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Lexicon
Local-first writing assistant w/ offline grammar & AI tools
I built Lexicon, a free, open-source desktop writing assistant. Clean grammar checking and text editing without sending your private drafts to cloud servers or paying monthly subscriptions. A rich editor includes LaTeX math, structured tables, code blocks, and clean PDF/Markdown exports. The app offers proofreading and 15 local text tools (Rewrite, Concise, Tone shifts, Summaries, Tables). It's completely free and open-source under the MIT license.
I built Lexicon because I wanted a clean desktop writing workspace that handles proofreading and AI transformations without sending private documents to cloud servers, requiring account logins, or asking for monthly subscriptions.
Why Lexicon is different:
100% Offline & Private: Zero cloud dependencies, zero telemetry, and zero accounts. Everything stays on your machine.
Local Proofreading: Fast grammar, punctuation, and spellchecking powered by a local LanguageTool engine.
15 On-Device AI Tools: Rewrite, Concise, 9 distinct Tone adjustments, Summarize, and Table generation running via local GGUF models (llama.cpp) or your own local Ollama server.
Rich Workspace: Includes focus mode, LaTeX math rendering, structured tables, code blocks, and clean PDF/Markdown exports.
The app is completely free and open-source (MIT licensed) with pre-packaged desktop installers for Windows (.exe) and macOS (.dmg).
I’d love to hear your thoughts, feedback, or any features you'd like to see next! Thanks for checking out Lexicon! 🚀
“Local-first writing assistant w/ offline grammar & AI tools”
Lexicon was submitted on Product Hunt and earned 4 upvotes and 1 comments, placing #153 on the daily leaderboard. I built Lexicon, a free, open-source desktop writing assistant. Clean grammar checking and text editing without sending your private drafts to cloud servers or paying monthly subscriptions. A rich editor includes LaTeX math, structured tables, code blocks, and clean PDF/Markdown exports. The app offers proofreading and 15 local text tools (Rewrite, Concise, Tone shifts, Summaries, Tables). It's completely free and open-source under the MIT license.
On the analytics side, Lexicon competes within Productivity, Open Source, Writing, GitHub and OpenAI Day — topics that collectively have 825.9k followers on Product Hunt. The dashboard above tracks how Lexicon performed against the three products that launched closest to it on the same day.
Who hunted Lexicon?
Lexicon was hunted by Aashish Harishchandre. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of Lexicon including community comment highlights and product details, visit the product overview.
Aashish Harishchandre
Hey Product Hunt! 👋
I'm the creator of Lexicon.
I built Lexicon because I wanted a clean desktop writing workspace that handles proofreading and AI transformations without sending private documents to cloud servers, requiring account logins, or asking for monthly subscriptions.
Why Lexicon is different:
100% Offline & Private: Zero cloud dependencies, zero telemetry, and zero accounts. Everything stays on your machine.
Local Proofreading: Fast grammar, punctuation, and spellchecking powered by a local LanguageTool engine.
15 On-Device AI Tools: Rewrite, Concise, 9 distinct Tone adjustments, Summarize, and Table generation running via local GGUF models (llama.cpp) or your own local Ollama server.
Rich Workspace: Includes focus mode, LaTeX math rendering, structured tables, code blocks, and clean PDF/Markdown exports.
The app is completely free and open-source (MIT licensed) with pre-packaged desktop installers for Windows (.exe) and macOS (.dmg).
I’d love to hear your thoughts, feedback, or any features you'd like to see next! Thanks for checking out Lexicon! 🚀
GitHub: https://github.com/AashishH15/Lexicon