Developer tools

The small things you reach for daily — JSON, hashes, tokens, colours.

Tools

27 tools
QR code generator Turn a link or a piece of text into a QR code.
Format JSON Make messy JSON readable, or squeeze it down.
Base64 Encode text or a file to Base64 and back again.
Password generator A random password at the length and mix you want.
Hash generator MD5, SHA1, SHA256 and SHA512 from text or a file.
UUID generator Random unique identifiers, as many as you need.
URL encode Encode or decode text for safe use in a web address.
Colour converter HEX, RGB, HSL, contrast checking and a range of shades.
JWT decoder Read what is inside a token — for debugging, signature not checked.
JSON to CSV Turn an array of JSON objects into a CSV table.
CSV to JSON Turn a CSV table into clean JSON.
JSON to YAML Turn JSON config into readable YAML.
Format XML Indent compressed XML so you can actually read it.
Format SQL Make a long query readable.
Minify CSS Strip spacing and comments to make the file lighter.
Minify HTML Remove excess whitespace and comments from HTML.
Escape HTML Make special HTML characters safe, or turn them back.
Number base converter Move between binary, octal, decimal and hexadecimal.
Timestamp converter Turn a Unix timestamp into a readable date, and back.
Parse a URL Break a web address into scheme, host, path and parameters.
Escape for regex Make text safe to drop inside a regular expression.
HTTP status codes What 404, 502, 429 and the rest actually mean.
Meta tag generator Build your SEO and social sharing tags in one go.
robots.txt generator Build a standard robots.txt for your site.
CSS shadow builder Dial in a box-shadow and copy the code.
CSS gradient builder Build a linear or radial gradient and take the code.
Border radius builder Set border-radius for each corner and copy the result.