Privacy Policy

NetLens browser extension · Last updated 18 June 2026

The short version: NetLens runs 100% in your browser. It does not collect, store remotely, sell, or transmit any of your data. There are no accounts, no analytics, and no servers that receive your browsing data.

What NetLens does

NetLens passively observes the network requests the page you're viewing makes, categorizes them (first- vs third-party, trackers, ads, CDNs, fonts, etc.), and shows you a privacy grade and breakdown. All of this analysis happens locally on your device, in real time.

What it accesses — and why

• Network request metadata (URL, resource type, status, initiator, response headers such as Content-Length, Set-Cookie count, and security headers) — read locally to categorize requests and compute the grade. NetLens uses the webRequest API in observe-only mode; it never blocks or modifies requests.
• The active tab's URL — to label the report and attribute requests to the correct tab. It does not read page content or request/response bodies.
• All sites you visit (<all_urls> host access) — because NetLens analyzes whichever page you choose to view. Access is used solely for the local analysis above.

What it stores

Only on your device, via the browser's storage APIs:

• Your preferences — the list of domains you've muted (allowlist) and your light/dark theme choice.
• A short-lived summary of the current tab's requests (session storage), so the popup and report page can display it. This is cleared when the tab/session ends.

None of this is ever sent off your device.

What it does NOT do

• No data collection, no transmission to any server, no selling or sharing of data.
• No accounts, sign-in, tracking, advertising, or third-party analytics.
• No reading of page content, form inputs, passwords, or request/response bodies.

The report page

When you open the in-depth report, NetLens opens a page on netlens.toolwizhub.com and passes the report data to it locally (in the page URL fragment and in-memory). The summary in a shareable link is masked and the data is processed in your browser — it is not uploaded to or stored by us. The website itself is static hosting (Cloudflare Pages); standard web-server access logs may record a page visit, but they contain none of your analyzed browsing data.

Permissions summary

• webRequest + host access — observe requests locally for analysis.
• storage — save your preferences and the transient summary on-device.
• tabs — read the active tab's URL, badge the icon, open the report tab.
• scripting — pass the report data into the report page NetLens opens.
• contextMenus — the "Analyze this page with NetLens" right-click item.

Children

NetLens is a general-purpose developer/privacy tool and is not directed at children. It collects no personal data from anyone.

Changes

If this policy changes, the updated version will be posted here with a new date.

Contact

Questions? Open an issue at github.com/sorapallivenkatesh/toolwizhub-netlens.