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Correctify

Free#45 of 88 in Grammar Checkers

Correctify: A flexible desktop grammar checker for users comfortable managing AI provider keys. Ranked #45 of 88 in Grammar Checkers by our editors (4.2/10); pricing: Open source; best for desktop users wanting open-source AI correction.

4.2/10Editor score

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At a glance

Editor score
4.2 / 10
Pricing
Open source
Best for
Desktop users wanting open-source AI correction
Paid from
Free
Facts checked
21 Sep 2026

Where it wins
- Works across Windows, macOS, and Linux
- Supports OpenAI, Anthropic, Mistral, and OpenRouter
- Combines custom rules, styles, shortcuts, and usage tracking
Where it doesn't
- Requires users to provide API keys
- No browser or mobile access
- Interface localization covers four languages

Our verdict on Correctify

Correctify is an open-source desktop application for correcting grammar, spelling, and punctuation on Windows, macOS, and Linux. It is aimed at desktop users who want AI-assisted writing correction while retaining their writing style and formatting. Five selectable writing styles, custom correction rules, global keyboard shortcuts, and automatic copy-and-paste support make it suitable for editing text across desktop applications rather than working only inside a single editor.

Its provider support is a central part of the product. Users can connect OpenAI, Anthropic, Mistral, or OpenRouter, including free-model options through OpenRouter. This gives Correctify a broader AI-provider fit than a tool tied to one model service. Local usage and cost tracking can help users monitor activity, while OS-level API-key storage and encrypted credential storage address the handling of provider credentials. The app also supports English, German, French, and Turkish interface localization.

Correctify fits users who prefer an open-source desktop workflow and are comfortable supplying their own API keys. The main trade-off is its platform scope: it is designed for Windows, macOS, and Linux, with no browser or mobile access. That makes it less suitable for people who need correction across phones, tablets, or web applications without a desktop app. Users who want provider flexibility, custom correction behavior, and keyboard-driven editing should consider Correctify; those seeking a browser-first or mobile grammar checker should choose a product built for those environments instead.

Your product? Our editors can test Correctify in depth and publish a review, labelled as paid · from $149/mo →

Correctify pricing

Plans Open sourceFree Free to use — no paid tier required for the core job.

See plans on tarikkavaz.github.io

Correctify fact sheet

Free plan	Not verified
Paid from	Free
Browser extension	Not verified
Desktop app	Yes
Mobile app	Not verified
Style suggestions	Yes
Tone detection	Not verified
Languages supported	Not verified
Deployment	Desktop
Platforms	Windows, macOS, Linux
Support	Community
Built for	Solo, Small business (editorial estimate)
Integrations	4 integrations: OpenAI, Anthropic, Mistral, OpenRouter
Pricing	Open source
Website	tarikkavaz.github.io
Facts checked	21 Sep 2026

Correctify integrations

Correctify lists 4 integrations on its own site.

OpenAI
Anthropic
Mistral
OpenRouter

Alternatives to Correctify

See all Correctify alternatives →

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Featured on iTechGuides

Correctify is listed in our Grammar Checkers directory. Add the badge to your site — it links back to this page.

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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

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Last updated 7 Oct 2026 · How we research and update