Tools
Everything runs in your browser. No data is sent anywhere.
Indent, validate or minify JSON right in your browser.
Encode and decode Base64 without sending anything online.
Generate cryptographic UUID v4, copy in one click.
Encode and decode URL components, parameters and special characters.
Compute SHA-1, SHA-256, SHA-384 and SHA-512 without sending anything.
Inspect the header and payload of a JSON Web Token, without verifying the signature.
Convert a Unix timestamp to a readable date, and back.
Create a QR code from text or a URL, downloadable as PNG or SVG.
Interactive HSL wheel with live HEX, RGB, HSL and OKLCH conversions.
Strong passwords with custom length, uppercase, digits and symbols.
Compose one or several CSS shadows with a live preview.
Build linear, radial and conic gradients with a live preview.