* feat(clients): add stateless Happ link generator
Generate Happ provider links from the current effective subscription source without caching results. Reject unsafe provider responses and redact failure diagnostics.
* fix(clients): reject duplicate Happ provider fields
Parse Happ provider objects token by token so duplicate supported keys cannot be silently overwritten by encoding/json.
* feat(clients): expose on-demand Happ link API
Expose a no-store client endpoint backed by the Happ link generator and keep its generated OpenAPI contract synchronized.
* fix(openapi): exclude service interfaces from generated types
Keep dependency-injection interfaces out of the frontend API surface while preserving allowed response schemas.
* feat(clients): add stateless Happ QR presentation
Generate Happ links only for the active modal scope and retire late responses so Standard remains immediately available. Add focused component coverage and localized retry guidance across every locale.
* fix(clients): cover overlapping Happ generations
Prove the cancellation cleanup is required by resolving a retired request while its replacement remains pending. Also wait for Regenerate to leave loading state before exercising the existing action.
* fix(clients): harden Happ link handling
Validate generated responses before rendering and hide actions during unresolved requests. Strengthen route, redirect, timeout, and lint regression coverage with mutation-sensitive tests.
* fix(clients): gate Happ link generation behind operator opt-in
- add a fail-closed happLinkEnable setting
- enforce the gate before and after provider requests
- add locked Happ QR state with privacy disclosure and settings link
- cover backend, frontend, settings, and i18n regressions
* fix(frontend): guard oversized Happ QR codes
Keep valid long crypt5 links copyable while suppressing QR rendering and image actions above the encoder's UTF-8 byte limit. Add localized guidance and boundary coverage.
* fix(clients): log the sanitized transport error for Happ link failures
Every fail() call in HappService.Generate passed a string literal as the
detail, so the sanitizer written for provider errors only ever saw
constants, and an operator following the QR modal's "check Logs" hint
found nothing beyond reason=transport. Transport and body-read errors now
flow through sanitizeHappDetail, which also redacts cookie/session pairs.
Drop TestHappLinkEnableDefaultsOffWithoutPersistingRow: it pinned a getter
and its constant default, which the Generate gate test already drives.
* fix(frontend): size the Happ QR cap to level L and keep the QR modal mounted on close
HAPP_QR_MAX_BYTES was the level-M capacity (2331) while QrPanel encodes at
errorLevel "L", whose version-40 byte-mode capacity is 2953, so valid links
between 2332 and 2953 bytes lost their QR. The cap now matches the encoder
and a test renders the real QrPanel at the boundary.
Keying the modal content on `open` remounted it on every close, which cut
the Modal's exit transition and made the openSubId sync unreachable, so
`loading` never turned on for the subLinks fetch and a client without a
subscription link flashed noLinks on reopen. `open` leaves the key and the
sync block now also resets the Happ state.
* chore(clients): request Happ crypt5 links from api-v3
crypto.happ.su serves api-v2.php and api-v3.php side by side. Probed with
the same payloads, both take {"url"} over a JSON POST, answer
{"encrypted_link":"happ://crypt5/..."} of identical length with the same
crypt5 key marker, and fail the same way: 400 "No url provided.",
500 "Invalid URL format.", 405 on GET. Happ's own generator page is
branded "URL Encryption v3", so the panel follows it. The parser and the
link validator are unchanged.
* feat: add local generation of encrypted Happ links
- Implemented functionality to generate encrypted Happ links locally without network dependency.
- Added validation for URL length and format to ensure compliance with processing limits.
- Introduced new error handling for invalid URLs and control characters.
- Updated translations for various languages to reflect changes in Happ link generation.
- Created unit tests to validate the encryption process and ensure session keys and nonces are unique.
* fix(frontend): match the tuic memo deps to the non-optional subSettings
The Happ branch reads subSettings non-optionally in ClientQrModalContent
(happLinkEnable and the WireGuard/AmneziaWG publicHost memos), so React
Compiler infers subSettings.publicHost. The TUIC memo merged in from main
still listed subSettings?.publicHost, which fails oxlint's
preserve-manual-memoization rule and makes the compiler skip optimizing
the component. make verify stopped at lint-fe on the branch head.
* chore(happ): trim the pinned-key provenance comment to two lines
CLAUDE.md caps a comment block at two lines. The bare URL line repeated
the repository and file the next line already names, so it is folded
into that line (review LOW on happ_crypto.go).
---------
Co-authored-by: Sanaei <ho3ein.sanaei@gmail.com>
English | فارسی | العربية | 中文 | Español | Русский | Türkçe
3X-UI is an advanced, open-source web control panel for managing Xray-core servers. It provides a clean, multi-language interface for deploying, configuring, and monitoring a wide range of proxy and VPN protocols — from a single VPS to multi-node deployments.
