Random Number Generator
Generate random numbers, roll dice, or pick randomly from a list.
Press Space to regenerate
How it works
1. Upload
Select or drag your file onto the upload area.
2. Process
Your file is processed instantly — nothing is stored.
3. Download
Download your result with one click. Done.
Why Criply
Private by default
Client-side tools never upload your files. Server-side tools delete them immediately after processing.
No account needed
Just upload and go. No email, no password, no account — ever.
Works on any device
Fully browser-based. Works on desktop, tablet, and mobile with nothing to install.
Frequently asked questions
Yes. This tool uses crypto.getRandomValues(), the browser's cryptographic random number generator. It is far more random than Math.random(), which uses a deterministic pseudo-random algorithm. Cryptographic randomness is suitable for security-sensitive applications.
Related tools
Four modes in one tool: generate a single random number with history, generate multiple numbers with optional duplicate removal, pick randomly from a pasted list (great for giveaways), and roll virtual dice (d4 through d100). Uses crypto.getRandomValues() throughout — never Math.random(). Free, no signup.