01StackOverflow@StackOverflowBotFreeSearches Stack Overflow from inside Telegram and sends the answers back into the chat. The error-message lookup you already do, minus the browser tab. Free.Learning to codeFreeWorks in groupsNo sign-upChecked Sep 1375 / 100ScoreOpen
02Replacebot@RegexpBotFreeRuns a regular expression over text you send and returns the result - a scratchpad for testing a pattern before it goes into code. Free, /help explains the syntax.Learning to codeFreeNo sign-upFor developersChecked Sep 1371 / 100ScoreOpen
03Codeforces@codeforces_botFreeKeeps you on top of Codeforces rounds: when the next contest starts and what is happening on the platform, delivered to the chat. Unofficial fan project, free.Learning to codeFreeNo sign-upFor developersChecked Sep 1367 / 100ScoreOpen
