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Comparison · Infra & APIs
Webmin vs Windmill
A side-by-side editorial comparison of Webmin and Windmill — release velocity, themes, recent moves, and the top alternatives to consider.
Shared themes:self-hosted
Webmin vs Windmill: at a glance
What is Webmin?
Webmin absorbs Linux subsystems one module at a time, with access controls tightening underneath.
Webmin ships every few weeks as a paired release with Usermin, and the visible window runs from 2.641 in May to 2.660 in August. The substantial release is 2.650, which added modules for systemd services and units, the GRUB 2 boot loader and the Kea DHCP server, along with basic Alpine Linux support. Since then the work has narrowed to storage and packaging detail: Btrfs subvolume quota management, vfsv1 quota files above 4 TiB, APT package holds and incremental Fail2Ban ban times.
What is Windmill?
Windmill gives its AI agents a test harness, the piece that lets them into production flows
Windmill is a developer platform for scripts, flows and internal apps, shipping weekly across three lanes. The AI lane is the busiest: sessions that build scripts and flows as reviewable drafts, a read-only plan mode that refuses writes until you approve, version history on session artifacts, and now evaluation for reusable agents. The runtime lane keeps absorbing data tooling — dbt projects run natively, BigQuery and Snowflake came out from behind the Enterprise licence. The workspace lane is consolidating deployment semantics around fork lineage.
Webmin vs Windmill: editorial side-by-side
Webmin
2.5INFRA · APIS
Webmin absorbs Linux subsystems one module at a time, with access controls tightening underneath.
◆ Current state
Webmin ships every few weeks as a paired release with Usermin, and the visible window runs from 2.641 in May to 2.660 in August. The substantial release is 2.650, which added modules for systemd services and units, the GRUB 2 boot loader and the Kea DHCP server, along with basic Alpine Linux support. Since then the work has narrowed to storage and packaging detail: Btrfs subvolume quota management, vfsv1 quota files above 4 TiB, APT package holds and incremental Fail2Ban ban times.
◆ Where it's heading
Two lines run in parallel. One extends the range of Linux subsystems Webmin can administer, adding a module wherever the distributions have moved: systemd, Kea, nftables, Netplan, Alpine. The other tightens what an authenticated user is permitted to do. Release 2.652 added a per-user ACL blocking URL downloads from non-public IP addresses and enforced file access ACLs on local imports across the database and directory modules, while 2.650 fixed a reflected XSS and made RPC-only accounts fail before module ACL checks. For a panel that runs as root on other people's servers, the second line is the more consequential one.
◆ Prediction
Expect the module-per-subsystem pattern to keep tracking whatever the distributions adopt next, and further ACL work in the modules that fetch remote URLs or import local files, since that is where the last two releases found problems.
Windmill
6.3INFRA · APIS
Windmill gives its AI agents a test harness, the piece that lets them into production flows
◆ Current state
Windmill is a developer platform for scripts, flows and internal apps, shipping weekly across three lanes. The AI lane is the busiest: sessions that build scripts and flows as reviewable drafts, a read-only plan mode that refuses writes until you approve, version history on session artifacts, and now evaluation for reusable agents. The runtime lane keeps absorbing data tooling — dbt projects run natively, BigQuery and Snowflake came out from behind the Enterprise licence. The workspace lane is consolidating deployment semantics around fork lineage.
◆ Where it's heading
The AI work has moved through a recognisable sequence: first let the assistant build things, then constrain what it may do without approval, then make its output reviewable and revertible, and now make agents measurable against a fixed set of cases. That is the arc of taking AI from a demo surface to something you are willing to put in a scheduled flow. In parallel, Windmill keeps pulling data-stack runtimes inside its own execution model rather than integrating with them, and keeps giving away runtimes that were previously licensed.
◆ Prediction
Evals are the obvious hook for regression gating, so expect them to be callable from a flow or CI rather than only from the agent card, and expect the eval run history to feed the same version-comparison surface the session artifacts already use.
Alternatives to Webmin 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 Webmin or Windmill.
incident.io
Alert rate limits stop being per-source and start being per-tenant, by query.
Warp
The essay series keeps running ahead of the products it describes.
Node-RED
Both lines patch on the same day, and the reverted JSONata upgrade finally sticks.
werf
The 3.x line finally ships function: authenticated secret writes and render patches.
Infisical
Folder-level RBAC lands, and approvals finally get a webhook to talk to.
See all Webmin alternatives → · See all Windmill alternatives →
Recent activity from Webmin and Windmill
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 9d agoWindmillAI agent evals (beta) ⚡
- 17d agoWebminBtrfs subvolume quotas and APT package hold management
- 19d agoWindmillPlan mode for AI sessions
- 22d agoWindmillNested filter groups and dotted paths in trigger filters
- 23d agoWindmillVersion history for AI session artifacts
- 1mo agoWindmillRun dbt projects as a first-class Windmill runtime ⚡
- 1mo agoWindmillOne deployment target, derived from the workspace lineage
- 1mo agoWebmin2.653 restores a missing xmlrpc-lib.pl and fixes Debian package listing
- 1mo agoWebminACL controls block URL downloads from non-public IP addresses
- 2mo agoWebmin2.651 fixes Certbot PEM path parsing and bond interface activation
- 2mo agoWebminThree new modules land: systemd units, GRUB 2, and Kea DHCP
- 3mo agoWebminTrusted proxy IP address support
Frequently asked questions
What is the difference between Webmin and Windmill?
Both compete on the same themes — self-hosted — within Infra & APIs. Windmill is currently shipping more aggressively (velocity 6.3 vs 2.5), with 1 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 Webmin better than Windmill?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Windmill is currently shipping more aggressively (velocity 6.3 vs 2.5), with 1 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 Webmin?
Top Webmin alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "Webmin alternatives" section above for the current picks, or visit /alternatives/webmin 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.