备数据"
-    },
-    "common": {
-        "bibyterate": "{{value, rate(bits: false; binary: true)}}",
-        "bibitrate": "{{value, rate(bits: true; binary: true)}}"
-    },
-    "omada": {
-        "connectedAp": "连接中的AP",
-        "activeUser": "活跃设备",
-        "alerts": "警报",
-        "connectedGateway": "已连接网关",
-        "connectedSwitches": "已连接开关"
-    },
-    "downloadstation": {
-        "download": "下载",
-        "upload": "上传",
-        "leech": "下载中",
-        "seed": "做种"
-    },
-    "mikrotik": {
-        "cpuLoad": "处理器",
-        "memoryUsed": "内存",
-        "uptime": "运行时间",
-        "numberOfLeases": "租约"
-    },
-    "xteve": {
-        "streams_all": "所有播放活动",
-        "streams_active": "正在播放",
-        "streams_xepg": "XEPG 频道"
-    },
-    "opnsense": {
-        "cpu": "处理器",
-        "memory": "内存",
-        "wanUpload": "WAN上传",
-        "wanDownload": "WAN下载"
-    },
-    "moonraker": {
-        "printer_state": "打印机状态",
-        "print_status": "打印状态",
-        "print_progress": "打印进程",
-        "layers": "层"
-    },
-    "medusa": {
-        "wanted": "关注中",
-        "queued": "已加入队列",
-        "series": "Series"
-    },
-    "octoprint": {
-        "printer_state": "打印机状态",
-        "temp_tool": "喷头温度",
-        "temp_bed": "平台温度",
-        "job_completion": "完成度"
-    },
-    "cloudflared": {
-        "origin_ip": "源IP",
-        "status": "状态"
-    },
-    "proxmoxbackupserver": {
-        "datastore_usage": "数据存储",
-        "failed_tasks_24h": "24h失败任务",
-        "cpu_usage": "处理器",
-        "memory_usage": "内存"
-    },
-    "immich": {
-        "users": "使用者",
-        "photos": "照片",
-        "videos": "影片",
-        "storage": "储存空间"
-    },
-    "uptimekuma": {
-        "up": "在线网站",
-        "down": "离线网站",
-        "uptime": "运行时间",
-        "incident": "严重事件",
-        "m": "m"
-    },
-    "komga": {
-        "libraries": "书库",
-        "series": "系列",
-        "books": "书刊"
-    },
-    "mylar": {
-        "series": "系列",
-        "issues": "问题",
-        "wanted": "关注中"
-    },
-    "photoprism": {
-        "albums": "相册",
-        "photos": "照片",
-        "videos": "视频",
-        "people": "人物"
-    },
-    "diskstation": {
-        "uptime": "运行时间",
-        "volumeAvailable": "剩余存储",
-        "days": "天"
-    },
-    "fileflows": {
-        "queue": "队列",
-        "processing": "处理中",
-        "processed": "已处理",
-        "time": "时间"
-    },
-    "grafana": {
-        "totalalerts": "警报总数",
-        "dashboards": "控制面板",
-        "datasources": "数据来源",
-        "alertstriggered": "触发的警报"
-    },
-    "nextcloud": {
-        "cpuload": "处理器",
-        "memoryusage": "内存",
-        "freespace": "剩余空间",
-        "activeusers": "活跃用户",
-        "numfiles": "Files",
-        "numshares": "共享项目"
-    },
-    "kopia": {
-        "status": "状态",
-        "size": "大小",
-        "lastrun": "最后运行",
-        "nextrun": "下次运行",
-        "failed": "失败"
-    },
-    "unmanic": {
-        "active_workers": "在线工作节点",
-        "total_workers": "工作节点总数",
-        "records_total": "队列长度"
-    },
-    "healthchecks": {
-        "new": "新建立",
-        "up": "在线的",
-        "grace": "延缓中",
-        "down": "离线",
-        "paused": "暂停",
-        "status": "状态",
-        "last_ping": "上次检查",
-        "never": "尚未检查"
-    },
-    "pterodactyl": {
-        "servers": "服务器",
-        "nodes": "节点"
-    },
-    "prometheus": {
-        "targets_up": "目标上线",
-        "targets_down": "目标在线",
-        "targets_total": "总目标"
-    },
-    "minecraft": {
-        "players": "玩家",
-        "version": "版本",
-        "status": "状态",
-        "up": "在线的",
-        "down": "离线"
-    },
-    "ghostfolio": {
-        "gross_percent_today": "今天",
-        "gross_percent_1y": "一年",
-        "gross_percent_max": "所有时间"
-    },
-    "audiobookshelf": {
-        "podcasts": "播客",
-        "books": "图书",
-        "podcastsDuration": "持续时间",
-        "booksDuration": "持续时间"
-    },
-    "homeassistant": {
-        "people_home": "房间",
-        "lights_on": "照明开",
-        "switches_on": "开关开"
-    },
-    "freshrss": {
-        "subscriptions": "订阅",
-        "unread": "未读"
-    },
-    "channelsdvrserver": {
-        "shows": "节目",
-        "recordings": "录像",
-        "scheduled": "已计划的",
-        "passes": "通行证"
-    },
-    "whatsupdocker": {
-        "monitoring": "监测中",
-        "updates": "可更新"
-    },
-    "tailscale": {
-        "address": "地址",
-        "expires": "失效",
-        "never": "从不",
-        "last_seen": "最后上线",
-        "days": "{{number}}d",
-        "hours": "{{number}}h",
-        "minutes": "{{number}}m",
-        "seconds": "{{number}}s",
-        "ago": "{{value}} 以前",
-        "now": "现在",
-        "years": "{{number}}年",
-        "weeks": "{{number}}周"
-    },
-    "qnap": {
-        "cpuUsage": "处理器",
-        "memUsage": "内存",
-        "systemTempC": "系统温度",
-        "poolUsage": "存储池",
-        "volumeUsage": "Volume Usage",
-        "invalid": "Invalid"
-    },
-    "pfsense": {
-        "load": "平均负载",
-        "memory": "内存",
-        "wanStatus": "WAN 状态",
-        "up": "上传",
-        "down": "下载",
-        "temp": "温度",
-        "disk": "磁盘",
-        "wanIP": "WAN IP"
-    },
-    "caddy": {
-        "upstreams": "上游",
-        "requests": "当前请求",
-        "requests_failed": "失败请求"
-    },
-    "evcc": {
-        "pv_power": "正式环境",
-        "battery_soc": "Battery",
-        "grid_power": "Grid",
-        "home_power": "Consumption",
-        "charge_power": "Charger",
-        "watt_hour": "Wh"
-    },
-    "pialert": {
-        "total": "Total",
-        "connected": "Connected",
-        "new_devices": "New Devices",
-        "down_alerts": "Down Alerts"
-    },
-    "jdownloader": {
-        "downloadCount": "Queue Count",
-        "downloadSpeed": "Download Speed",
-        "downloadBytesRemaining": "Remaining",
-        "downloadTotalBytes": "Size"
-    },
-    "kavita": {
-        "seriesCount": "系列",
-        "totalFiles": "文件"
-    },
-    "gamedig": {
-        "name": "Name",
-        "map": "Map",
-        "currentPlayers": "Current players",
-        "players": "Players",
-        "maxPlayers": "Max players",
-        "bots": "Bots",
-        "ping": "Ping",
-        "status": "Status",
-        "online": "Online",
-        "offline": "Offline"
-    },
-    "azuredevops": {
-        "canceled": "Canceled",
-        "inProgress": "In Progress",
-        "result": "Result",
-        "status": "Status",
-        "buildId": "Build ID",
-        "succeeded": "Succeeded",
-        "notStarted": "Not Started",
-        "failed": "Failed",
-        "totalPrs": "Total PRs",
-        "myPrs": "My PRs",
-        "approved": "Approved"
-    },
-    "urbackup": {
-        "ok": "Ok",
-        "errored": "Errors",
-        "noRecent": "Out of Date",
-        "totalUsed": "Used Storage"
-    },
-    "openmediavault": {
-        "downloading": "Downloading",
-        "total": "Total",
-        "running": "Running",
-        "stopped": "Stopped",
-        "passed": "Passed",
-        "failed": "Failed"
-    },
-    "mealie": {
-        "recipes": "Recipes",
-        "users": "Users",
-        "categories": "Categories",
-        "tags": "Tags"
-    },
-    "atsumeru": {
-        "series": "Series",
-        "archives": "Archives",
-        "chapters": "Chapters",
-        "categories": "Categories"
-    },
-    "calibreweb": {
-        "books": "书籍",
-        "authors": "作者",
-        "categories": "分类",
-        "series": "丛书"
-    },
-    "uptimerobot": {
-        "status": "Status",
-        "uptime": "Uptime",
-        "lastDown": "Last Downtime",
-        "downDuration": "Downtime Duration",
-        "sitesUp": "Sites Up",
-        "sitesDown": "Sites Down",
-        "paused": "Paused",
-        "notyetchecked": "Not Yet Checked",
-        "up": "Up",
-        "seemsdown": "Seems Down",
-        "down": "Down",
-        "unknown": "Unknown"
-    },
-    "opendtu": {
-        "relativePower": "Power %",
-        "yieldDay": "Today",
-        "limit": "Limit",
-        "absolutePower": "Power"
-    },
-    "calendar": {
-        "physicalRelease": "Physical release",
-        "inCinemas": "In cinemas",
-        "digitalRelease": "Digital release"
-    }
-}
diff --git a/src/pages/index.jsx b/src/pages/index.jsx
index e66a19d9e..9109b4bd3 100644
--- a/src/pages/index.jsx
+++ b/src/pages/index.jsx
@@ -41,6 +41,17 @@ const Version = dynamic(() => import("components/version"), {
 
