Write
A clean Markdown editor that autosaves as you type — end-to-end encrypted.
Image2200 × 1296 px
Think
AI writing help: select any text and make it clearer, sharper and easier to read.
Focus
A focus timer with work/break cycles and focus music to keep your rhythm.
AI writing help
A second pair of eyes on your writing
Select any text and make it clearer, sharper and easier to read — your Markdown intact.
- Sharpen clarity — turn rough notes into clear, readable prose in a click.
- Fix grammar & flow — smooth out awkward phrasing without changing your voice.
- Polish the tone — keep it professional, warm or concise — however you need it.
Image1440 × 900 px
$0
Forever free
The full Cooper workspace — notes, focus timer, AI writing help and focus music — with nothing locked away and no card required.
The promise
Premium tools, zero cost
- 100% free — every feature, available to everyone, at no cost.
- Private by design — your notes are end-to-end encrypted and never sold.
- No ads or tracking — a calm space that works for you, not advertisers.
- Installable & fast — add it to any device and launch into a snappy workspace.
FAQ
Questions, answered
Is Cooper really free?
Yes — Cooper is 100% free. Every feature is available to everyone at no cost, and no credit card is required to get started.
Do I need an account?
You'll create a free account so your notes and focus sessions sync securely and are always there when you come back. It takes less than a minute.
Are my notes private?
Absolutely. Your notes are end-to-end encrypted on your device before they're saved, so only you can read them — not even we can.
Can I use Cooper on my phone?
Yes. Cooper works in any modern browser on desktop, tablet and phone, and you can install it to your home screen or desktop for a native-app feel.
How does the AI writing help work?
Select any text in your notes and choose Enhance. Cooper refines it for clarity, grammar and flow while keeping your meaning and Markdown intact.
What languages are supported?
Cooper is fully available in English and Spanish, with light and dark themes, so you can make it feel like your own.