01CCoding Questions Tracker@CodingQuestionsBotFreeA tracker for study groups preparing for technical interviews: members log the problems they solve, the group sees weekly counts against a target of seven, and the bot pairs people up for mock interviews. LeetCode and HackerRank links fill in the details. Open source, free.Learning to codeFreeOpen sourceWorks in groupsChecked Nov 470 / 100ScoreOpen
02Codeforces@codeforces_botFreeAn unofficial Codeforces helper made in 2015 by a Codeforces user: it reminds you before each contest, lists upcoming rounds, shows a handle's rating, finds a random problem by tags and keeps a queue of problems to solve later. Free, but nothing new has been announced since 2015.Learning to codeFreeWorks in groupsFor developersChecked Nov 460 / 100ScoreOpen
03Codeforces Live Bot@codeforces_live_botFreeCodeforces with your friends in view: a live scoreboard of the people you follow during a round, with predicted rating changes, reminders in your time zone, a ping when your solution passes system tests, and a summary after the contest. Open source, free, fixed for a Codeforces API change in 2026.Learning to codeFreeOpen sourceWorks in groupsChecked Nov 476 / 100ScoreOpen
04Leetcode daily question reminder@MyLeetCodeDailybotFreeBrings LeetCode's daily problem into Telegram: the full statement on request, or every day at an hour you pick, with hints, difficulty and topics hidden behind buttons until you want them. Open source, free.Learning to codeFreeOpen sourceFor developersChecked Nov 472 / 100ScoreOpen
05LeetCode Daily Reminder@leetcode_daily_reminder_botFreeKeeps reminding you about LeetCode's daily challenge until you solve it: two reminders a day at hours you choose, each with the hours left before the reset, and /done to silence them for the day. Open source, free.Learning to codeFreeOpen sourceFor developersChecked Nov 467 / 100ScoreOpen
06StackOverflow@StackOverflowBotFreeSearches Stack Overflow from inside Telegram, according to its one-line description, which credits an individual developer. Nothing else about it is public (no website, repository or changelog), so treat it as a quick first look. Free.Learning to codeFreeFor developersChecked Nov 456 / 100ScoreOpen
07Replacebot@RegexpBotFreeReformats data with regular expressions you save in the bot: add, change, list and remove your patterns, and delete your account when you are done. A bot catalogue's automated check logged no reply within a minute, so it may be down.Learning to codeFreeFor developersChecked Nov 454 / 100ScoreOpen