Encoding tools
Base64, URL and HTML encoding, both directions
Encoding bugs are quiet bugs — a stray percent sign or an unescaped angle bracket breaks things far from where it was introduced. These converters run in your browser so you can safely round-trip values and see exactly what changed.
6 Encoding tools
Base64 Encoder
Encoding
Encode text or files to Base64, with URL-safe and MIME options.
Runs in your browser
Base64 Decoder
Encoding
Decode Base64 back to text or download it as a file.
Runs in your browser
URL Encoder
Encoding
Percent-encode a value for use in a URL path, query or form body.
Runs in your browser
URL Decoder
Encoding
Decode percent-encoded URLs and expand query parameters into a table.
Runs in your browser
HTML Encoder
Encoding
Escape HTML special characters to prevent broken or unsafe markup.
Runs in your browser
HTML Decoder
Encoding
Convert HTML entities back into the characters they represent.
Runs in your browser