🛡️ Telegram Proxy Checker Android

A powerful, native Android application written in Kotlin and Jetpack Compose to extract, sanitize, and verify all 4 official Telegram proxy protocols with real protocol handshakes directly to Telegram datacenters, completely eliminating the "Connecting..." freeze issue.

📢 Official Telegram Channel: @vpnclashfa

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🌟 Key Features

• 🌐 Full 4-Protocol Support:
  1. MTProto: Classic 16-byte hex secrets, dd-prefixed secrets, and anti-censorship Fake-TLS (ee-prefixed secrets with SNI domain spoofing).
  2. SOCKS5: RFC1928 native socket handshakes with optional username/password authentication (tg://socks and socks5://).
  3. HTTP / HTTPS: HTTP CONNECT tunneling to Telegram core servers with optional Basic auth (tg://http and standard HTTP proxies).
  4. WebProxy: Telegram's modern WebProxy protocol over TLS/WebSocket on port 443 (tg://webproxy).
• 🎯 Intelligent Speed & Network Presets:
  • 🚀 Fast: Timeout 3s | Concurrency 50 | TCP Pre-check ON
  • ⚖️ Balanced (Default): Timeout 5s | Concurrency 25 | TCP Pre-check ON
  • 🐢 Heavy Censorship / Intranet: Timeout 60s (1 min) | Concurrency 10 | TCP Pre-check OFF (deep verification bypassing national firewalls without dropping slow proxies)
  • 🛠️ Custom: Fully manual control over timeout, concurrency, and TCP pre-check.
• 📋 Interactive Working Proxies List:
  • Individual cards for every verified proxy
  • Color-coded protocol tags and latency badges (🟢 < 300ms, 🟡 < 800ms, 🔴 > 800ms)
  • 🚀 1-Tap Connect to launch individual proxies directly in Telegram
  • 📋 1-Tap Copy for individual proxy links
• 📊 Real-Time Stats Dashboard:
  • Live breakdown of working proxies by protocol (MTProto, SOCKS5, HTTP, WebProxy)
  • Lowest latency (best ping) and average ping calculation
• 📥 Resilient Subscription System:
  • High timeouts (25s connect / 45s read) and streaming reading to handle massive lists under poor internet conditions without premature cancellation
  • Built-in curated list of 10 active public subscriptions
  • Automatic Base64 decoding
• 💾 Rich Export Tools:
  • 1-Click connect best proxy to Telegram
  • Copy Top N (default top 10)
  • Copy all working proxies
  • Share as Text (.txt) or structured JSON (.json)
• 🤖 GitHub Actions CI/CD:
  • Automated building, versioning, signing, and releasing of signed release APKs (Telegram-Proxy-Checker-vX.X.X.apk).

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📦 Tech Stack & Architecture

• Kotlin & Jetpack Compose: Material 3 dark-themed modern UI
• Coroutines & Semaphores: Non-blocking concurrent socket verification
• Low-Level Sockets: Pure Java/Android socket implementations avoiding JVM global proxy pollution