Block
Stop matching requests with no host permission.
Request rules that stay on your device
Block, redirect, upgrade to HTTPS, or adjust request headers with a clear Manifest V3 rule manager. Your rules never leave the browser.
Chrome · Edge · Firefox

A safer way to work
Every step stays visible. Examples and imported rules remain off until you have reviewed them.
Use a URL filter for everyday rules, a simple wildcard for easy captures, or a regular expression for advanced logic.
Try a URL and see the expected result without sending a network request.
The browser asks for site access only when the rule really needs it.
Stop matching requests with no host permission.
Send matching requests to another HTTP or HTTPS address.
Move matching HTTP traffic to HTTPS.
Remove or set supported request headers within a defined scope.
Export verified JSON and preview every change before importing.
Review rules from the old version while keeping the original data available.
Start with a short guide, then dig into the details when you need them.
Rules stay in your browser. There is no analytics code and no remote service handling your rules.