D20 Dice Roller
Roll one or more twenty-sided dice online — the standard die for attack rolls, ability checks and saving throws in D&D and other d20 systems.
Roll history
Your rolls will appear here.
The d20, or twenty-sided die, is the backbone of D&D 5th edition, Pathfinder and every other d20 system. This d20 dice roller generates a genuinely random number between 1 and 20 for every roll, whether you need a single attack roll or a full set of dice for a group check.
What Is a D20 Used For?
In d20 systems, nearly every action a character takes is resolved with this one die plus a modifier compared against a target number.
- Attack rolls against an enemy's armor class
- Ability checks such as Strength, Dexterity or Persuasion
- Saving throws against spells and traps
- Initiative rolls at the start of combat
Rolling Multiple D20s
Increase the dice count to roll several d20s in one action — useful for advantage and disadvantage (roll 2, keep the higher or lower), or for rolling initiative for an entire group at once. Each die is listed individually alongside the combined total.
Frequently asked questions
What is a d20 dice roller used for?
It replaces a physical twenty-sided die for attack rolls, ability checks, saving throws and initiative in D&D, Pathfinder and other tabletop games built around a single d20 mechanic.
How do I roll with advantage in D&D 5e?
Set the dice count to 2 and roll. Both individual results are shown separately — use the higher number for advantage or the lower number for disadvantage.
Is a natural 20 as likely on this roller as on a physical die?
Yes. Each of the 20 outcomes has an equal 1-in-20 chance, generated with a cryptographically secure random source rather than a biased or predictable method.
Can I roll more than one d20 at a time?
Yes, up to 20 dice at once, with every individual result and the running total shown.
Is this free?
Yes, with no account or download required.