Grammify
Open source Grammarly alternative, using your own OpenAI API
Grammify launched on March 13, 2023 with 54 votes, #1,655 of 5,007 launches that month and more than 50% of that year's launches. The site was still online in September 2026, 3 years on.
What it does
Grammify is a free, open-source tool that uses OpenAI's natural language processing to help improve your writing by detecting and correcting grammar, spelling, punctuation, and other errors.
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