Diceroll

Exact odds and play tools for tabletop rules systems: Pathfinder 2e first, with 3.5E and others too. Every face of every die is counted, nothing is guessed, and it all runs in your browser: free, with no accounts. Four menus, in the order you might use them.

Dice

How the dice really behave, before any rules.

  • Dice mechanicsDamage rolls compared, what rolling twice does to a d20, hit and crit chance by your bonus against the AC.
  • Roll itReal rolls piling up on the exact odds, from one roll to a hundred thousand.

Reference

Look things up, and compare them.

  • Compare classesEvery class's proficiencies, Armor Class and damage at every level, or one class's every rank.
  • FeatsEvery current feat by class, ancestry, archetype, general or skill.
  • MonstersEvery creature's numbers by level, the weakest save of a family, one creature against its level.
  • SpellsEvery current spell, cantrip and focus spell, by tradition, rank and save.
  • WeaponsEvery current weapon with the traits you ask for.

Plan

What you fill in: your character and the fight ahead.

  • Character planA class and level worked into attack, DCs, AC, saves and Perception, each written out as its sum. Build one level by level, or import one from Pathbuilder.
  • EncounterThe creatures in a fight as one sheet, its threat for your party, and a playtest of it run hundreds of times.

Optimize

Make the most of a turn, then play the fight.

  • Compare attacksTwo plans for one turn, side by side: average damage, the chance of no damage, the chance to reach a goal.
  • Best turnEvery legal three-action turn for your class, ranked at every AC.
  • MatchupYour character against one creature, three Strikes a turn: the exact chance to win.
  • SkirmishOne fight against one creature with real choices, a coach showing each choice's chance to win.
  • Party SkirmishUp to four characters (yours, or ready-made ones) against up to eight creatures on a board: every class's own abilities, spells, healing and dying.

New here? The tours are short silent videos of each part. The ? at the top right of any page says what that page does.