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CLUSTER GRAMMAR-SPELLING-CORRECT · 14 ENTRIES · EARLIEST ENTRY 2025-11-16

AI writing correction tools

These products automate spelling, grammar, and punctuation correction, often as browser or desktop extensions, with some offering AI rewriting, on-device processing, or bilingual support. The cluster's dated history is too thin to read a shape from, given only two dated entries before the index start. Traction is led by mc-grammar (5 stars), followed by kallilex (3 stars) and WriteRight (0 stars).

Entry timeline

ENTRY TIMELINE

NOV 2025: 1AUG 2026: 5SEP 2026: 3OCT 2026: 5
NOV 2025OCT 2026

Each bar is the month a member carries, which is a creation date where the source published one and a crawl date otherwise. Nothing in the index was found before 11 August 2026, and coverage broadened sharply on 14–15 August, so a bar from then on reports how much we found that month, not how much was built; an earlier bar reports how far back a member's own source dated it — not how long we have been watching.

Members by activity

Activity signals, not revenue.

Build origin · 2 ai-built · 1 hand-coded · 11 unlabelled

Operator · 7 hobby · 7 unlabelled

Two labels per entry, never collapsed into one: how it was built, and who stands behind it. Counted over the 14 listed below. Unlabelled means nothing has decided yet — not that the answer is small.

  1. 01overleaf-agent-review6★1 day—Browser extension that shows AI agent edit suggestions inside Overleaf with character-level diffs and per-item acceptance.
  2. 02kallilex3★28 daysliveDesktop writing assistant that checks spelling and offers AI-powered rewrites locally and privately.
  3. 03wordwarden1★todaylivehobbyBrowser and office extension that checks English spelling and grammar locally on the device while the user types.
  4. 04nodaysrammar1★6 dayslivehobbyBrowser extension that checks grammar and spelling on-device in multiple languages, keeping text private.
  5. 05local-writing-assistant0★18 days—hand-codedhobbyChrome extension that offers grammar and spelling checks via a local AI model, ensuring user text never leaves the computer.
  6. 06sophia0★6 days—Browser extension that provides spelling, grammar, word choice, and density feedback for writing, processing locally on the user's machine.
  7. 07slack-grammar0★3 days—hobbyDesktop tool that checks grammar and spelling in Slack drafts using a private local model and applies fixes without sending text to the cloud.
  8. 08correctify0★24 dayslivehobbyDesktop writing assistant that corrects spelling and grammar in any application using a keyboard shortcut and a user-chosen AI provider.
  9. 09nextcraft0★1 mo—hobbyBrowser extension that offers personalized writing assistance with ghost-text completions and an in-page prompt for any text field.
  10. 10WriteRight0★1 mo—hobbyBrowser extension that checks spelling, grammar, readability, and tone entirely on-device as a writing assistant with optional local AI rewriting.
  11. 11ImageLensPro---ClearAI0★11 mostale—Web platform that uses AI to detect and correct spelling, grammar, and contextual errors in images for content quality assurance.
  12. 12ReWrite - AI-Powered Grammar & Spelling Correction Chrome Extension0★unknownliveBrowser extension that uses AI to detect and correct grammar and spelling errors in text as users write online.
  13. 13Shift Language Corrector0★unknownliveai-builtChrome extension that automatically corrects language mix-ups for bilingual users while typing.
  14. 14SpellFix - One-Click Spelling & Grammar Fix0★unknownliveai-builtChrome extension that corrects spelling and grammar across websites with one click.

Ranked by traction, highest first, and paged 20 at a time — this is a window on the cluster, never the whole of it. Ties are broken by a stable id so a product cannot appear on two pages or fall between them. Browse every cluster.