Developer tools

Encode and decode URLs and Base64, format or validate JSON, generate UUIDs and work with HTML entities.

Encode text for safe use inside a URL.

Decode percent-encoded URL text.

Encode UTF-8 text to Base64.

Decode a Base64 string to UTF-8 text.

Validate and pretty-print JSON.

Remove unnecessary whitespace from valid JSON.

Check whether text contains valid JSON.

Generate random UUID v4 identifiers.

Convert special characters to HTML entities.

Convert HTML entities back to normal characters.

Generate random passwords with the length you choose.