Remove All Gmail Labels is a free Chrome add-on developed by nestor. As the name suggests, this add-on allows users to easily remove all Gmail labels currently in use.

With just a click on the icon, the add-on prompts a pop-up warning if the user is not on the Gmail settings label page. If the user is on the correct page, another pop-up warns about the potential deletion of all labels.

This add-on is particularly useful for those who need to remove multiple labels from an imported Outlook PST that contains a large number of labels. It was specifically created to aid in migrating corporate users from Outlook into Gmail.

Please note that using this add-on comes with a risk, as it deletes all labels without any possibility of retrieval. Users are advised to exercise caution and only use it if they are fully aware of the consequences.