Base64, URL and JWT decoder

Paste anything encoded and read what it says.

InstantPlain English + technicalFree, no sign-up
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About the Base64 / URL / JWT decoders

Decode or encode Base64, URL percent-encoding and hex, and decode JSON Web Tokens (JWT) to read the header, claims and expiry.

Every result comes in two styles: plain English for everyone, and the exact technical detail for engineers, with the raw JSON one click away.

Questions

Don’t paste live tokens for real accounts. We don’t store them, but treat tokens like passwords.