Encoding tools

Encode text or files to Base64, with URL-safe output.

Decode Base64 back to readable text.

Percent-encode text for safe use in URLs and query strings.

Decode percent-encoded URLs and query strings.

Escape HTML entities so markup renders as text.

Convert HTML entities back into characters.

Convert between characters, code points and escape sequences.

Decode JWT header and payload locally. Signatures are not verified.