First screen, captured 5 days ago. Open the video.

A Little Snitch for Windows

What HN thinks

Nostalgia for 2000-era firewalls meets fresh disdain for AI-written landing pages.

Existing alternatives already do this
Many point to Portmaster, simplewall, Fort Firewall, Windows Firewall Control and reminisce about ZoneAlarm, BlackICE, Sygate and Kerio.
Vibe-coded security tool distrust
Several dismiss the app and its website as LLM slop, saying AI-written copy makes a security product look low-effort.
Subscription models sour goodwill
Commenters complain Glasswire and Portmaster moved features behind subscriptions, preferring one-time purchases.

Consensus: Most agree outbound-connection firewalls for Windows are nothing new and that plenty of established options exist.

Recommended in the comments

Portmaster (tool): Several use it as their go-to, though some dislike its move to paid features.
simplewall ↗ (tool): Lightweight and open source, though criticised for re-prompting after app updates.
Fort Firewall ↗ (tool): Preferred by some and manageable via group policy.
Windows Firewall Control (tool): Has a learning mode and gives users control over telemetry.
OpenSnitch (tool): Suggested as the Linux equivalent.
Sereno ↗ (tool): Shared by its author as a similar project.

Summarised by Claude from the comment thread 5 days ago.

Points: 103
Comments: 49
Best rank: #3
Posted: 2026-11-08 by BadBoyBubby
Category: Security

packethound outbound-firewall windows-firewall little-snitch windows privacy open-source

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