JSON / Base64 / URL Formatter & Encoder

Format, validate, encode and decode in one place. 100% private: everything runs in your browser.

Paste your JSON
Result
Input
Output

UTF-8 safe: non-English text encodes correctly. Decoding shows an error if the input is not valid Base64.

Input
Output

Encode uses encodeURIComponent (for a single value). Use Parse URL to split a link into parts and query parameters.