VVoolza

Generators

UUID, ULID, passwords, QR codes, fake data and scaffolds.

UUID generator

Generate random v4 or time-ordered v7 UUIDs in bulk.

NanoID generator

Generate compact, URL-safe unique IDs with a configurable size.

Password generator

Generate strong random passwords with character-class rules and a strength meter.

Random number generator

Generate cryptographically-strong random numbers within a range, with or without duplicates.

QR code generator

Create a QR code for any URL or text, customise the colours and error correction, then download it as PNG or SVG.

Barcode generator

Generate Code 128, EAN-13, UPC, Code 39 and ITF-14 barcodes from any value and download them as PNG or SVG.

Invoice generator

Create a professional invoice with line items, tax and discount, then download it as a PDF — no sign-up, nothing uploaded.

Spin the wheel (random picker)

Add names or options and spin an animated wheel to pick one fairly at random — wheel of names, decision maker and raffle picker.