All Tools
A collection of web-based tools for creating and playing custom Project Heartbeat and Project DIVA charts.
Input History Overlay
A streaming overlay designed to show inputs for fast-paced gameplay. See inputs scroll across the screen as you play, instead of only highlighting them for a fraction of a second.
Chart Converter
Convert charts between different rhythm game formats online. Supports Project Heartbeat and Project DIVA Megamix+.
Attack Calculator
Calculate the theoretical maximum score and optimal routing for Project Heartbeat charts or analyze custom alternate routes.
Difficulty Color Generator
Preview Project Heartbeat's auto-generated difficulty colors or search through millions of combinations of invisible characters to find the perfect custom color for a difficulty name.