Is it safe to delete Google Chrome website data?
Offline data that websites and web apps stored in Chrome, such as service worker caches and IndexedDB databases.
Usually safe
It can be recreated, but it takes a download, a reinstall or the tool's own command.
~/
What it is
Websites can store data in Chrome so they load faster and work offline: service workers keep their own caches, and web apps keep databases in IndexedDB. Each Chrome profile (Default, Profile 1 and so on) has its own copy, and a single site can store several gigabytes. Chrome keeps this data until the site or you remove it. On macOS 27, macOS protects Chrome's data folder so that other apps can't open or change it, so clear it from Chrome's settings.
If it's removed
You're signed out of the websites you clear, their saved preferences are reset, and web apps that work offline download their data again. Anything a web app saved only on this Mac, such as unsynced drafts, is lost.
What to do instead
In Chrome, open Settings > Privacy and security > Third-party cookies > See all site data and permissions, and delete the sites you no longer use. To remove everything, choose Delete browsing data and select Cookies and other site data.
The free analyzer finds it and explains it, with these steps. The app doesn't remove it for you.
Sources
- support.google.com/chrome/answer/95647
- developer.mozilla.org/en-US/docs/Web/API/Storage_API/Storage_quotas_and_eviction_criteria
- wojciechregula.blog/post/golden-gate-appdata-protection
Last checked on 26 Sep 2026. Every entry is written and checked by hand; the app and the command-line tool use the same words.