Developer & Coding Tools

Pick a colour once and read it in every format designers and developers need: HEX, RGB, HSL, HSV and CMYK, […]

Paste messy JSON and get it back readable, minified or validated. Errors are reported with the exact line and column

Percent-encode text so it survives inside a web address, or decode an encoded link back into something readable. Includes a

Encode text or a whole file to Base64, and decode Base64 back to readable text. Unicode is handled correctly, and

Create RFC 4122 identifiers for databases, API keys, test fixtures and log correlation. Version 4 UUIDs use your browser’s secure

Produce cryptographic checksums for text or for a file on your device. Use them to verify downloads, compare backups or

Drop in a logo and get a complete favicon set: every PNG size modern browsers ask for, a multi-resolution ICO

Paste a Base64 string or a full data URL and get the picture back. The format and dimensions are detected

Turn any image into a Base64 data URL you can paste straight into HTML, CSS, JSON or an email template.