Resource Guardian

About

Resource Guardian helps you understand and control everything a page loads. Instantly see first‑ and third‑party hosts, then block what you don’t want with one click—no scripts or advanced setup needed.

Key features:

Live host discovery grouped by base domain (first‑ vs third‑party)
One‑click block/unblock for domains and specific URLs (Manifest V3 + DNR)
Per‑URL preview with open/copy tools
Search, filters, sorting, and bulk actions per section
Export/import of your block lists (domains and exact URLs)
Optional risk checks: intersect with URLhaus (malware) and StevenBlack; auto‑block third‑party matches
Internationalized UI with many languages and RTL support
No data collection; all processing is local
Why these permissions:

Read and change data on all sites: required to list and block the requests you choose
Declarative Net Request: to install dynamic blocking rules
WebRequest (passive): to measure and display requests (does not intercept or modify traffic)
Storage: to save your local settings and lists
Privacy

We do not collect, transmit, sell, or share user data. All analysis happens locally on your device.
See the Privacy Policy for details.