 const rightAlignedWidgets = ["weatherapi", "openweathermap", "weather", "openmeteo", "search", "datetime"];
 
+// Normalize language codes so older config values like zh-CN still point to Crowdin-provided ones
+const LANGUAGE_ALIASES = {
+  "zh-cn": "zh-Hans",
+};
+
+const normalizeLanguage = (language) => {
+  if (!language) return "en";
+  const alias = LANGUAGE_ALIASES[language.toLowerCase()];
+  return alias || language;
+};
+
 export async function getStaticProps() {
   let logger;
   try {
@@ -50,6 +61,7 @@ export async function getStaticProps() {
     const services = await servicesResponse();
     const bookmarks = await bookmarksResponse();
     const widgets = await widgetsResponse();
+    const language = normalizeLanguage(settings.language);
 
     return {
       props: {
@@ -60,7 +72,7 @@ export async function getStaticProps() {
           "/api/widgets": widgets,
           "/api/hash": false,
         },
-        ...(await serverSideTranslations(settings.language ?? "en")),
+        ...(await serverSideTranslations(language)),
       },
     };
   } catch (e) {
@@ -218,8 +230,9 @@ function Home({ initialSettings }) {
   );
 
   useEffect(() => {
-    if (settings.language) {
-      i18n.changeLanguage(settings.language);
+    const language = normalizeLanguage(settings.language);
+    if (language) {
+      i18n.changeLanguage(language);
     }
 
     if (settings.theme && theme !== settings.theme) {