Developer tools — free online

Free Developer tools that run in your browser. Fast, mobile-friendly, and available in Arabic and English.

Convert text or files to Base64, and turn Base64 back into a file — including data URIs.

Compute MD5, SHA-1, SHA-256, SHA-512 and more from text — entirely in your browser.

Format, validate and minify JSON with precise error positions — nothing leaves your browser.

Turn a link, text, WiFi password or phone number into a scannable QR code.

Test a regular expression against your text — with match positions, groups, and a warning when the pattern can freeze the browser.

Convert Unix timestamps to dates and back, in any time zone — with ISO 8601, RFC 2822 and Hijri output.