Best alternative software

Best Open Source Grammarly Alternatives

AI-powered writing assistant that checks grammar, spelling, punctuation, and style to help you write clear, mistake-free content across all platforms.

Grammarly2 tools

Open-source tools

Showing 2 of 2 curated projects from this topic.

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LanguageTool

Check grammar, punctuation, and spelling errors instantly with AI-powered technology. Supports 30+ languages with browser extensions and desktop apps.

14,427

LGPL-2.1

Alternative to: Grammarly

Harper

Open source grammar checker that analyzes your writing quickly while keeping your data completely private and secure on your device.

10,415

Apache-2.0

Alternative to: Grammarly