Dzzz

Encode & hash On-device

Base64, URL, hex, SHA digests and JWT decoding — offline.

Operation
Direction
 
Input 0 chars · 0 words · 0 lines
Output

Paste on the left to start.

Paste above to start.

output.txt
0 bytes in · 0 chars out

Everything runs on your device. Nothing you paste is sent anywhere, and it's cleared when you close the tab.

Base64, URL, hex, SHA digests and JWT decoding — offline. Everything runs in your browser; nothing you paste is sent anywhere.

By Dzzz AI Updated

About this tool

What you provide

  • Text, Base64, hex, a URL or a JWT.

What you get

  • Encoded or decoded text, SHA digests and decoded JWT claims.

Limits

  • JWT signatures are never verified. No MD5.

How to use it

  1. Paste input

    Paste text, an encoded string or a JWT.

  2. Choose an operation

    Pick Base64, URL, hex, hash or JWT.

  3. Copy

    Copy or download the result.

Frequently asked questions

Does it verify a JWT?

No. It only decodes the header and payload on your device and says so; it never checks a signature.

Why is there no MD5?

Web Crypto does not provide MD5, and it is not safe for new uses, so only SHA digests are offered.