Products/Developer Tools / Networking / Security/Show HN: Mtproto.zig – High-performance Telegram proxy with DPI evasion

Show HN: Mtproto.zig – High-performance Telegram proxy with DPI evasion

High-performance Telegram MTProto proxy written in Zig

Developer Tools / Networking / SecurityTLS 1.3 Fake Handshake - Connections indistinguishable from normal HTTPSMTProto v2 Obfuscation - AES-256-CTR encrypted tunnelingDRS Dynamic Record Sizing - Mimics browser TLS behaviorMulti-user Access Control - Independent secret-based authenticationAnti-replay - Timestamp + Digest Cache with ±2 min windowConnection Cloaking - Forwards unauthenticated clients to real domainFast Mode Zero-copy S2C - Reduces CPU usageMiddleProxy - Optional ME transport for DC1..5Auto Refresh - Periodically updates MiddleProxy endpointIPv6 Hopping - Auto-rotates IPv6 on ban detectionTCPMSS=88 - ClientHello fragmentation across 6 TCP packetsTCP Desync - Integrated zapret OS-level desynchronizationSplit-TLS - 1-byte Application-level record chunkingZero-RTT - Local Nginx server for active probing defeatZero dependencies - Built entirely on Zig standard libraryThread Safety - No global mutable state

Visit Show HN: Mtproto.zig – High-performance Telegram proxy with DPI evasion →

Our Take

mtproto.zig is the kind of project that makes you remember why open source exists. It runs a Telegram proxy in just 126 KB of binary with RAM usage that barely clears 120 KB, boots faster than you can blink (under 2 ms), and does it with literally zero dependencies—everything built on Zig's standard library. The evasion stack is stacked: TLS fingerprint mimicry, IPv6 hopping on ban detection, TCP desync at the OS level,Split-TLS chunking. This is how you get Telegram traffic past DPI systems so it looks exactly like standard HTTPS. 213 stars and climbing.

Disguises Telegram traffic as standard TLS 1.3 HTTPS to bypass network censorship. Built entirely on Zig standard library with zero dependencies. Produces 126 KB binary using ~120 KB RAM and boots in <2 ms.

Problem It Solves

Bypasses Deep Packet Inspection (DPI) censorship systems that block Telegram traffic. Evades network filtering and enables access to Telegram in restricted networks.

Target Customer

Developers and network users who need to bypass censorship and access Telegram in restricted networks

Use Cases

Telegram proxy in censored regions, DPI evasion, Network censorship bypass

Pricing Details

Open source project - free to use

Free Tier

true

Differentiator

Written in Zig programming language, extremely small footprint (126KB binary), zero dependencies, <2ms boot time, implements multiple DPI evasion techniques including TLS fingerprinting mimicry and IPv6 hopping

Traction

Notable Metrics: 213 stars, 12 forks

Key Facts

The people behind Show HN: Mtproto.zig – High-performance Telegram proxy with DPI evasion

sleep3r

profile

GitHub

Links

Website GitHub Source: hacker-news

Want products like this in your inbox every morning?

Five products. Every morning. Written by someone who actually cares whether they're good or not. Free forever, unsubscribe whenever.