Strava Bulk Edit is a free Chrome extension developed by MGHollander that allows users to edit multiple Strava activities simultaneously. This convenient tool adds a title to the activity filter panel and an update panel below the activity panel.

To use the extension, simply visit the My Activities page on Strava.com and use the filters to select the activities you want to edit. You can then choose the privacy setting to apply to the selected activities and click the "Update activities" button. While the extension updates the activities in the background, a loading screen will appear and close once the updates are complete.

It's important to note that not all filtered activities will have the same fields available in the update panel. The extension will only update the fields that are available for each individual activity. Additionally, the extension does not currently support updating the Run type field due to an issue on Strava's side.

In terms of future improvements, the developer has outlined their roadmap on the extension's GitHub repository, where users can also provide feedback, share ideas, or report bugs. Donations to support the developer can be made via PayPal.

Overall, Strava Bulk Edit is a useful Chrome extension for Strava users who need to make bulk edits to their activities quickly and efficiently.