About RNG Tools

Why this site exists

Most random-number pages online are either a single bare input box or a wall of text with the tool buried under it. We built the opposite: the tool is the first thing you see, the methods are documented openly, and every feature a real user asks for — unique numbers, exclusions, sorting, CSV export, local history — is actually implemented.

Principles

• Privacy by default. Nothing you generate, paste or type is uploaded. Passwords are never logged or stored.
• Honest scope. We do not claim to be certified for lotteries or gambling, and we do not publish fake ratings, reviews or user counts.
• Documented data. Name and word lists come from public-domain sources, pinned by hash in the build pipeline.
• Low friction. No account, no email, no paywall, no pop-ups. Open the page and use the tool.
• Fast and light. Minimal JavaScript per page, no heavy frameworks in the browser, no web fonts blocking render.

Method transparency

Every generator uses the browser Web Crypto API with rejection sampling to avoid modulo bias. The exact algorithms — unique sampling, decimals, coin flips, dice, wheel winner selection and the platform's limits — are described on the Methodology page.

Contact

Questions, corrections and bug reports are welcome via the contact page.