Generators

Generate harmonious color schemes — complementary, triadic, analogous, split-complementary, tetradic, and monochromatic.

Generate a full 50–950 shade scale from one base color — Tailwind-style tints and shades for design systems.

Build linear, radial, and conic CSS gradients with live preview, custom stops, and one-click copy.

Generate iOS and Android app icon PNG sizes from one logo — free, private, in your browser.

Generate favicon.ico, PNG favicons, and apple-touch-icon from a logo — free, in your browser, no upload.

Generate SHA-1, SHA-256, SHA-384, or SHA-512 digests in your browser with Web Crypto.

Compute HMAC-SHA digests locally with configurable key/message encodings, output formats, and optional timing-safe compare.

Build and sign JWTs locally with HS256/384/512 (or unsigned none), claim presets, and editable header/payload JSON.

Generate classic placeholder copy as paragraphs, sentences, or words — plain text or HTML, privately in your browser.

Generate strong random passwords locally with configurable length and character sets.

Generate 192×192 and 512×512 PWA icons plus manifest starter from a logo — free, in your browser.

Generate a downloadable QR code from text or a URL — entirely in your browser.

Generate OpenSSH Ed25519, RSA, or ECDSA key pairs locally with fingerprints, comments, and PEM/OpenSSH formats — nothing is uploaded.

Generate TOTP and HOTP codes locally with Base32 secrets, algorithm/digits/period controls, skew window, otpauth URI, and QR.

Turn titles and phrases into clean, SEO-friendly URL slugs with kebab-case formatting.

Generate one or many RFC 4122 UUID v4 identifiers with Web Crypto.