L×Box

L×Box is a high-performance proxy client with no compromises.

You choose the servers. You set the rules. You control the traffic. L×Box does exactly what you told it to.

12+ protocols, advanced routing, full DNS control, detour chains, per-app split tunneling and built-in diagnostics. No account, no ads, no analytics. No server network of our own.

THE CORE IS OURS

L×Box runs on sing-box-lx, our own fork of sing-box, developed together with the app. On top of stock sing-box the core adds:

• AmneziaWG 2.0 — obfuscated WireGuard;
• XHTTP — Xray transport, including stream-one;
• VLESS + ML-KEM-768 — post-quantum protection;
• MASQUE — Cloudflare WARP as a full node and a chain link.

And it is tuned for real life on a phone:

• DNS groups — several resolvers with failover;
• smart urltest — pools, sticky selection, lazy health checks;
• load balancing — connections spread across the pool;
• self-healing of stuck connections;
• idle tunnel sleep — less memory, less battery;
• observability — DNS, connections and chains visible from the app.

The core stays in sync with upstream; changes are verified on real devices.

12+ PROTOCOLS

VLESS, VMess, Trojan, Shadowsocks, Hysteria2, TUIC v5, NaiveProxy, AnyTLS, SSH, SOCKS, WireGuard, AmneziaWG 2.0, MASQUE over QUIC/HTTP-3.

Cloudflare WARP in one tap: registration right in the app, the private key is generated on your device and never leaves it — Cloudflare receives only the public half. WireGuard or MASQUE, optional AmneziaWG obfuscation.

Import any familiar format: subscriptions and links, Base64, Xray arrays, WireGuard URI/INI, Amnezia vpn://, sing-box JSON configs, local files, plain text.

SUBSCRIPTIONS WITHOUT MANUAL WORK

Add a subscription — L×Box parses it and creates nodes with no duplicates. Unwanted nodes can be switched off and stay off through every update, even if the provider renames them.

Processing rules with regex and capture groups rename, rewrite or disable nodes on every refresh — and show in advance which nodes a rule will hit.

Coming from another sing-box client? Import the whole config — with auto-select groups and detour chains.

ROUTING YOU ACTUALLY CONTROL

Shape your internet exit around your life. One device can host several environments at once: work, travel, safe browsing and acceleration, the open internet. Each with its own rules and its own route.

Conditions: domain, IP and CIDR, port, protocol, app, network type.

DNS UNDER YOUR CONTROL

Several resolvers at once. A separate DNS per rule. FakeIP. You decide where every query goes.

FULL DIAGNOSTICS ON BOARD

Ping and speed-test a node, a folder or the whole subscription — with the tunnel up or down. One-way connections get flagged. Full log right in the app. In real time the built-in tools show: which app opened a connection, where to, how much it transferred, which DNS it used, which route it took. Speed and traffic per app and per connection.

AUTOMATION

Works with automation tools (such as Tasker or MacroDroid): start, stop, switch node, query state. Your phone reshapes the setup to your scenarios — at home, on the road, when Wi-Fi changes.

WE SEND YOUR DATA NOWHERE

No account. No ads, no analytics, no advertising ID, no crash reporters. L×Box connects only to the servers and update endpoints you configured. Full backup and restore moves your setup to a new device.

A CLIENT, NOT A VPN SERVICE

L×Box provides no servers and sells no access to anyone's network — you choose your servers and subscriptions.

OPEN SOURCE

Free software under GPLv3. English and Russian UI, light and dark themes.
GitHub: github.com/Leadaxe/LxBox

Is L×Box free to download?
Yes. The APK file linked from this page is free. The developer may offer in-app purchases once installed, but obtaining the installer itself costs nothing.

What Android version does L×Box require?
Android 4.1+ or newer. Installing on older devices may cause crashes or refuse to install.

Is L×Box safe to install?
We link to the exact APK published by Leadaxe. We do not modify the file. Still, as with any sideloaded app, scan it with a reputable antivirus before opening it, and only grant permissions the app genuinely needs.

How do I update L×Box?
Install the newer version on top of the old one — Android will keep your data. If the signature differs, uninstall first (you may lose local progress).

Why is the app not installing?
Common causes: not enough storage, an older Android version than 4.1+, or a conflicting build already installed. Free up space, check your OS version, and uninstall any previous copy before retrying.

1. Tap the Download APK button above and save the file to your device.
2. Open your device Settings → Security (or Apps → Special access → Install unknown apps) and allow your file manager or browser to install unknown apps for this one file only.
3. Open the downloaded com.leadaxe.lxbox.apk file from your Downloads folder.
4. Tap Install and wait for Android to finish.
5. Open «L×Box» by Leadaxe and grant only the permissions it actually needs.
6. Revoke the "unknown sources" permission once you are done installing.

Note: this page hosts or links to the installer only. The application name, icon and description are provided for identification. All trademarks belong to their respective owners.