Developer Tools

Format JSON, decode Base64 and URLs, and strip HTML. Everything runs in your browser unless a tool says otherwise.

Format and validate

JSON Formatter Format, validate and repair JSON, with the exact line of every error.

Encode and decode

Base64 Decode and Encode Decode Base64 to text, images or files, or encode text.
URL Decode and Encode Decode %-encoded links and list their parameters, or encode text.

Convert

HTML to Text Strip HTML tags and keep paragraphs, lists and links.