100% private
All parsing happens in your browser. Your ~/.claude folder and .claude.json never leave your device.
Local-first analytics
Understand your Claude Code usage
Turn your local Claude Code session logs into clear, private reports. Visualise costs, model usage, peak hours, and productivity impact — without sending data anywhere.
Why use this report?
Built for developers who want insight into how they use Claude Code.
Cost & usage analytics
Track token spend, requests, model breakdown, project usage, daily limits, and cache efficiency.
Productivity impact
Estimate time saved, dev value, and ROI from usage facets generated by /insights in Claude Code.
Visual charts
Interactive Chart.js visualisations for trends, distributions, and comparisons across your data.
Localized
Available in English, Spanish, French, Polish, and Vietnamese.
Theme-aware
Seamless light and dark mode with a toggle that respects your system preference.
How it works
Get started in three simple steps.
- 1
Load your data
Select your ~/.claude folder using the browser folder picker. Optionally load .claude.json for skills and MCP tools.
- 2
Process locally
Session JSONL files and usage facets are parsed entirely inside your browser with no server upload.
- 3
Explore insights
View charts, tables, and impact analysis. Adjust settings like dev rate and daily limit to match your context.
Your data stays on your device
- No account or API key required.
- No telemetry, tracking, or cookies.
- Runs entirely in the browser using webkitdirectory.
- Settings are saved only in your browser's localStorage.