Gramma

6.7easy start · #55of 88
in Grammar checkers

Runs on api, Linux, Mac, self-hosted, Web, Windows.

Gramma is ranked #55 of 88 in grammar checkers on The Geeks Club. It runs on API, Linux, macOS, Self-hosted, Web, Windows. There is a free plan.

Gramma plans and pricing

Gramma Free Open-source command-line grammar checker · ISC license · Uses LanguageTool remote API or local server github.com · 12 Oct 2026

MerciApp Lesson 19.2 Sapling Lesson 29.1 LanguageTool Lesson 38.9 iGrammar Lesson 48.9 Microsoft Editor Lesson 58.8 Grammarly Lesson 68.7

Purpose: Gramma is a command-line grammar checker that provides advanced grammar checks through LanguageTool.
Text formats: It supports plain text and Markdown.
Interactive editing: Its check and listen commands can show potential mistakes and offer interactive fixes.
Git integration: It can add a commit-msg hook to check commit messages and works with non-default Git hook paths such as Husky.
LanguageTool options: Gramma can use the default remote LanguageTool API, a local LanguageTool server, or a custom API endpoint.
Local processing: The optional local LanguageTool server requires Java 1.8 or higher and Gramma can manage that server automatically.
Privacy: The README says the default LanguageTool API generally does not store texts and suggests a local server or custom endpoint for extra caution.
Configuration: Users can set global and project-specific configuration, including language, dictionary words, and enabled rules.
Languages and rules: The README lists support for multiple language variants and configurable checks including grammar, punctuation, style, and typos.
Editors: The README describes using Gramma inside Vim and Neovim through terminal commands.
Developer API: Gramma exposes JavaScript check and replaceAll methods and documents CommonJS, ESM, and browser bundles.
Downloads: The README provides standalone binary downloads for Linux 64-bit, macOS, and Windows 64-bit, as well as npm installation.
Price from: Free

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