Keyboard-first AI for Windows
Select any text, press a shortcut, and get a client-ready result inside the app you're already using. No copy-paste. No tab switching.
Hi Sarah,
A quick update: the analysis is nearly complete. We need one additional day to verify the final figures before sharing it with you.
I will send the completed analysis tomorrow afternoon. Best regards, John
Works across Windows apps
One deliberate workflow wherever you write
Runs only when you trigger it
No continuous monitoring of your typing
Does not store your text
Processed in memory with store: false
60-second product demo
Correct, Draft Email, Ask, and your own instructions follow the same pattern: the result comes back where your work already lives.
Every extra interface adds another interruption. Keystro brings the useful action into the workflow you already have.
Your focus moves through every stop
Your focus never leaves the app
Same task. One shortcut. Back to work.
Works inside every app you already use
Each shortcut is purpose-built for a specific need. No generic prompts. Targeted, instant, in place.
Four ways Keystro fits into the writing you already do.
Hi Sarah,
A quick update: the analysis is nearly complete. We need one additional day to verify the final figures.
I will send the completed analysis tomorrow afternoon.
Best regards, John
No copy-paste. No tab-switch. One deliberate shortcut.
Focus comes first. Speed and professional consistency follow.
Keystro acts inside the app you are already using, without sending you through another AI workflow.
Add // followed by any instruction after your selection. Translate, shorten, change tone, expand — the same Correct shortcut does it all.
Example 1 of 5 · Translate
Hello Sarah,
I wanted to confirm that we have completed the analysis and will send you the results tomorrow afternoon.
Works in any language, with any instruction. Translation, tone change, shortening, expansion — all through //.
Keystro applies the professional context you chose—your role, vocabulary, and writing preferences—to the shortcuts where it helps.
Set your professional context once. Use it consistently wherever you write.
Different tools solve different jobs. Keystro is for the repeated text actions that should not pull you away from your work.
•••01AI tools
Open-ended conversations
Keystro
No provider selection, API key, or local model setup. Your profile, vocabulary, and prompts are ready whenever you sign in.
Keystro does not monitor what you type. It processes only the text you deliberately select, returns the result, and immediately discards the content.
Only the text you choose
Protected in transit
Back to the same app
Not kept by Keystro
Used only to create and secure your account through Clerk. Keystro does not request access to Gmail, Drive, Calendar, Outlook, OneDrive, or your files. Privacy Policy
Data inventory, infrastructure, and controls
Security questions from your IT team? Contact us
The essentials before you make Keystro part of your workflow.
Keystro works across Windows apps and editable text fields where you can select text—including Outlook, Teams, Word, Slack, Gmail, and your browser. If an app cannot accept direct replacement, Keystro shows the result in a compact window for manual copying.
Those tools are destinations, continuous assistants, or integrations tied to specific ecosystems. Keystro is an action layer across your Windows apps: select text, press a shortcut, and keep working without switching tabs or giving access to your mailbox, calendar, or files.
No. Keystro does not continuously read or monitor your writing. It processes only the text you deliberately select when you trigger a shortcut.
Every AI call includes store: false. Keystro never writes your text to its database, logs, or a persistent cache. We record usage metadata such as the action type and character count, never the text itself.
Keystro supports Windows 10 and Windows 11 today. A macOS version is planned for a future release.
Yes. The Free plan includes 50 AI actions per month and requires no card. Paid plans are monthly with no commitment, and you can delete your account and associated data directly from your profile.
Keystro currently uses GPT-5.6 Luna. The model is configured centrally so Keystro can keep the service current without requiring a new desktop release.
No. Keystro processes text through our secure backend, so an internet connection is required.
Keystro supports major languages including French, English, Spanish, German, Italian, Portuguese, and Dutch. You can also add a // instruction to translate selected text.
Keystro is not yet code-signed, so Windows SmartScreen may warn you the first time you run the installer. Download Keystro only from keystro.ai. Code signing is planned as adoption grows.
Still have questions? Contact us
Start free and make Keystro a reflex. Upgrade when you can't imagine working without it. Cancel anytime.
For professionals who write all day.
per month
Upgrade to Pro in the dashboard
Build the shortcut habit at your own pace.
per month
Free forever · No card required
For professionals who write all day.
per month
Upgrade to Pro in the dashboard
For high-volume workflows and deeper personalization.
per month
Upgrade to Pro+ in the dashboard
Prices in EUR. VAT not applicable (art. 293 B CGI) — the price you see is the price you pay. Cancel anytime.
Bring AI into the apps you already use—without copy-paste, tab switching, or another tool to manage.
Download free for WindowsWindows 10/11 · Install in 60 seconds · Cancel anytime
