Lexicon a free Grammarly alternative, local writing assistant

Hacker News

Lexicon is a rich-text editor with grammar checking and AI writing tools (rewriting, tone shifting, and summarizing) that run entirely on your machine. No account, no API calls, and nothing uploaded. Grammar/spelling/punctuation checking runs through LanguageTool locally; the AI tools run through a small quantized model bundled with the app via llama.cpp, or your own Ollama server if you already run one. It's a desktop app installer for Windows and macOS on the releases page, with an in-app auto-updater. Check it out: https://lexicon-writer.pages.dev/ MIT licensed. Repo: https://github.com/AashishH15/Lexicon Please let me know what you think of the app!

Visit product View on Hacker NewsJul 26, 2026

Share card

Actual performance

1points

2comments

Did not reach leaderboard

Launch Intel predictions

Analyze your own launch →

Product HuntOn track for Day 1 leaderboard · Strong signals: mac, macos, model · Missing: agents, agent, cursor

77%77% predicted probability of success on Product Hunt, based on ML models trained on real launch data.

best fitHighest predicted score across all platforms for this description.

Hacker NewsStrong engagement from HN community · Strong signals: llama, io · Missing: https docs, excited, just released

57%57% predicted probability of success on Hacker News, based on ML models trained on real launch data.

nativeThis product was originally launched on this platform.

TrustMRRLess likely to generate early MRR · Missing: mobile apps, ios, personal

41%41% predicted probability of success on TrustMRR, based on ML models trained on real launch data.

Indie HackersIH features products with proven revenue · Missing: supports, reddit linkedin, podcasting

37%37% predicted probability of success on Indie Hackers, based on ML models trained on real launch data.

AppSumoMay struggle as an AppSumo deal · Strong signals: calls · Missing: plus, platform, intuitive

23%23% predicted probability of success on AppSumo, based on ML models trained on real launch data.

Acquire.comPre-revenue stage for this audience · Missing: arr, mrr, revenue

19%19% predicted probability of success on Acquire.com, based on ML models trained on real launch data.

BetaListMay not resonate with beta-testers · Missing: web3, chat, crypto

2%2% predicted probability of success on BetaList, based on ML models trained on real launch data.

Incorrect prediction on native model

Similar products

2 Slash43%Launch Intel prediction score: how likely this product is to succeed on its source platform, based on its name, tagline, and description.

Your Writing Assistant, Everywhere.

Indie Hackerscommitment-side-project

Resume Writing Assistant -standalone-47%Launch Intel prediction score: how likely this product is to succeed on its source platform, based on its name, tagline, and description.

Resume Writing Assistant -standalone-

Hacker News2

Wordblot57%Launch Intel prediction score: how likely this product is to succeed on its source platform, based on its name, tagline, and description.

Your AI-powered writing assistant

Indie Hackers3ai

Interleaf32%Launch Intel prediction score: how likely this product is to succeed on its source platform, based on its name, tagline, and description.

AI-powered writing assistant

Product Hunt+1

SmolCopilot – 360M LLM writing assistant in the browser58%Launch Intel prediction score: how likely this product is to succeed on its source platform, based on its name, tagline, and description.

SmolCopilot – 360M LLM writing assistant in the browser

Hacker News11

Writings35%Launch Intel prediction score: how likely this product is to succeed on its source platform, based on its name, tagline, and description.

The Writing Assistant for Beginner Freelance Copywriters.

Indie Hackers3content

Verbia43%Launch Intel prediction score: how likely this product is to succeed on its source platform, based on its name, tagline, and description.

AI Reply & Writing Assistant

Indie Hackerscommitment-side-project

OpenAI-Based Writing Assistant66%Launch Intel prediction score: how likely this product is to succeed on its source platform, based on its name, tagline, and description.

OpenAI-Based Writing Assistant

Hacker News2

Handywriter71%Launch Intel prediction score: how likely this product is to succeed on its source platform, based on its name, tagline, and description.

AI-Powered Writing Assistant for WordPress

Indie Hackers2ai

SuperChat18%Launch Intel prediction score: how likely this product is to succeed on its source platform, based on its name, tagline, and description.

GPT-4 based writing assistant for your browser.

Indie Hackerscommitment-full-time

Browse all products Analyze your launch