D&D Dice Roller

The dice you need

A standard D&D set has seven dice, and this tool gives you every one with a single tap. The d20 drives attacks, saves and ability checks; the smaller dice — d4, d6, d8, d10 and d12 — handle damage and healing; and the d100 (percentile) covers random tables and rare effects. Tap a die button to set the sides, choose how many to roll, and the total is added up for you, so even a big damage roll like 8d6 takes one press.

• d20 — attack rolls, saving throws, ability and skill checks.
• d4 / d6 / d8 / d10 / d12 — weapon and spell damage, hit dice.
• d100 — percentile rolls and random tables.

4d6 drop lowest for ability scores

The most common way to roll a character's six ability scores is "4d6 drop lowest": roll four six-sided dice, discard the smallest, and add the remaining three. To do it here, set 4 dice with 6 sides, choose Keep Highest, and set the keep count to 3. The roller shows all four dice, crosses out the one it dropped, and totals the best three — then just roll it five more times for a full set of six scores.

Dropping the lowest die nudges results upward. Plain 3d6 averages 10.5, but 4d6-drop-lowest averages about 12.24 and is far more likely to produce the 15s and 16s that make a capable hero. That single rule is why characters rolled this way tend to feel stronger than the flat 3d6 method.

Advantage, disadvantage and modifiers

For the d20's signature mechanic, roll 2 dice of 20 sides and keep the highest 1 for advantage, or the lowest 1 for disadvantage. Advantage lifts your average d20 from 10.5 to roughly 13.8 and makes a natural 20 nearly twice as likely. Add your skill or attack bonus in the modifier field, or paste full notation such as 1d20+7, 2d6+3 or 8d6, and the roller fills everything in and rolls at once.

Fair rolls, no app needed

Every die here is perfectly balanced — each face equally likely — which is more than you can say for a chipped plastic d20 that always seems to roll low. When a roll decides a campaign-changing moment, turn on the crypto-secure source so the result is genuinely unpredictable and beyond dispute. Nothing leaves your browser, so the roller works at the table, on the train, or wherever the session takes you, even offline.