01GrammarNaziBot@GrammarNaziBotFreeSits in a group chat and corrects spelling as people type — the running joke that also quietly improves the chat. Free.Spell checkingFreeWorks in groupsNo sign-upChecked Sep 1374 / 100ScoreOpen
02ProWritingAid@ProWritingAidBotFreeChecks grammar, spelling and style in English and answers with the corrected text. Built around the ProWritingAid engine, it goes further than a speller - it flags wordy, repetitive and passive sentences.Spell checkingFreeNo sign-upInternationalChecked Sep 1376 / 100ScoreOpen
03Corrector@correctorbotFreeA French spelling corrector for chats: send a sentence and it comes back fixed. Small, fast and free - the missing piece for a francophone group.Spell checkingFreeNo sign-upInternationalChecked Sep 1366 / 100ScoreOpen
04Grammar Nazi Bot@grammarNz_BotFreeAn open-source bot that sits in a chat and replies to messages with spelling corrections, in English and Spanish. Free, MIT-licensed, and the only Spanish checker here.Spell checkingFreeOpen sourceWorks in groupsChecked Sep 1369 / 100ScoreOpen
05Check my text bot@check_my_text_botFreeChecks the posts in your channel instead of your messages - add it as an admin and it reports typos in what you publish. English and Russian, free.Spell checkingFreeWorks in channelsFor channel ownersChecked Sep 1366 / 100ScoreOpen
