HTML Entity Encode / Decode - Free Online Tool

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

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

Convert Unicode characters to escape sequences and back. Supports \u and \U formats.

Format and indent HTML code for better readability. Supports custom indentation.

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

Decode Base64 strings online to inspect text payloads, credentials, and encoded response bodies.