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Comparison · Infra & APIs
Headscale vs GLAuth
A side-by-side editorial comparison of Headscale and GLAuth — release velocity, themes, recent moves, and the top alternatives to consider.
Headscale vs GLAuth: at a glance
What is Headscale?
Headscale is systematically reverse-engineering Tailscale's own behaviour to close the parity gap
Headscale is running a v0.29.0 beta series, now at beta.4, built around one theme: matching how the official Tailscale control plane actually behaves. The team generated extensive test cases against real Tailscale clients and the commercial SaaS to compare packet filter generation, and added support for SSH rules using the check action. Minimum supported client is v1.80.0.
What is GLAuth?
A small LDAP server that grew OpenTelemetry tracing, embedded plugins and RISC-V builds.
GLAuth's 2.5.0 in April was the substantial release: OpenTelemetry tracing wired through the handler and plugin packages plus otelsql, embedded plugins, RISC-V platform support, StartTLS and LDAPS brought to feature parity, and LDAP paging compatibility when proxying. The two releases since are corrective — rejecting disabled users on all backends during Bind, an arbitrary-password issue, and a release-time plugin compatibility check.
Headscale vs GLAuth: editorial side-by-side
Headscale
0.0INFRA · APIS
Headscale is systematically reverse-engineering Tailscale's own behaviour to close the parity gap
◆ Current state
Headscale is running a v0.29.0 beta series, now at beta.4, built around one theme: matching how the official Tailscale control plane actually behaves. The team generated extensive test cases against real Tailscale clients and the commercial SaaS to compare packet filter generation, and added support for SSH rules using the check action. Minimum supported client is v1.80.0.
◆ Where it's heading
The methodology is the story — rather than implementing ACLs from documentation, the project is deriving behaviour empirically from the commercial service and closing the differences it finds. That is what an open-source control plane has to do to be a genuine drop-in. The four betas carry identical release notes, so the feature set was fixed at beta.1 and everything since is stabilisation.
◆ Prediction
Expect a v0.29.0 release candidate or final once the beta series stops adding notes, with ACL parity work continuing into the next cycle.
GLAuth
5.0INFRA · APIS
A small LDAP server that grew OpenTelemetry tracing, embedded plugins and RISC-V builds.
◆ Current state
GLAuth's 2.5.0 in April was the substantial release: OpenTelemetry tracing wired through the handler and plugin packages plus otelsql, embedded plugins, RISC-V platform support, StartTLS and LDAPS brought to feature parity, and LDAP paging compatibility when proxying. The two releases since are corrective — rejecting disabled users on all backends during Bind, an arbitrary-password issue, and a release-time plugin compatibility check.
◆ Where it's heading
The direction in 2.5.0 is toward being operable in production rather than merely functional: distributed tracing, a config watcher that notices files added to a directory, credentials no longer leaking at INFO log level, and a legacy behaviour mode so existing deployments can upgrade without changing semantics. The patches since suggest the authentication paths are getting scrutiny they had not previously had, with disabled-user handling inconsistent across backends until 2.5.1 fixed it.
◆ Prediction
Expect the 2.5 line to keep taking small authentication-correctness fixes, with the embedded plugin mechanism and the release-time compatibility check pointing toward more attention on how third-party backends are built and shipped.
Alternatives to Headscale and GLAuth
Other Infra & APIs products tracked by Sparkpulse, ranked by recent ship velocity. Each card links to a full editorial trajectory and lets you pivot into a head-to-head comparison with either Headscale or GLAuth.
werf
Three release channels at once as werf 3 takes shape beside a still-shipping 2.75.
Volatility
Volatility 3 caught up with Volatility 2, then started reorganising itself.
OctoPrint
OctoPrint 2.0 turns serial into one connector among several, and breaks plugins doing it.
CRI-O
Patch tags land monthly with release notes that itemize nothing.
Dokploy
A self-hosted PaaS spending its releases on secrets, injection fixes and plan limits.
See all Headscale alternatives → · See all GLAuth alternatives →
Recent activity from Headscale and GLAuth
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 11d agoGLAuthv2.5.2 checks plugin compatibility at release time
- 18d agoGLAuthv2.5.1 rejects disabled users on every backend during Bind
- 1mo agoHeadscalev0.29.0-beta.4
- 1mo agoHeadscalev0.29.0-beta.3
- 2mo agoHeadscalev0.29.0-beta.2
- 2mo agoHeadscalev0.29.0-beta.1 ⚡
- 3mo agoGLAuthv2.5.0 wires OpenTelemetry tracing through GLAuth end to end ⚡
Frequently asked questions
What is the difference between Headscale and GLAuth?
They serve adjacent needs but don't currently overlap on shipped themes. GLAuth is currently shipping more aggressively (velocity 5.0 vs 0.0), with 0 editorial sparks in the last 30 days against 0. See the at-a-glance table above for a side-by-side breakdown of velocity, recent sparks, and editorial themes.
Is Headscale better than GLAuth?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. GLAuth is currently shipping more aggressively (velocity 5.0 vs 0.0), with 0 editorial sparks in the last 30 days against 0. For your specific use case, the alternatives sections above list other Infra & APIs products to evaluate alongside.
What are the best alternatives to Headscale?
Top Headscale alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "Headscale alternatives" section above for the current picks, or visit /alternatives/headscale for the full list with editorial commentary on each.
What are the best alternatives to GLAuth?
Top GLAuth alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "GLAuth alternatives" section above for the current picks, or visit /alternatives/glauth for the full list with editorial commentary on each.