Desktop writing assistant

QuAI

Select text in any app, press a shortcut, and turn rough writing into clear writing without opening a browser tab.

Download for Mac Windows x64 Windows ARM64

Works in your apps Review before replacing No account required

Mac users open the download and drag QuAI to Applications. Windows users choose x64 for most PCs or ARM64 for Windows on Arm.

Mail Slack QuAI ready in the menu bar

Proofread

Original

I just want to make this email sounds more clear and professional.

Select text in any app

QuAI

I’d like to make this email sound clearer and more professional.

Review, refine, or apply

How it works

Use QuAI without changing apps.

Select text anywhere

Highlight a sentence, paragraph, email draft, chat message, or document section.

Press your shortcut

Open QuAI from your keyboard shortcut and choose the writing style you need.

Review and apply

Check what changed, refine the result if needed, then copy it or replace the original.

Built for repeated use

Everything you need for everyday writing.

Proofread and rewrite

Fix grammar, make writing sound more professional, shorten text, or expand rough notes.

Translate quickly

Turn selected text into another language from the same shortcut you use for proofreading.

Review every change

Compare the original and improved version side by side before replacing anything.

One-step shortcuts

Assign your favorite actions to hotkeys when you want proofreading or rewriting to happen instantly.

Your choice of AI

Use online AI with your own key, or download an offline model for private local writing help.

Custom writing styles

Create and reorder your own styles so QuAI matches the way you write every day.

Privacy by default

Your writing stays under your control.

Offline mode can process writing on your device.

Online AI is optional and only works after you add your own key.

Usage analytics are off by default and never include your writing.

Read the privacy policy

Download

Install QuAI in a few minutes.

Mac

Download for macOS

Download the Mac file.
Open it and drag QuAI to Applications.
Launch QuAI and follow the setup guide.

Download for Mac See release notes

Windows

Download for Windows

Download the Windows setup file for your PC architecture.
Run the installer.
Open QuAI from the Start menu or system tray.

Windows x64 Windows ARM64 See release notes

Contact

Need help with setup or usage?

Open a support issue and describe what happened. Please do not include private writing, screenshots with sensitive content, or API keys.

Get Support