Not Grammarly

6.3easy start · #68of 88
in Grammar checkers

Runs on Linux, Mac, Windows.

Not Grammarly is ranked #68 of 88 in grammar checkers on The Geeks Club. It runs on Linux, macOS, Windows. There is a free plan.

Not Grammarly plans and pricing

Not Grammarly Free Requires your own OpenAI API key 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

Product: Not Grammarly is a lightweight desktop app for improving writing.
Grammar checking: It provides grammar corrections with detailed explanations and scoring.
Text refinement: It offers formal, informal, and concise style options.
Languages: It supports English, Spanish, Portuguese, and more.
Appearance: It offers light and dark themes and transparency controls.
Shortcut: Ctrl+Shift+G analyzes clipboard text from any application.
Window mode: An always-on-top mode keeps the app accessible while working in other applications.
AI provider: The project says it uses OpenAI to improve writing.
API key: Users need to provide their own OpenAI API key.
macOS availability: Downloads are offered for Apple Silicon Macs with M1, M2, or M3 chips as DMG and ZIP files.
Windows availability: The page lists Windows 10/11 and marks it as coming soon.
Linux availability: The Linux version is listed as coming soon.
Support: The site links to GitHub issues and a Buy Me a Coffee support page.
License: The project README identifies the software as MIT licensed.
Price from: Free

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