Shimo

Native macOS HTTP debugging proxy that captures and decrypts HTTPS traffic, with breakpoints, local and remote mapping, JavaScript rewriting and network throttling.

• Networking
• One-time purchase
• v26.0.1

Free and open-source network protocol analyzer for capturing and inspecting traffic in detail, with a graphical application and command-line tools.

• Networking
• Open Source
• v4.6.9

Little Snitch

Application firewall that approves or blocks every outgoing connection.

macOS network monitor and personal application firewall that asks before any app connects out, with rule groups, profiles, blocklists and encrypted DNS.

• Networking
• One-time purchase
• v6.5

Flat-rate privacy VPN at €5 per month that takes no personal information, not even an email address, and accepts cash payments.

• Networking
• Open Source
• v2026.5

Tailscale

WireGuard-based mesh network for connecting devices and services.

Zero Trust connectivity platform that builds an encrypted peer-to-peer mesh between your devices using WireGuard, instead of routing traffic through a central VPN gateway.

• Networking
• Freemium
• v1.102.4

Cross-platform web debugging proxy for viewing HTTP and SSL/HTTPS traffic between your machine and the internet, sold as a one-time licence.

• Networking
• One-time purchase
• v5.2.1