TelegramTelegram Web K vs A vs Z – What’s the Difference (2025 Update)
Telegram Web K vs A vs Z – What's the Difference?
If you've ever opened Telegram in your browser, you've probably seen URLs like https://web.telegram.org/k/, https://web.telegram.org/a/, or https://web.telegram.org/z/. These represent different Telegram Web versions, each with unique frameworks, features, and release dates. This guide explains how they differ — and why users often choose Talkgram Web instead.
Quick Overview Table
| Version | URL | Framework | Features | Performance | Status (2025) |
|---|---|---|---|---|---|
| K Version | web.telegram.org/k/ | Angular + MTProto | Dark mode, fast login, better encryption | ⚡ Fast | Active |
| A Version | web.telegram.org/a/ | React (legacy) | Early mobile-friendly design | 🐢 Slower | Deprecated |
| Z Version | web.telegram.org/z/ | Vue.js (experimental) | Beta UI, video calls | ⚠️ Unstable | Limited rollout |
Detailed Comparison
Telegram Web K: Built using Angular + MTProto protocol. Features fast login, dark mode, and great speed. Weakness: missing some advanced media features.
Telegram Web A: Early React version (2020–2021). Deprecated, slow, and missing new UI improvements.
Telegram Web Z: Experimental Vue.js build with video call support. Currently unstable and limited to testing users.
Which Telegram Web Version Should You Use?
| Use Case | Recommended Version | Why |
|---|---|---|
| Stability & speed | K Version | Optimized and fully supported |
| Testing new UI | Z Version | Experimental visuals and media features |
| Legacy browsers | A Version | For older browsers only (not recommended) |
Verdict: The K version is the most stable and widely supported in 2025.
A Better Alternative — Talkgram Web
| Feature | Talkgram Web | Telegram Web K | Telegram Web Z |
|---|---|---|---|
| PWA Support | ✅ | ✅ | ⚠️ Limited |
| Multi-Account Login | ✅ | ❌ | ❌ |
| Offline Cache | ✅ | ⚠️ Basic | ❌ |
| Update Cycle | Weekly | Occasional | Irregular |
| Ads / Trackers | None | None | None |
Launch instantly: /download/web
Common Issues with Telegram Web Versions
- Telegram Web K not loading → clear cache or disable VPN
- Telegram Web A showing blank screen → deprecated; switch to K
- Telegram Web Z login not working → use stable K instead
- QR code not loading → try Talkgram Web or Telegram Desktop
See also: /fix/telegram-web-not-working, /compare/talkgram-vs-telegram-desktop
FAQ
Q: Why does Telegram have multiple web versions?
A: Each version was developed by different Telegram teams to test new frameworks and features.
Q: Which Telegram Web version is official?
A: All (K, A, Z) are official, but K is currently the main supported one.
Q: Why does Telegram Web look different across browsers?
A: The K and Z versions use different UI libraries; visuals may vary slightly.
Q: What is Talkgram Web?
A: A performance-optimized wrapper using Telegram's Web API — faster, private, and multi-account compatible.