Base64URL Decoder Online
Free online Base64URL decoder that reads JWT headers and payloads without extra padding hassle.
Ad Space
Free online Base64URL decoder that reads JWT headers and payloads without extra padding hassle.
How it works
This tool restores URL-safe Base64 into a decodable form and outputs the decoded text. It helps inspect JWT segments and tokens.
Example
Input:
eyJhbGciOiJIUzI1NiJ9
Output:
{"alg":"HS256"}FAQ
Why is padding (=) missing?
Base64URL often omits padding by convention. Decoders can infer padding based on the length.
Can Base64URL decode to binary data?
Yes. The decoded content may be binary; text output assumes UTF-8 representation.
Ad Space
Related Tools
- Base64 Encoder OnlineFree online Base64 encoder that turns plain text into ASCII-safe strings for APIs, headers, and transport.
- Base64 Decoder OnlineFree online Base64 decoder that restores plain text and helps inspect encoded API or token payloads.
- File to Base64 Encoder OnlineFree online encoder that reads small files and outputs Base64 for data URLs, tests, and API mocks.
- Base64URL Encoder OnlineFree online Base64URL encoder for JWT segments and tokens that must stay safe inside URLs.