Store your files and photos, open them in your browser or in Finder, and share them with a link. Only you can see what’s inside.
Works like the drive you already use. Except nobody else can look inside.
Files and their names are encrypted on your device before they upload. What reaches us is ciphertext, which we can’t read or scan.
Your password and your keys stay on your device. We never receive them, which is also why we can’t reset your password for you.
A large quantum computer would break RSA and the other public-key schemes most services use to protect file keys. Coldest uses ML-KEM-768, the NIST post-quantum standard, for account keys and AES-256 for everything else. Files you upload today are already covered.
Photos, video, music, PDFs and code open in the web app and are decrypted in the tab. Video starts playing before it has finished downloading.
The Mac app puts Coldest in the Finder sidebar, next to iCloud Drive. Every file is listed, but a file only takes up space on your Mac once you open it.
Rename or move a file in Finder and the change uploads encrypted. Changes from your other devices show up on their own. Before a flight, choose Keep Downloaded on a folder and it stays on your Mac.
Send a link to a file or folder and the other person opens it in their browser, without an account. The key travels in the link itself, so we still can’t read the file. You can set a password or an expiry date, and turn the link off later.
Saved over the wrong file? Earlier versions are kept for 30 days and you can restore one in a click. Deleted files stay in the trash until you empty it.
Every plan has the same apps and features. They differ only in storage.
| Plan | Storage | Monthly | Yearly |
|---|---|---|---|
| Free | 2 GB | Free | Free |
| Plus | 500 GB | €3 | €30 |
| Pro | 2 TB | €8 | €80 |
| Max | 10 TB | €32 | €320 |
Prices in EUR, including VAT.
The Mac app adds Coldest to Finder. You see all your files straight away, and each one downloads and decrypts when you open it. That means 2 TB in Coldest doesn’t need 2 TB free on your Mac. To keep a folder available offline, choose Keep Downloaded.
Yes, on any plan. Download a folder as a zip, export everything from Settings, or drag files out of Finder.
Use the recovery key you saved at sign-up to set a new one. We never see your password, so we can’t reset it for you. Keep the recovery key somewhere safe.
On servers in the EU, under European privacy law. They’re already encrypted when they arrive.
It means we don’t have your keys. Your files are encrypted on your device and we store the result with no way to open it.
Most encryption in use today relies on maths that a large quantum computer could break. Coldest uses algorithms chosen to survive that, so a file you upload now should still be private once those machines exist.
No card needed. If it isn’t for you, export your files and go. Get 2 GB free