Blockr 1.13.1 for Mac
Mac UtilitiesBlockr is an outbound firewall for Mac that shows which apps reach the internet and lets you decide what gets through. When an app first opens a connection, Blockr holds it and asks what to do. Your answer becomes a lasting rule, so the same question rarely returns. Everything runs on your Mac, with no account and nothing sent to a company server.
Key Features
- Holds the first connection from each new app and asks allow or block
- Rules for a whole app or one host, with host rules overriding app rules
- Live connection log grouped by app, with hostnames, ports, verdicts and search
- Optional blocklists for ads, trackers and malware domains, plus encrypted DNS
- Temporary rules and a pause option that expire on their own
How to Download
- Use the download button on this page and save the Blockr disk image.
- You can also Download from the official site to read the vendor notes first.
- Open the image, drag Blockr into Applications and approve the network filter when macOS asks.
System Requirements
Blockr needs macOS 14 Sonoma or later, on Apple silicon and Intel Macs. It is signed and notarized by Apple, so it opens without extra steps.
FAQs
Does Blockr send my traffic to a server?
No. Blockr works fully on your Mac, decides when a connection opens, never decrypts traffic, and keeps your log on your computer.
What happens if I ignore an alert?
It does not wait forever. Blockr applies your default action, and your later answer still becomes the rule.
Can I block one host but keep the app allowed?
Yes. Host rules win over app rules, so an app can stay allowed while one tracker stays blocked.
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