96 converters across 8 categories. Search live or jump to a section.
Generate v4 UUIDs in bulk — cryptographically secure.
Turn any text into a URL-friendly slug.
Generate placeholder text — paragraphs, sentences or words.
SHA-1, SHA-256, SHA-384, SHA-512 — all in browser.
HMAC-SHA1/256/384/512 with any secret.
Cryptographically secure random passwords.
Generate customisable QR codes or decode them from images.
Linear, radial and conic CSS gradients.
Visual CSS box-shadow editor.
Per-corner CSS border-radius editor.
Generate full favicon and PWA icon sets.