What is Sniffly used for?

Sniffly is a free, MIT-licensed, self-hosted analytics dashboard for Claude Code that analyzes local usage logs to surface usage patterns, error breakdowns and shareable reports. It is a good fit for understanding your own Claude Code usage habits, and sharing coding agent instructions and stats with a team.

Is Sniffly open source?

Yes. Sniffly is open source under the MIT licence. Its source code is on GitHub at chiphuyen/sniffly and is written mainly in Python.

Yes. Sniffly is open source, so the software itself is free to use.

Can I self-host Sniffly?

Yes. Sniffly can be self-hosted on your own server or infrastructure; there is no official hosted version.

What are some alternatives to Sniffly?

Similar open-source tools in the Analytics category include Litlyx, Umami and Ackee. SaaS products in the same category include AffiliateTrack, Analyse and Adjust.

Is Sniffly actively maintained?

The most recent commit to Sniffly was on 8 August 2025. The project has 1.3k stars on GitHub.

Sniffly: open-source analytics

About Sniffly

Sniffly is a dashboard tool built specifically for people using Claude Code, Anthropic's coding agent CLI, who want to understand their own usage patterns in more depth. It analyzes the logs Claude Code already generates locally to surface insights that help a developer use the tool more effectively.

Its main features are understanding your own usage patterns over time, breaking down where Claude Code made mistakes so similar issues can be avoided in the future, and walking through full message history, which can optionally be shared with coworkers. A built-in sharing feature lets a user generate a link to their dashboard with configurable privacy, choosing between a private link, a public listing in a gallery, or whether to include the actual command text in what is shared.

Sniffly runs locally as a web server, by default accessible at localhost:8081, and can be installed with uv, pip, or run directly from source; configuration options cover the port, host, caching limits and how many messages load initially. It requires Python 3.10 or newer, is written in Python, and is released under the MIT license.

Key features

Claude Code usage pattern analytics
Error breakdown and mistake analysis
Full message history browsing
Shareable dashboard links with privacy controls
Local web server, no data leaves your machine by default

Good fit for

→Understanding your own Claude Code usage habits
→Sharing coding agent instructions and stats with a team

Built with: Python
Tags: claude-code; analytics; self-hosted; python; ai; dashboard; developer-tools

Sniffly: questions and answers

What is Sniffly used for?: Sniffly is a free, MIT-licensed, self-hosted analytics dashboard for Claude Code that analyzes local usage logs to surface usage patterns, error breakdowns and shareable reports. It is a good fit for understanding your own Claude Code usage habits, and sharing coding agent instructions and stats with a team.
Is Sniffly open source?: Yes. Sniffly is open source under the MIT licence. Its source code is on GitHub at chiphuyen/sniffly and is written mainly in Python.
Is Sniffly free?: Yes. Sniffly is open source, so the software itself is free to use.
Can I self-host Sniffly?: Yes. Sniffly can be self-hosted on your own server or infrastructure; there is no official hosted version.
What are some alternatives to Sniffly?: Similar open-source tools in the Analytics category include Litlyx, Umami and Ackee. SaaS products in the same category include AffiliateTrack, Analyse and Adjust.
Is Sniffly actively maintained?: The most recent commit to Sniffly was on 8 August 2025. The project has 1.3k stars on GitHub.