Roll d4–d100 with totals.
Dice Roller
Roll d4, d6, d8, d10, d12, d20, or d100 online. Add dice, modifiers, and see the total instantly.
- No sign-up
- Runs in your browser
- Cryptographic randomness
Your results
Your results will appear here.
History
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Your inputs and results never leave this device.
Roll one die or a whole handful. Choose the die type, add a modifier, and see every roll plus the total. The tool supports the standard polyhedral dice used in tabletop role-playing games and classroom probability lessons.
Each face is equally likely, and every roll is generated locally with a secure random source. Use it when physical dice are missing, when you need a quick d20 check, or when you want to demonstrate how modifiers change a result.
How to roll dice online
- 01
Choose the die
Select d4, d6, d8, d10, d12, d20, or d100.
- 02
Add dice and a modifier
Set how many dice to roll and add a bonus such as +3 for an ability check.
- 03
Roll and read the total
Each die result and the final total are shown together.
Popular ways to use the dice roller
Tabletop RPGs
Roll attack rolls, saving throws, damage, and random tables during a session.
Classroom probability
Compare flat d20 outcomes with the bell curve of 2d6 or 3d6.
Games and icebreakers
Assign random numbers, moves, or challenge levels.
Frequently asked questions
What does d20 mean?
The d stands for die, and 20 is the number of sides. A d20 produces a random integer from 1 to 20. A notation such as 2d6+3 means roll two six-sided dice and add three to the total.
Are online dice rolls fair?
Each face is selected with a cryptographically secure random source and an unbiased method, so each face is equally likely. There is no physics simulation, but the distribution is uniform.
Can I roll multiple dice?
Yes. Choose up to 100 dice and add a positive or negative modifier. The tool shows individual results and the total.
Does it support advantage or disadvantage?
The tool offers standard rolls. For advantage, roll two d20s and keep the higher result; for disadvantage, keep the lower result. Roll twice with the same settings.