The heat map page: a year of days coloured by Claude Code token use, with totals and breakdowns by model and project

This is a tool that can display a heat map of your Claude Code usage over time when connected to a Claude Code extension. The heat map itself is portable to other applications (such as a home screen widget), and it works locally on your machine. The screenshot above is the web portal, and below is the local extension at startup.

Sign in to view your heat map on the web!

The same heat map drawn in the terminal when a Claude Code session starts, with totals and breakdowns by model and project