I built TG Cleaner after a deeply personal frustration I had joined hundreds of Telegram groups over the years (crypto, dev communities, random hobby groups) and had absolutely no clean way to leave them in bulk. Every solution I found either required me to set up a Telegram developer account, paste in my own API keys, or trust a shady script I found on GitHub. I wanted something that just worked log in with your phone, see your groups, click leave. So I built it. The backend holds the Telegram API credentials so you never have to touch them. Sessions are encrypted. We never read messages only the group list. A few things I'm proud of: — No API key setup. Ever. — 0.6s delay between leaves (keeps you safe from Telegram rate limits) — Works on mobile too — Free tier so you can try it risk-free Would love to hear what you think, and especially: what other Telegram pain points would you want solved? Happy to answer anything. 🙏