NetBlocker
Block internet access for selected Mac apps
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NetBlocker is a deliberately simple outbound firewall for Apple silicon Macs. Drag an app into the list to block its new network connections. NetBlocker also discovers and displays related helpers, XPC services and background processes, so one rule covers more than the visible app. There are no connection-by-connection popups, accounts or subscriptions. It includes a 7-day free trial, costs €4.99 once and comes with a 30-day money-back guarantee.
PH · launched Sep 23, 2026 · 2 upvotes (top 26%) · 0 views
Niche: macos system utilities · 448 launches, 31 in the last 7 days ▼ -30% · Explore this niche →
Category and tags
- Horizontal
- Compliance & governance
- Prosumer
- Not AI
- Commercial product
- Mac
- Privacy
- Security
Visit website ↗ Source listing ↗
More like this: all 448 launches in macos system utilities →
Could you build this?
No Implementing a system-level outbound application firewall on macOS requires writing and notarizing a Network Extension (NEFilterDataProvider) in Swift/C with low-level OS entitlement handling.
What it would actually take: A real app requires an Apple System Extension utilizing the NetworkExtension framework, specifically `NEFilterDataProvider` or `NEFilterPacketProvider`. The core challenge is low-level packet inspection, process tree attribution (tracing XPC helpers and daemons back to parent app bundles), and securing specialized Network Extension entitlements directly from Apple, which cannot be vibe-coded.
Competitors
Other products that read as similar to this one : 299 launches clear the similarity bar, closest 8 shown.
Attention rank: #104 of 300 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 323 days after the earliest competitor.
- NetCurb: Mac Data monitoring · ph · 2026-09-27 · 2 upvotes · similarity 0.60
- Blocker · ph · 2026-09-07 · 3 upvotes · similarity 0.59
- Focus Firewall · ph · 2026-09-19 · 7 upvotes · similarity 0.53
- Cloister · ph · 2026-11-08 · 3 upvotes · similarity 0.52
- Whalewall · ph · 2026-11-14 · 1 upvotes · similarity 0.51
- attention awareness · ph · 2026-10-12 · 2 upvotes · similarity 0.51
- Halt · ph · 2026-10-29 · 1 upvotes · similarity 0.50
- Cactus Website Blocker · ph · 2026-11-11 · 2 upvotes · similarity 0.50
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