All tools

16 free tools that run entirely in your browser. Nothing is uploaded, there is no account, and no output is watermarked.

Image Tools

Convert, compress and resize images in your browser.

Convert images between formats with drag and drop. Nothing is uploaded.

Pick colours, build palettes and check accessibility.

Eyedrop any colour, get its hex code, and prove the palette is readable.

Paste CSS and watch it render. Build gradients and shadows by dragging.

Format, encode, convert and generate - all client-side.

Format, minify and validate JSON with exact line and column errors.

Encode and decode Base64 for text and files, with correct UTF-8 handling.

Percent-encode, decode, build query strings and dissect any URL.

Convert JSON to CSV and back, flattening nested data with dot notation.

Generate cryptographically secure UUID v4 or time-ordered v7 in bulk.

Create custom QR codes as PNG or SVG, with logo, colours and error correction.

Convert Unix timestamps to readable dates and back, in UTC and your local time.

Strip HTML comments and whitespace and see the byte savings instantly.

Strip CSS comments and whitespace, and shorten colours and units safely.

Mangle names and compress JavaScript with terser, entirely in your browser.

Test regular expressions with match highlighting, group breakdown and flags.

Build clean HTML and CSS boilerplate from a form and copy it straight into your project.

Inspect JWT headers, claims and expiry locally. The token never leaves your device.