Baseline Checker drops the export dance
The Baseline Checker tool now pulls Google Analytics data directly through the API, removing the most time-consuming step in the old workflow: manually exporting and re-uploading browser version data.
The tool is designed to help you pick the right Baseline target by showing what share of your real traffic supports a given feature set. Previously, that meant signing into Google Analytics, configuring a data export, downloading it, and then feeding that file into the checker.
How the updated workflow works
The streamlined flow relies on recently added browser version support in the Google Analytics API. Instead of touching files, you authorize the tool to fetch the data for you:
- Visit baseline-checker.chrome.dev.
- Select Sign in with Google and pick your account.
- Choose the target Google Analytics account and property.
- Set your date range (the default is the last 28 days).
- Select Generate Report to fetch and process the data.
All data processing still happens locally on your device; the sign-in step only authorizes the API call. The resulting report shows the exact proportion of users supporting each Baseline target, so you can decide which features or fallbacks are safe to ship in production.
