In every app
Word, Outlook, browsers, chat apps, notepads… Select text in any program and fix it with a shortcut.
Windows app
Correctify for Windows: the AI spell checker in every program
Word, Outlook, Teams, the browser, a form: select your text, press Ctrl + Alt + C, and the corrected version replaces the original. Free, no account, with your own AI key.
597 downloads
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Digitally signed installer
Since version 1.8.0, the installer is digitally signed and timestamped with a certificate issued by a certificate authority. During installation, Windows shows the publisher “Open Source Developer ANTHONY LACROUX”: if you see that name, the file really comes from here and has not been tampered with. If Windows SmartScreen still shows “Windows protected your PC” during the first few weeks, while the new certificate builds its reputation, click “More info,” then “Run anyway.”
Signature, SmartScreen, checks: the full explanation in 2 minutes
Since version 1.8.0, the installer is digitally signed and timestamped with a certificate issued by a certificate authority. During installation, Windows shows the publisher “Open Source Developer ANTHONY LACROUX”: if you see that name, the file really comes from here and has not been tampered with. If Windows SmartScreen still shows “Windows protected your PC” during the first few weeks, while the new certificate builds its reputation, click “More info,” then “Run anyway.”
Signature, SmartScreen, checks: the full explanation in 2 minutes
See the app in action
Select the text below, then press Ctrl + Alt + C. A faithful simulation of the app: no connection or key required.
Select the text, then press Ctrl+Alt+C
Hi, following our call, I confirm the meeting on tuesday. Dont hesitate to reach out if you need anithing.
What the app does
Fix with one shortcut
Highlight your text, press the shortcut, and the corrected version instantly replaces the original, right where you were writing.
Multiple tones to choose from
On top of plain correction, pick a tone from the menu: professional, courteous, concise, formal or simplified. Your text is rewritten in the style you want, still with a single shortcut.
Reliable replacement, no matter what
Even if you switch windows or click elsewhere during correction, the fixed text is placed back exactly where it belongs as soon as you return.
Cancel in one click
Started a correction by mistake? The “Cancel” button on the indicator stops everything: nothing is changed, and your clipboard is left untouched.
English or French
The interface switches between English and French in one click; the language of your text is detected automatically: you’re corrected, never translated.
Automatic updates
The app checks for and installs new versions on its own, in the background: you always have the latest version without lifting a finger.
Your key, your AI, your model
Google Gemini, OpenAI (ChatGPT), Anthropic (Claude), Mistral, OpenRouter, or a local model with Ollama and LM Studio. You pick the provider and the model in the options. No intermediate server, no data collected.
Set up in 2 minutes
- 1
Download the app
Click “Download for Windows” and get the installer.
- 2
Run the installer
Open the downloaded file and follow the few setup steps.
- 3
Paste your API key and fix
Enter your key once, then select text in any app and use the shortcut.
70+ antivirus engines
Digitally signed, verified by VirusTotal
The installer is scanned by 70+ antivirus engines through VirusTotal. The report is public: view it whenever you like, and check for yourself that the file you downloaded matches the one that was analyzed using its SHA-256 hash shown below.
Digital signatureThe installer is signed with a code-signing certificate issued by the certificate authority Certum after verifying the author’s identity, and timestamped: the signature stays valid even after the certificate expires. To check it yourself: right-click the downloaded file, “Properties,” then the “Digital Signatures” tab. The signer name must be exactly the one below.
Publisher shown by Windows
Open Source Developer ANTHONY LACROUX
File SHA-256 hash
11f6d1c82d0844251a5d81151d415a8f2684981ba83c2b8148425062ee8b83de
Pick your AI
Correctify detects the provider from your key: a Google key (AIza…) calls Gemini, an OpenAI key (sk-…) calls ChatGPT, and an Anthropic key (sk-ant-…) calls Claude. You stay in control of the service and the cost.
Privacy
No intermediate server, no data collection. Your key and your text only go to the provider you chose.
Learn moreFrequently asked questions
Which Windows version do I need?
Windows 10 or Windows 11, 64-bit. The app is lightweight and installs in seconds.
Is the app free?
Yes. Like the extensions, the app is free and ad-free. You use your own API key with the AI provider of your choice.
Is my text stored anywhere?
No. The selected text is sent directly to the AI provider matching your key, then the correction comes back. Nothing is kept on my side.
Can I choose the correction tone?
Yes. On top of the standard correction, which fixes your text without rewriting it, a menu offers several tones: professional, courteous, concise, formal or simplified. The chosen tone is remembered and applied to every correction, and you can change it anytime.
What languages is the app available in?
The interface comes in English and French; you switch between them in the options. The language of your text is detected automatically on every correction. You can also force it, always French or always English, from the options or the tray menu.
Does the app update itself automatically?
Yes. It regularly checks for new versions and installs them on its own in the background, then notifies you once the update is applied, with no need to re-run the installer.
What if I switch windows during correction?
No problem. The app remembers the original window and selection: if you move to something else while it works, the corrected text is applied in the right place as soon as you return to the window.
Is the installer signed? What if Windows says “Windows protected your PC”?
Yes: since version 1.8.0, the installer is digitally signed and timestamped. During installation, Windows names the publisher “Open Source Developer ANTHONY LACROUX”, which guarantees the file comes from here and has not been altered. SmartScreen may still show its warning during the first few weeks, while the brand-new certificate builds its reputation: check the publisher name, then click “More info” and “Run anyway.”
And in the browser: the extensions
The extensions add a “Fix the text” entry to the right-click menu, in your browser or in Thunderbird. You select, you fix, the text is replaced in place. They are free, need no account, and work on Windows, Mac and Linux with your own API key.
