Privacy Policy
Last updated: 13 August 2026
FollowLens has no server. Nothing it collects ever leaves your device. This entire policy is the detail behind those two sentences.
What we collect
Nothing — on our side. FollowLens has no backend, no analytics, no crash reporting and no account system. When you start a scan, the follower and following lists it collects are written to your browser's own IndexedDB database, on your device, and stay there.
What is stored on your device
- Follower and following lists — username, display name, avatar URL and the verified/private markers, for the accounts you scan.
- Scan history — when each scan ran, its counts, and the quality it was collected at.
- Your preferences — language, theme, ignore list and export options.
Permissions, and why each is needed
- Access to instagram.com, github.com — required to read the follower and following lists you open on those sites. FollowLens runs only on these two platforms and nowhere else.
- storage — to keep your scans and settings on your device. Browser sync is not used.
- scripting and activeTab — to inject the collection script into the tab you already have open, when you press Start. Nothing is injected into any tab on its own.
Network requests
FollowLens only ever makes requests to the platform you already have open — the same requests your own scrolling would make. It connects to no other address. There are no third-party scripts, trackers, pixels or font CDNs — in the extension or on this site, whose typefaces are served from this domain rather than from Google.
Deleting your data
You can delete a single account's history, or wipe everything, from Settings. Removing the extension also deletes all of the browser storage belonging to it. Because no copy exists anywhere else, deletion is final.
Children
FollowLens is not directed at users under 13, and collects no personal data of any kind, including age.
Changes to this policy
If this page changes, the date above changes with it. The policy's history is public in the repository, like the rest of the site.
Contact
For questions or anything you want reported about privacy, write to hello@mtvrkan.com.