TOOL · 66 · Data & Utility
Generate uniform, unbiased random integers in any range — up to 10,000 at once, unique or with repeats.
In short
Random Number Generator produces cryptographically-random integers in any range using crypto.getRandomValues — up to 10,000 numbers at once, unique or with repeats, uniformly distributed.
Processed 100% in your browser — your files never leave your device.
Step · 01
Set the minimum, maximum and how many random numbers you want (up to 10,000).
Step · 02
Numbers are produced with crypto.getRandomValues for uniform, unbiased randomness.
Step · 03
Copy or download the list — great for lotteries, sampling, testing and giveaways.
Sigue adelante
Data & Utility
UUID Generator
Generate up to 1000 RFC 4122 v4 UUIDs at once — copy, bulk-copy or download as .txt.
AbrirData & Utility
Mock Data Generator
Generate up to 10,000 rows of realistic fake data (names, emails, dates, IDs, booleans…) as JSON or CSV.
AbrirData & Utility
Barcode Generator
Generate CODE128, EAN, UPC and ITF barcodes as PNG or SVG.
AbrirData & Utility
Password Generator
Strong, cryptographically-random passwords — pick length, character sets and ambiguous-character exclusion.
Abrir