Is this online dice really random?

It uses the browser Math.random() function — pseudo-random and uniform enough for games, raffles and quick decisions. Not suitable for cryptography.

Yes — pick 20 sides in the selector. d4, d8, d10 and d12 are also available.

Do I need to install anything?

No. It runs directly in the browser (mobile or desktop), free and without signup.

Yes — all standard polyhedral dice are supported: d4, d6, d8, d10, d12 and d20.

Roll an online dice: classic 6-sided or choose 4, 8, 10, 12 or 20 sides. For games, raffles and random decisions.

Number of sides

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Last result

Random result every time. Need web development? Get a quote.

Pick the number of sides: d6 (1-6, the classic), or d4 / d8 / d10 / d12 / d20 for tabletop and D&D.
Hit Roll dice. The result is a uniform random number between 1 and your chosen number of sides.
Roll as many times as you need — each roll is independent, no memory between rolls.

No install, no signup, no watermarks. Works on mobile, tablet and desktop.

Physical board games when the dice rolled under the couch: Monopoly, Catan, Risk, Backgammon.
D&D and RPGs: d4, d6, d8, d10, d12 and d20 in the same picker.
Quick raffles in class, office or with friends — no install needed.
Random decisions: who pays for dinner, who goes first, what movie to watch.
Teaching probability: instant uniform sampler for the classroom.

This dice roller is simple, but the same product thinking applies to serious internal tools: commercial calculators, private dashboards, automations, AI assistants and web products. At RoviDev we build React/Next.js web apps and SaaS, AI chatbots for customer support and custom mobile apps.

Is it really random? Uses Math.random() in your browser — pseudo-random, uniform enough for games and decisions. Not for cryptography.

Can I roll a d20? Yes — pick 20 in the selector. d4, d8, d10 and d12 are also there.

Signup or paywall? None. Free, no signup, no install.

Multiple dice at once (2d6, 3d8)? Current version: one die per roll. Hit Roll a few times and sum manually.

This dice roller is one of RoviDev's free web utilities. We also build custom web software, internal dashboards and CRM/ERP integrations for businesses. See how we work or browse case studies.