Everyday developer tools, in one place.

Prettify or minify JSON with your preferred indentation.

Validate JSON in the browser with line and column errors.

Parse, format and validate XML documents locally.

Structural diff between two JSON documents.

Readable node-level diff between two XML documents.

Add or subtract days from any date, instantly.

Working days, available hours and chargeable hours per month.

Unicode-safe Base64 encoding and decoding.

Line-by-line diff of two blocks of text.

Find duplicate lines and count occurrences in a list.

Free-size cropping, zoom and rotate — fully client-side.