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Comparison · Infra & APIs

Authelia vs Windmill

A side-by-side editorial comparison of Authelia and Windmill — release velocity, themes, recent moves, and the top alternatives to consider.

Shared themes:devtools

Authelia vs Windmill: at a glance

FeatureAutheliaWindmill
SectorInfra & APIsInfra & APIs
Velocity score5.07.5
Sparks · 30d02
Top themesoidc, authentication, security-fixes, self-hostedworkflow-automation, ai-agents, devtools, dbt
Last editorial update22h ago4d ago
WebsiteVisit →Visit →

What is Authelia?

Authelia ships rapid-fire OIDC and storage fixes, staying firmly in 4.39.x hardening mode.

Authelia is deep in patch maintenance on its 4.39.x series, with most releases consisting entirely of bug fixes targeting OIDC conformance, storage correctness, and authentication edge cases. The September cluster shows 4-5 releases in a single week, all narrowly scoped to individual defects. Security fixes appear intermittently — v4.39.16 and v4.39.20 patched access control and basic auth canonicalization flaws under CVE advisories.

Read the full Authelia trajectory →

What is Windmill?

Windmill is building a full AI-native workflow platform — guest app access, agent evals, dbt runtime, and AI cost tracking shipped in rapid succession.

Windmill is an open-source workflow automation and developer platform that has been adding AI capabilities at an accelerating rate. The last month brought AI agent evaluations (with dataset-based scoring and run comparison), AI usage and cost tracking per user and model, a Plan mode for AI sessions (read-only investigation posture), version history for both AI artifacts and resource values, and nested filter groups for Kafka and WebSocket triggers. The platform now spans workflow orchestration, AI-assisted script writing, and a native dbt runtime.

Read the full Windmill trajectory →

Authelia vs Windmill: editorial side-by-side

A
Authelia
INFRA · APIS
5.0

Authelia ships rapid-fire OIDC and storage fixes, staying firmly in 4.39.x hardening mode.

◆ Current state

Authelia is deep in patch maintenance on its 4.39.x series, with most releases consisting entirely of bug fixes targeting OIDC conformance, storage correctness, and authentication edge cases. The September cluster shows 4-5 releases in a single week, all narrowly scoped to individual defects. Security fixes appear intermittently — v4.39.16 and v4.39.20 patched access control and basic auth canonicalization flaws under CVE advisories.

◆ Where it's heading

The sustained cadence of OIDC fixes suggests the team is working toward full spec compliance before moving to a major version. The storage and JWT hardening pattern across multiple releases points to infrastructure groundwork — the kind that typically precedes a significant architectural change rather than an ongoing indefinite maintenance cycle. No visible signals of feature work appear in any recent entry.

◆ Prediction

Expect continued patch releases on 4.39.x while OIDC conformance and storage stability reach acceptable thresholds. Without any feature PRs visible, a 5.x or feature branch is likely in progress out of public view.

W
Windmill
INFRA · APIS
7.5

Windmill is building a full AI-native workflow platform — guest app access, agent evals, dbt runtime, and AI cost tracking shipped in rapid succession.

◆ Current state

Windmill is an open-source workflow automation and developer platform that has been adding AI capabilities at an accelerating rate. The last month brought AI agent evaluations (with dataset-based scoring and run comparison), AI usage and cost tracking per user and model, a Plan mode for AI sessions (read-only investigation posture), version history for both AI artifacts and resource values, and nested filter groups for Kafka and WebSocket triggers. The platform now spans workflow orchestration, AI-assisted script writing, and a native dbt runtime.

◆ Where it's heading

The pattern across recent releases is clear: Windmill is building the operational infrastructure around AI agents — not just the ability to run them, but the ability to measure, control, audit, and govern them. Agent evals add a testing layer; Plan mode adds a safety posture; cost tracking adds financial visibility; version history adds rollback capability. The guest app access model also introduces a new monetization dimension (4:1 guest-to-seat ratio above 100 free guests). Windmill is positioning as the AI workflow platform for teams that need enterprise-grade controls.

◆ Prediction

The eval framework (currently beta) will likely gain deeper integration with CI/CD and deployment flows. Guest access metering signals that Windmill is building toward consumption-based pricing for external-facing AI apps. Expect tighter integration between the agent evals system and the existing flow editor deployment pipeline.

Alternatives to Authelia and Windmill

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 Authelia or Windmill.

See all Authelia alternatives → · See all Windmill alternatives →

Recent activity from Authelia and Windmill

Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.

  1. 1d agoAutheliaOIDC alg:none JARM conformance fix
  2. 3d agoAutheliaSMTP notification fix for IPv6 literal addresses
  3. 4d agoAutheliav4.39.24
  4. 5d agoAutheliaOIDC resource grants, client auth fixes, and web UI corrections
  5. 8d agoWindmillGuest access for apps
  6. 10d agoAutheliaAccess token JWT storage upgrade fix
  7. 10d agoAutheliaMajor OIDC and storage hardening batch with pre-compressed asset serving
  8. 20d agoWindmillAI agent evals (beta)
  9. 20d agoWindmillAI usage and cost tracking
  10. 23d agoWindmillApplication default credentials for GCP Pub/Sub triggers
  11. 1mo agoWindmillPlan mode for AI sessions
  12. 1mo agoWindmillNested filter groups and dotted paths in trigger filters

Frequently asked questions

What is the difference between Authelia and Windmill?

Both compete on the same themes — devtools — within Infra & APIs. Windmill is currently shipping more aggressively (velocity 7.5 vs 5.0), with 2 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 Authelia better than Windmill?

Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Windmill is currently shipping more aggressively (velocity 7.5 vs 5.0), with 2 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 Authelia?

Top Authelia alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "Authelia alternatives" section above for the current picks, or visit /alternatives/authelia for the full list with editorial commentary on each.

What are the best alternatives to Windmill?

Top Windmill alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "Windmill alternatives" section above for the current picks, or visit /alternatives/windmill for the full list with editorial commentary on each.