Growth Opt Playbook is a browser-based marketing data analysis toolkit for performance marketers. It lets users upload a campaign CSV or connect a Google Sheet, then analyze campaign health, budget allocation, creative performance, experiments, and longer-term marketing response.
The site organizes its tools into a clear decision workflow: monitor weekly performance, explain changes, choose budget or creative actions, prove effects with tests, and learn from response analysis. The tools are presented as free to use, with the source data kept in the browser rather than sent to a server.