Roll a d20
This page opens the dice roller with one twenty-sided die. Tap it to roll a number from 1 to 20.
Add your bonus with the modifier, for example d20+5 for an attack roll. For advantage, roll 2 dice and use the higher one. Save your usual rolls as presets for quick access.
Questions
Is a natural 20 as likely as any other roll?
Yes. Every face from 1 to 20 has exactly a 5% chance.
How do I add my modifier?
Open Parameters and set the modifier, or type notation like d20+5. The total includes it.