Best Open Source Alternatives to Perimeter 81

Compare the best free and open-source alternatives to Perimeter 81 — self-hosted and desktop replacements you fully control, ranked by GitHub stars, license and platform support.

Curated by open-source.store · Updated August 2026 · 3 alternatives

Perimeter 81

Proprietary SaaS

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Platformsmacos, windows, linux, ios, android, web

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Perimeter 81 alternatives compared

Open-source alternatives to Perimeter 81, compared by stars, license and platform
Tool		License	Platforms	Self-hosted
Headscale	42,372	BSD-3-Clause	LinuxDocker	Yes	Jul 2026	Visit
OpenVPN	14,324	GPL-3.0	LinuxWindowsmacOSDocker	Yes	Aug 2026	Visit
Firezone	8,980	Apache-2.0	LinuxDocker	Yes	Aug 2026	Visit