Built as an enhanced fork of the original X-UI project, 3X-UI adds broader protocol support, improved stability, per-client traffic accounting, and many quality-of-life features.
Important
This project is intended for personal use only. Please do not use it for illegal purposes or in a production environment.
Features
- Multi-protocol inbounds — VLESS, VMess, Trojan, Shadowsocks, WireGuard, AmneziaWG, Hysteria2, MTProto, HTTP, SOCKS (Mixed), Dokodemo-door / Tunnel, and TUN.
- Modern transports & security — TCP (Raw), mKCP, WebSocket, gRPC, HTTPUpgrade, and XHTTP, secured with TLS, XTLS, and REALITY.
- AmneziaWG built in — DPI-resistant WireGuard runs inside the panel on a userspace network stack, with no kernel module, DKMS, or extra packages to install.
- MTProto proxies — per-client FakeTLS secrets, ad-tags, and quotas, applied live without dropping existing connections.
- Fallbacks — serve multiple protocols on a single port (e.g. VLESS and Trojan on 443) using Xray's fallback support.
- Per-client management — traffic quotas, expiry dates, IP limits with trusted-address exemptions, HWID device limits, scheduled renewal cycles, live online status, and one-click share links, QR codes, and subscriptions.
- Traffic statistics — per inbound, per client, and per outbound, with reset controls.
- Multi-node support — manage and scale across multiple servers from a single panel, including cloning inbounds onto other nodes.
- Outbound & routing — WARP, NordVPN, PIA, custom routing rules, load balancers with balancer-to-balancer fallback, and outbound proxy chaining. Bundled geosite and geoip categories are browsable straight from the rule editor.
- Built-in subscription server — raw, JSON, and Clash output, auto-selected from the client's User-Agent, plus custom page templates.
- Telegram bot for remote monitoring and management.
- RESTful API with scoped, optionally expiring tokens and an in-panel API reference.
- Installable panel (PWA) — pin 3X-UI to a desktop or phone home screen.
- Flexible storage — SQLite (default) or PostgreSQL.
- 13 UI languages with dark and light themes.
- Fail2ban integration for enforcing per-client IP limits.
Screenshots
Quick Start
bash <(curl -Ls https://raw.githubusercontent.com/mhsanaei/3x-ui/master/install.sh)
To install a specific version, append its tag (e.g. v3.7.0):
bash <(curl -Ls https://raw.githubusercontent.com/mhsanaei/3x-ui/master/install.sh) v3.7.0
To install the rolling dev build (latest per-commit pre-release from main, not a stable release), pass dev-latest:
bash <(curl -Ls https://raw.githubusercontent.com/mhsanaei/3x-ui/master/install.sh) dev-latest
During installation a random username, password, and access path are generated. After installation, run x-ui to open the management menu, where you can start/stop the service, view or reset your login credentials, manage SSL certificates, and more.
Every release asset is published with a .sha256 sum next to it. Both install.sh and the updater verify the archive against that sum and abort on a mismatch.
For full documentation — installation, configuration, operations, and the complete API reference — visit docs.sanaei.dev.
Unattended install
The installer also runs non-interactively for cloud-init.
Set XUI_NONINTERACTIVE=1 (or pipe with no TTY) and it installs end-to-end with
zero prompts, generating random credentials and writing them to
/etc/x-ui/install-result.env. See deploy/ for:
- Cloud-init user-data — unattended install on any cloud (Hetzner/AWS/DO/Vultr/GCP/Azure/Oracle)
- Hetzner Cloud notes — cloud-init deployment on Hetzner
Supported Platforms
Operating systems: Ubuntu, Debian, Armbian, Fedora, CentOS, RHEL, AlmaLinux, Rocky Linux, Oracle Linux, Amazon Linux, Virtuozzo, Arch, Manjaro, Parch, openSUSE (Tumbleweed / Leap), Alpine, and Windows.
Architectures: amd64 · 386 · arm64 (aarch64) · armv7 · armv6 · armv5 · s390x.
Database Options
3X-UI supports two backends, chosen during the install:
- SQLite (default) — a single file at
/etc/x-ui/x-ui.db. Zero setup, ideal for small and medium deployments. - PostgreSQL — recommended for high client counts or multi-node setups. The installer can install PostgreSQL locally for you, or accept a DSN to an existing server.
