opengrammar

The premium Open Source alternative to Grammarly

🎯 Best for:Users who require grammar checking but cannot upload sensitive documents to the cloud.
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Apache-2.0License

What is opengrammar?

A privacy-centric alternative to Grammarly and ProWritingAid. It processes text locally or on private servers to provide syntax and style corrections without data harvesting.

Tech Stack
TypeScriptOffice Suite & Docs

Why opengrammar?

  • Complete data privacy
  • Self-hosted API
  • No recurring fees

Limitations

  • Lower accuracy than GPT-4
  • Resource intensive
  • Limited browser support
3/7/2026
Last Update
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Forks
0
Issues
Apache-2.0
License
Financial Leak Detected

Stop the "SaaS Tax"

Your team could be burning cash. Switching to opengrammar instantly boosts your runway.

Competitor Cost
-$1,440
/ year (est. based on Grammarly)
Self-Hosted
$0
/ year
Team Size10 Users
150+
SAVE 100%

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