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Comparison · Infra & APIs
Retool vs Windmill
A side-by-side editorial comparison of Retool and Windmill — release velocity, themes, recent moves, and the top alternatives to consider.
Retool vs Windmill: at a glance
What is Retool?
Retool fills in its AI-native React app builder
Retool's recent work orbits its new app builder, which lets teams generate production-ready React apps from natural language, MCP-compatible coding agents, or imported React code. The latest entries fill in that builder with React import and app protection, while the rest is admin-console reorganization and routine self-hosted release-channel updates.
What is Windmill?
Windmill hardens for untrusted multi-tenant workloads while sharpening local DX
Windmill is a developer platform for running scripts, flows, and apps, and its recent releases split between enterprise-grade execution hardening and developer ergonomics. The standout is a daemonless, nsjail-sandboxed container runtime that runs arbitrary images without a Docker socket, isolated enough that Docker scripts are now allowed on Windmill Cloud. Around it sit incremental infra wins: smarter Kubernetes scale-in, inbound distributed tracing, remote SSH execution, and audit-log export.
Retool vs Windmill: editorial side-by-side
Retool
7.5INFRA · APIS
Retool fills in its AI-native React app builder
◆ Current state
Retool's recent work orbits its new app builder, which lets teams generate production-ready React apps from natural language, MCP-compatible coding agents, or imported React code. The latest entries fill in that builder with React import and app protection, while the rest is admin-console reorganization and routine self-hosted release-channel updates.
◆ Where it's heading
The product is converging on agent-built, React-based apps as its forward direction, treating the visual builder as one entry point among several. Self-hosted customers keep getting parallel Edge and Stable releases, signaling Retool is keeping its enterprise base in step with the builder rewrite.
◆ Prediction
Expect the new app builder to absorb more of the legacy builder's capabilities and MCP-driven app generation to deepen, with admin tooling continuing to consolidate.
Windmill
6.3INFRA · APIS
Windmill hardens for untrusted multi-tenant workloads while sharpening local DX
◆ Current state
Windmill is a developer platform for running scripts, flows, and apps, and its recent releases split between enterprise-grade execution hardening and developer ergonomics. The standout is a daemonless, nsjail-sandboxed container runtime that runs arbitrary images without a Docker socket, isolated enough that Docker scripts are now allowed on Windmill Cloud. Around it sit incremental infra wins: smarter Kubernetes scale-in, inbound distributed tracing, remote SSH execution, and audit-log export.
◆ Where it's heading
The direction is making Windmill safe and observable enough for large multi-tenant and regulated deployments: isolation that needs no privileged daemon, autoscaling that protects running jobs, end-to-end traces, and SIEM-ready audit logs. In parallel, the wmill dev live preview and editor integrations lower the friction of authoring locally. Enterprise hardening and self-serve DX are advancing together rather than one at the other's expense.
◆ Prediction
Expect further isolation and observability work, more sandboxing options and broader tracing coverage, plus continued investment in the local-to-cloud authoring loop.
Alternatives to Retool 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 Retool or Windmill.
Vercel
Vercel doubles down as AI infrastructure while stripping friction out of deployment.
Kubernetes
The v1.36 cycle advances upgrade safety and scheduling as ecosystem tooling consolidates.
Unleash
Unleash ships v8 with production MCP, relicenses to AGPLv3, and markets hard on AI governance.
Ory
Ory polishes OAuth2/OIDC ergonomics and adds live event observability to its Network.
Resend
Resend is wiring itself into AI coding agents while polishing its email-as-product surface.
See all Retool alternatives → · See all Windmill alternatives →
Recent activity from Retool and Windmill
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 5d agoWindmillKubernetes autoscaling scale-in prefers idle worker pods
- 5d agoWindmillRun bash scripts on a remote SSH host
- 5d agoRetoolSettings navigation bar reorganization
- 5d agoRetoolNew Overview page in Settings
- 10d agoWindmillJobs join the caller's inbound distributed trace
- 10d agoWindmillSandboxed daemonless container runtime ⚡
- 11d agoRetoolRetool 4.1 Edge for self-hosted instances
- 11d agoRetoolSelf-hosted Retool 3.334 and 3.300 stable updates
- 12d agoRetoolReact app import
- 14d agoRetoolProtect apps in the new app builder
- 27d agoWindmillExport audit logs to object storage
- 1mo agoWindmillS3Object input for native SQL scripts
Frequently asked questions
What is the difference between Retool and Windmill?
They serve adjacent needs but don't currently overlap on shipped themes. Retool is currently shipping more aggressively (velocity 7.5 vs 6.3), with 0 editorial sparks in the last 30 days against 1. See the at-a-glance table above for a side-by-side breakdown of velocity, recent sparks, and editorial themes.
Is Retool better than Windmill?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Retool is currently shipping more aggressively (velocity 7.5 vs 6.3), with 0 editorial sparks in the last 30 days against 1. For your specific use case, the alternatives sections above list other Infra & APIs products to evaluate alongside.
What are the best alternatives to Retool?
Top Retool alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "Retool alternatives" section above for the current picks, or visit /alternatives/retool 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.