Raunak Patil

Best AI writing tools in October 2026

Help with drafting, rewriting, grammar, tone and translation, for emails, essays, posts and books. Below are the 18 that Raunak picked, in Radar's order, then the most popular of the other 85 in this category on Radar.

  1. 1GrammarlyFixes and rewrites your writing wherever you type.Free plan
  2. 2QuillBotParaphrasing, summarising and grammar checks for essays and emails.Free plan
  3. 3SudowriteA writing partner for fiction: brainstorming, drafting and describing scenes.Paid
  4. 4JasperMarketing copy and campaigns that stay in your brand's voice.Paid
  5. 5WordtuneSuggests clearer, shorter or friendlier ways to say each sentence.Free plan
  6. 6Copy.aiMarketing and sales copy, plus workflows that write at scale.Free plan
  7. 7WritesonicSEO articles and marketing content, with tracking of how AI search sees you.Free plan
  8. 8RytrA simple, affordable writing assistant for short-form copy.Free plan
  9. 9AnywordMarketing copy that predicts which version will perform best.Paid
  10. 10WriterAn enterprise AI platform for on-brand content and agents.Paid
  11. 11Hemingway EditorMakes your writing bold and clear, sentence by sentence.Free plan
  12. 12ProWritingAidGrammar and style checks with in-depth reports for long-form writers.Free plan
  13. 13LanguageToolA multilingual grammar and style checker that works everywhere you type.Free plan
  14. 14DeepLTranslation that sounds natural, plus DeepL Write for polishing.Free plan
  15. 15LexA clean word processor with an AI editor that gives real feedback.Free plan
  16. 16PaperpalLanguage and submission checks for academic writing.Free plan
  17. 17JenniA writing partner for essays and papers that finds and cites sources.Free plan
  18. 18HyperWriteA personal writing assistant that drafts and autocompletes as you go.Free plan

Free to start: Grammarly, QuillBot, Wordtune all have a free plan or are free outright.

Popular open-source AI writing tools on GitHub

By stars on GitHub.

  1. prompt-optimizerAn AI prompt optimizer for writing better prompts and getting better AI results.★ 38,337
  2. nextai-translator基于 ChatGPT API 的划词翻译浏览器插件和跨平台桌面端应用 - Browser extension and cross-platform desktop application for translation based on ChatGPT API.★ 25,002
  3. excelizeGo language library for reading and writing Microsoft Excel™ (XLAM / XLSM / XLSX / XLTM / XLTX) spreadsheets★ 20,997
  4. ml-visuals🎨 ML Visuals contains figures and templates which you can reuse and customize to improve your scientific writing.★ 17,424
  5. novelNotion-style WYSIWYG editor with AI-powered autocompletion.★ 16,449
  6. prompt-masterA Claude skill that writes the accurate prompts for any AI tool. Zero tokens or credits wasted. Full context and memory retention★ 14,543
  7. read-frog🐸 Read Frog - Open-source AI language learning & flashcards, an Immersive Translate alternative | 🐸 陪读蛙 - 开源 AI 语言学习与闪词卡，沉浸式翻译替代★ 10,090
  8. langchaingoLangChain for Go, the easiest way to write LLM-based programs in Go★ 9,729
  9. OpenNMT-pyOpen Source Neural Machine Translation and (Large) Language Models in PyTorch★ 7,018
  10. argos-translateOpen-source offline translation library written in Python★ 6,570

Apps to try in the browser, on Hugging Face Spaces

By likes on Hugging Face.

  1. ✍Free AI HumanizerFree, no-signup AI text humanizer. Bilingual EN/ZH.♥ 364
  2. ✨Bedtime Story GeneratorCraft magical tales in seconds.♥ 174
  3. 🎬LLM CinemaA small LLM writes, draws & directs original ASCII films♥ 110
  4. ✨Emoji GeneratorTranslate text to emojis with Gemma 3 270M running on-device♥ 81
  5. 🌖Document Summarizationtext2text models for document summarization♥ 75
  6. 🤖AI Text Humanizer & Detector ProTransform AI text to natural, human-like writing♥ 56
  7. 🌐TranslateGemma 4B WebGPUPrivate browser-based translator with 56 languages♥ 53

Launched on Product Hunt

By upvotes on Product Hunt.

  1. YouMindThe first AI creation studio where learning meets writing▲ 1,217
  2. OpenArt Consistent CharactersCraft your characters and stories with ease▲ 874
  3. BlogBowlKeyword‑driven AI articles auto‑posted to your blog▲ 726
  4. Grimo (:b)etaCursor for writing▲ 563
  5. EffieEffortless Writing, Endless Inspiration▲ 554
  6. Veo 3.1Bring stories to life with stunningly real visuals▲ 539
  7. SagaLabs AITranslate like native▲ 503
  8. BulletpenWrite great essays while you yap▲ 480
  9. Typeahead 2.0Private AI autocomplete for every app on your Mac▲ 421
  10. CreaiboCreate 10x better content that sounds like you, faster▲ 416
Browse all 103 on RadarAsk Radar what you need