Random Yes or No
Need to make a fair random yes-or-no choice? Random Yes or No does it in the browser, in a couple of clicks. Values come from the browser's built-in cryptographic random generator (Web Crypto), not a predictable pseudo-random function. It is used most by teams generating identifiers for test data. Character sets and length are adjustable to meet a specific policy. It stays free with unlimited use, and there is no watermark on anything it produces.
Key features
- Character sets and length are adjustable to meet a specific policy.
- Nothing is remembered, so copy the value before leaving the page.
- Works on desktop, tablet and phone — no separate app to install.
- Loads in under a second and gives its result in one action.
How to use Random Yes or No
- Set your requirements: Choose the length and which character types to include.
- Generate: Press the button — a fresh cryptographically random value appears immediately.
- Store it safely: Copy it into a password manager now. Nothing is kept once you leave the page.
Frequently asked questions
- Is this safe for production keys? — The randomness source is appropriate for it. Handle and store the value with the same care as any other secret.
- Is the output from Random Yes or No genuinely random? — Yes. Random Yes or No uses the browser's Web Crypto generator, which is designed for cryptographic use — not the predictable Math.random.
- Can I recover a value I lost? — No, and deliberately so: nothing is retained. Copy it into your password manager before leaving.
- How long should a password be? — 16 characters or more with mixed character types is a sensible floor today; longer is better for anything valuable.