Compare software

ProWritingAidGrammarly
Freemium

Free to start, with a paid version that unlocks the full toolkit.

 Freemium

Free to sign up, with paid plans for more features.

Web, Browser extension Web, Browser extension
  • Style and line-editing feedback beyond basic grammar
  • Story planning and critique tools for fiction
  • Grammar, spelling and clarity checks as you type
  • One-click paragraph rewrites and tone suggestions
  • Full feature set requires a paid plan
  • Geared toward fiction, less so toward other writing
  • Requires an account
  • Text is processed on Grammarly's servers
Downloadable app, Web application, Browser extension Hosted service, Browser extension
Closed source Closed source
License not stated License not stated
Account needed Account needed
Not stated if it works offline Not stated if it works offline

Checked September 23, 2026

Checked September 23, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.