Base64 Decoder - Free Online Tool

Encode text or files to Base64 and decode Base64 strings back to text. Supports Unicode and binary data.

Parse JWT tokens online and inspect the header, payload, claims, and expiration fields instantly.

Decode percent-encoded URLs and query strings so you can read request data clearly.

Encode and decode URLs and query parameters. Handles percent-encoding for safe URL transmission.

Convert HTML entities like & < > to their escaped forms and vice versa.

Decode and inspect JWT tokens. View header, payload, and signature without verification.