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Toolssy

Random Generator, Free Online Randomizer Tools

Toolssy is your all-in-one random generator. Spin up random numbers, names, words, passwords, colours and dozens of other picks in a single click, no sign-up, nothing stored, and it all runs instantly in your browser.

Random Number Generator

Press Generate to get your random numbers.

All Toolssy generators (87)

Pick a category to see its tools.

Numbers 7
Names 12
Words & Text 7
Security 4
Pickers 11
Sports 5
Gaming 18
Places 6
Things 13
Date & Time 4

How a random generator works

Follow a value through the engine, click any stage to learn what it does.

Engine:
Seed Entropy Algorithm Result
An unpredictable starting value. Toolssy draws it from your device via the Web Crypto API.

How Toolssy works

Three steps, zero friction.

Tap a step to preview it, or watch it play through.

Pick a tool:

Are the results really random?

Roll a die thousands of times, watch every face level out to an even, uniform distribution.

Total rolls
0
Evenness
-

100% = perfectly uniform. Real randomness converges here as rolls increase.

More randomizers to try

Every Toolssy tool works exactly like this, instant, in your browser, nothing stored.

Dice roller

6

Coin flip

?

-

Spinner wheel

-

Frequently asked questions

What is a random number generator?
A random number generator (RNG) is a tool that produces numbers with no predictable pattern. Toolssy uses your browser's cryptographically-strong randomness to give each number an equal, independent chance of appearing within the range you set.
How do random number generators work?
Software RNGs use an algorithm seeded from an unpredictable source to produce a sequence that behaves like true randomness. Toolssy relies on the Web Crypto API where available, which draws on entropy collected by your operating system.
Are the results really random?
For everyday use, picking winners, assigning teams, testing, games, yes. Toolssy prefers the browser's crypto-grade generator, which is far stronger than a basic Math.random() call and suitable for the vast majority of use cases.
Is Toolssy free to use?
Completely. Every generator on Toolssy is free, needs no account, and has no usage limits. There's nothing to install.
Can I generate numbers with no repeats?
Yes. Tick the "No repeats" option on the number generator and Toolssy will return only unique values, as long as your range is large enough to supply them.
Do you store the values I generate?
No. Everything runs locally in your browser. Toolssy never sends your inputs or results to a server, and nothing is logged or saved.