D&D Toolkit

This tool provides a fast, probabilistic dice engine and lightweight planning utilities for tabletop play. It focuses on dice rolls, checks, saves, and simple encounter balance, aligned with common D&D 5e rules. The intended users are players and DMs who need quick, rule-consistent results during sessions or in prep. It runs in your browser, performs calculations locally, and does not require a server for core functionality.

Core features include parsing expressions such as 1d20+5 or 2d6+3, applying advantage or disadvantage, computing success chances, critical hits, and expected values. It can resolve attack rolls against an armor class, compute saving throws, and generate small encounters within a user-provided XP budget. Optional features support homebrew monsters, custom stat blocks, loot tables, and quick-note exports for game logs.

Unique value comes from integrating precise dice probabilities with encounter balance and straightforward outputs that DM or player can use on the fly. It targets speed, accuracy, and portability, with no login or heavy data requirements. The tool exports results as text and copies to clipboard for notes, and it supports offline use for single sessions. This combination helps reduce manual math, improve session pacing, and empower improv during play.