How CRYMBL works
The essentials at a glance – encrypted sharing in just a few steps.
In three steps
Create content
Write a note or pick a file. CRYMBL encrypts everything right in your browser – before anything is sent.
Share the link
You receive a secure link. Only someone who has it can open the content – so share it confidentially.
Recipient decrypts
The recipient opens the link and the content is decrypted locally in their browser. Done.
Three ways to share securely
Notes
Pass on confidential text and credentials – encrypted end to end.
Files
Send documents securely – without unencrypted attachments lying around.
CrymblBox
Ask others to send you files securely – encrypted from the very first moment.
Security in brief
CRYMBL follows the zero-knowledge principle: everything is encrypted and decrypted in your browser. We only store ciphertext and cannot see your content, passwords or keys. This also means that if a key is lost, no one – not even us – can restore the content.
This is a short overview. Signed-in users will find more detailed help directly in the app.