About
Telegram Chat ID finds and explains Telegram IDs: a lookup for public chats, converters and checkers for bot developers.
Where answers come from
A public chat's ID comes from Telegram's Bot API (getChat), asked on your behalf through one shared, cached lookup service. Everything about formats and ranges is arithmetic from Telegram's documentation and runs in your browser.
What cannot be found is said plainly: a person, a bot or a private chat cannot be resolved by name, and the pages explain the way that does work.
Two rules
A bot token never reaches this site. The checkers talk to Telegram from your browser, and the server refuses anything that looks like a token.
Every number shown is measured or absent. The lookup statistics are this site's own counters and appear only once there is something counted.
Independent. Not affiliated with Telegram.