At runtime the backend is selected via environment variables (the installer writes these to /etc/default/x-ui for you):
XUI_DB_TYPE=postgres
XUI_DB_DSN=postgres://xui:password@127.0.0.1:5432/xui?sslmode=disable
Migrating an existing SQLite install to PostgreSQL
x-ui migrate-db --dsn "postgres://xui:password@127.0.0.1:5432/xui?sslmode=disable"
# then set XUI_DB_TYPE and XUI_DB_DSN in /etc/default/x-ui and restart:
systemctl restart x-ui
The source SQLite file is left untouched; remove it manually once you have verified the new backend.
Docker
The default docker compose up -d keeps using SQLite. To run with the bundled PostgreSQL service, uncomment the two XUI_DB_* env lines in docker-compose.yml and start with the profile:
docker compose --profile postgres up -d
The image bundles Fail2ban (enabled by default) to enforce per-client IP limits. Fail2ban bans offenders with iptables, which requires the NET_ADMIN capability. docker-compose.yml already grants it via cap_add; if you start the container with docker run instead, add the capabilities yourself, otherwise bans are logged but never applied:
docker run -d --cap-add=NET_ADMIN --cap-add=NET_RAW ... ghcr.io/mhsanaei/3x-ui
Environment Variables
| Variable | Description | Default |
|---|---|---|
XUI_DB_TYPE |
Database backend: sqlite or postgres |
sqlite |
XUI_DB_DSN |
PostgreSQL connection string (when XUI_DB_TYPE=postgres) |
— |
XUI_DB_FOLDER |
Directory for the SQLite database file | /etc/x-ui |
XUI_DB_MAX_OPEN_CONNS |
Maximum open connections (PostgreSQL pool) | — |
XUI_DB_MAX_IDLE_CONNS |
Maximum idle connections (PostgreSQL pool) | — |
XUI_INIT_WEB_BASE_PATH |
The initial URI path for the web panel | / |
XUI_ENABLE_FAIL2BAN |
Enable Fail2ban-based IP-limit enforcement | true |
XUI_LOG_LEVEL |
Log verbosity (debug, info, warning, error) |
info |
XUI_DEBUG |
Enable debug mode | false |
XUI_TUNNEL_HEALTH_MONITOR |
Enable the tunnel health monitor (probes a URL and restarts xray after repeated failures; a restart drops all clients) | false |
XUI_TUNNEL_HEALTH_PROXY |
Proxy the probe is sent through; point it at a local xray inbound so the probe tests the tunnel (e.g. socks5://127.0.0.1:1080). Empty means the probe only checks host connectivity |
— |
XUI_TUNNEL_HEALTH_URL |
URL probed for tunnel health | https://www.cloudflare.com/cdn-cgi/trace |
XUI_TUNNEL_HEALTH_INTERVAL |
Interval between probes | 30s |
XUI_TUNNEL_HEALTH_TIMEOUT |
Per-probe timeout | 10s |
XUI_TUNNEL_HEALTH_FAILURES |
Consecutive failures before a restart is triggered | 3 |
XUI_TUNNEL_HEALTH_COOLDOWN |
Minimum delay between consecutive restarts | 5m |
NODE_TOKEN_ENCRYPTION |
Encryption at rest for node API tokens: off, migration, or required (note: no XUI_ prefix) |
off |
XUI_NODE_TOKEN_KEY_FILE |
JSON keyring (mode 0600) holding the active key id and its base64 32-byte keys |
/etc/x-ui/node_token_key.json |
XUI_NODE_TOKEN_KEY |
A single base64 32-byte key, used only when the key file cannot be loaded | — |
The complete list is on the environment variables reference.
Supported Languages
The panel UI is available in 13 languages:
English · فارسی · العربية · 中文(简体) · 中文(繁體) · Español · Русский · Українська · Türkçe · Tiếng Việt · 日本語 · Bahasa Indonesia · Português (Brasil)
Contributing
Contributions are welcome. Please read the Contributing Guide before opening an issue or pull request.
A Special Thanks to
Acknowledgment
- Iran v2ray rules (License: GPL-3.0): Enhanced v2ray/xray and v2ray/xray-clients routing rules with built-in Iranian domains and a focus on security and adblocking.
- Russia v2ray rules (License: GPL-3.0): This repository contains automatically updated V2Ray routing rules based on data on blocked domains and addresses in Russia.
Community Tools
Tools and integrations built by the community around 3x-ui.
- terraform-provider-3x-ui (License: MIT): Manage inbounds, clients, panel settings, and Xray configuration as code with Terraform / OpenTofu.
- 3X-UI Manager (License: MIT): Native Android client for 3x-ui — dashboard, inbounds, clients with QR sharing, nodes and multi-panel management. Available on F-Droid.
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