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Correctify

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What Correctify is

Correctify is a free, open-source desktop app that corrects grammar, spelling, and punctuation while preserving writing style and formatting. Text can be entered in the app or selected in another application and sent for correction with a customizable global shortcut. Five styles are available: Grammar Only, Formal, Informal, Collaborative, and Concise. Users can define custom rules that apply to both in-app and shortcut-based corrections. Correctify supports OpenAI, Anthropic, Mistral, and OpenRouter, with users configuring their own provider API keys. OpenRouter Free selects an available free model for each request and requires a free account and API key, without a credit card. Premium provider models are described as pay-per-use. The project says keys are stored in the operating system credential vault and requests go directly from the device to the selected provider, without an intermediary server or data collection. It says text is not logged, stored, or tracked, while usage information is monitored locally. The interface supports English, German, French, and Turkish. Desktop apps are available for Linux, macOS, and Windows under the MIT License.

Who it suits

Correctify suits writers who want local desktop corrections with selectable styles, custom rules, and their own AI provider keys. It also fits users seeking an open-source tool with a free model option.

What it does well

  • Free and open source
  • Five writing styles
  • Custom correction rules
  • Supports four AI providers
  • API keys stored in credential vault

What to know first

  • Requires provider API keys
  • Premium models are pay-per-use
  • Browser builds do not persist keys
  • Accessibility permission needed for auto copy/paste

Verdict

Correctify combines shortcut-based desktop editing with configurable writing styles and providers. Its direct device-to-provider design and local handling appeal to privacy-conscious users, but setup requires provider credentials and permissions for some automation.

Facts from Correctify's own pages

AI providers
The README lists OpenAI, Anthropic, Mistral, and OpenRouter as supported providers. · github.com, 12 Oct 2026
App format
It is a menubar app that also supports correcting selected text from other apps with a customizable global shortcut. · tarikkavaz.github.io, 12 Oct 2026
Bring your own key
Users configure provider API keys, and the project describes premium models as pay-per-use. · tarikkavaz.github.io, 12 Oct 2026
Credential security
The README says API keys are stored in the operating system credential vault and API requests go directly from the device to the selected provider, without an intermediary server or data collection. · github.com, 12 Oct 2026
Custom rules
Users can define correction rules that apply to both in-app and global shortcut corrections. · tarikkavaz.github.io, 12 Oct 2026
Data handling
The project says API requests go directly from the device to the selected LLM provider and that it uses no intermediary server or data collection. · github.com, 12 Oct 2026
Desktop app
Yes · tarikkavaz.github.io, 21 Sept 2026
Free fallback
OpenRouter Free selects an available free model for each request, and requires a free account and API key with no credit card needed. · github.com, 12 Oct 2026
Free model option
OpenRouter Free selects an available free model for each request, and requires a free OpenRouter account and API key. · github.com, 12 Oct 2026
How it works
The app can correct text entered in the app or selected in another app using a customizable global shortcut. · tarikkavaz.github.io, 12 Oct 2026
License
The project is released under the MIT License. · github.com, 12 Oct 2026
Localization
The interface supports English, German, French, and Turkish, with automatic system-language detection and a manual override. · tarikkavaz.github.io, 12 Oct 2026
Notable limitation
The README says browser builds do not accept or persist API keys, and the homepage says auto copy/paste requires Accessibility permission. · github.com, 12 Oct 2026
Privacy
The homepage says Correctify does not log, store, or track text, and does not collect analytics or telemetry. · tarikkavaz.github.io, 12 Oct 2026
Purpose
Correctify corrects grammar, spelling, and punctuation while preserving writing style and formatting. · tarikkavaz.github.io, 12 Oct 2026
Style suggestions
Yes · tarikkavaz.github.io, 21 Sept 2026
Support
The README directs users to GitHub Issues for support. · github.com, 12 Oct 2026
Usage costs
The homepage says users pay only for what they use and describes premium provider models as pay-per-use. · tarikkavaz.github.io, 12 Oct 2026
Usage tracking
Token usage, costs, and performance are monitored locally, according to the project README. · github.com, 12 Oct 2026
Writing styles
It offers five styles: Grammar Only, Formal, Informal, Collaborative, and Concise. · tarikkavaz.github.io, 12 Oct 2026

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