Quickly encode or decode text and data locally.
The Encoder & Decoder is a multi-purpose conversion utility. It allows you to transform text into various formats like Base64, URL-safe strings, and HTML entities, or reverse those transformations back to plain text.
All conversions are performed within your browser. We use the CryptoJS library for robust Base64 handling and native JavaScript functions for URL and HTML entity processing. Your input data stays on your machine.
Developers frequently need to encode data for transmission. Base64 is used for embedding images or binary data; URL encoding ensures characters don't break web addresses; and HTML entity encoding helps prevent security vulnerabilities like XSS.