A MouseWheel Digital Product
A free, open-source Windows tray app that clocks your Claude Code and Claude Co-Work sessions. See active time, tokens, model breakdown, and — if you're curious — what the equivalent API rate would have cost. Parses the JSONL logs Claude Code already writes locally, so there's nothing to configure.
what it does
Full breakdown of every assistant message — input tokens, output tokens, cache writes, cache reads — for every Claude Code and Co-Work session on your machine.
See what your usage would cost at Anthropic's public API rates. A clean way to measure the real value you're getting from your Max or Pro subscription.
Estimates real engagement from message timestamps using a five-minute idle threshold. No more inflated "app was open" hours — just the time you were actually working.
Opus versus Sonnet versus Haiku. See which model is eating your budget, which sessions used which, and how your tool distribution shifts over time.
Daily cost bar chart, model usage doughnut, token type stacked bar, top tools, and a scrollable session table. All in a clean, dark-themed BrowserWindow.
Add a new AI tool with a single provider file. Out of the box: Claude Code and Claude Co-Work. Future tools slot in without touching the core ingest pipeline.
First launch parses 500+ MB of JSONL in 10–15 seconds. Every launch after that is sub-second via byte-offset tracking. File watchers keep stats live as you work.
Everything runs locally. SQLite database in your own user folder, no telemetry, no analytics, no cloud uploads. Your usage data never leaves your machine.
get it
Free, open source, no strings attached. Always the latest release.
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