Technology

Free Depth of Field (DOF) calculator for photographers. Compute near/far focus limits, hyperfocal distance, DOF distribution, angle of view, field of view, bokeh intensity, and diffraction warnings for any camera sensor and lens combination.

Free JSON Beautifier and formatter — paste or upload raw, minified, or broken JSON and instantly get clean, indented, syntax-highlighted output with sort keys, auto-fix, comment stripping, and size metrics.

Free online JSON Formatter, Validator, and Beautifier. Instantly format, minify, validate, and repair JSON data in your browser — 100% client-side, nothing is sent to a server.

Free JSON Minifier — compress, validate, and reduce JSON file size instantly in your browser. Strip whitespace, remove comments, and escape Unicode with zero server uploads.

Free online JavaScript Object Notation (JSON) validator — instantly check if your JSON is valid, see exact error locations, beautify or minify output, auto-fix common mistakes, and explore structure with a collapsible tree view. No data leaves your browser.

Free online Regular Expression (Regex) Tester and debugger. Test JavaScript regex patterns in real time with match highlighting, capturing groups, substitution preview, validation list mode, cheatsheet, and common patterns library — all client-side.