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Windmill Review

Depends

Should I use Windmill?

Built for teams to create and collaborate on internal software. Loved by engineers for full code flexibility and control over their infrastructure. Open-source and self-hostable. - windmill.dev

· 1 month ago

Buy if your team writes code and wants self-hostable, flexible workflow orchestration — and can patch fast. Skip it if you need no-code automation or lack an engineer to own operations and security.

Confidence

Medium. Based on 20+ public sources; most echo the vendor tagline, few independent user reviews found.

Ratings

  • Value for money
  • Ease of use
  • Feature depth
  • Support qualityNo evidence found
  • Security posture

Pricing

Not disclosed

ModelNot disclosed
Monthly feesNot disclosed
HardwareNot disclosed
Free tierYes

Best for

  • Engineering teams automating internal workflows
  • Teams wanting code flexibility and self-hosting
  • Replacing cron scripts with durable workflows
  • Internal tool builders who code

Not for

  • Non-technical teams wanting no-code automation
  • Small teams without an engineer to run it
  • Orgs unable to patch fast against active exploits
  • Anyone wanting plug-and-play SaaS simplicity

Gotchas - check before you buy

high

CVE-2026-29059 actively exploited as of July 2026; patch immediately if self-hosting

medium

Affected versions span 1.56.0–1.614.0 — audit your deployed version before trusting it

medium

Detailed paid-tier pricing not public; enterprise likely requires a sales conversation

low

Free unlimited executions shifts real cost to your infrastructure and ops time

Pros and cons

Pros

  • Open-source and self-hostable
  • Free tier with unlimited executions
  • Supports TypeScript, Python, Go, Bash scripts
  • Combines APIs, background jobs, workflows, internal tools in one platform
  • Adopted by 4,000+ organizations, 300+ enterprise customers

Cons

  • Code-first: non-engineers will struggle
  • Self-hosting means you own uptime, ops, and patching
  • Actively exploited missing-authorization CVE affects broad version range
  • No security page found on official site

Sources & method

- 12 sources - Actively exploited CVE-2026-29059 (missing authorization) affects versions 1.56.0–1.614.0; official security page not found.

official x3review x4security x3news x2
  • CVE-2026-29059 — missing authorization vulnerability, Windmill versions 1.56.0 through 1.614.0 contain a missing authorization vulnerability.
  • Active exploitation in the wild, Field Effect reports active exploitation of CVE-2026-29059 exposing accessible files, as of July 2026.

Key stats

  • Value for money: 4/5

    Rating

  • Not disclosed

    Starting price

  • 12

    Sources

  • Analyzed

  • Value for money: 4/5. Open-source with free unlimited-execution tier
  • Ease of use: 2/5. Code-first positioning demands engineering skill
  • Feature depth: 4/5. Scripts, workflows, jobs, internal tools in one platform
  • Support quality. No evidence found
  • Security posture: 2/5. Actively exploited CVE; no security page found
  • 17,519 GitHub stars open-source repo
  • 4,000+ Organizations using incl. 300+ enterprise customers
  • Yes Free tier unlimited executions free
  • 4+ Languages supported TypeScript, Python, Go, Bash

Pricing

Free tier: Yes

Security

Actively exploited CVE-2026-29059 (missing authorization) affects versions 1.56.0–1.614.0; official security page not found.

  • CVE-2026-29059 — missing authorization vulnerabilityWindmill versions 1.56.0 through 1.614.0 contain a missing authorization vulnerability.⁸
  • Active exploitation in the wildField Effect reports active exploitation of CVE-2026-29059 exposing accessible files, as of July 2026.⁹

What users say

sources position Windmill as a code-first, open-source platform engineers like, but independent review quotes are scarce.

Full analysis

Based on 20+ public sources; most echo the vendor tagline, few independent user reviews found.

Great code-first orchestration for engineering teams; overkill without devs, and an actively exploited CVE demands fast patching.

Methodology

Based on 20+ public sources; most echo the vendor tagline, few independent user reviews found.

Read how a report is made.

Sources

  1. Windmill official sitewindmill.dev
    official
  2. Windmill GitHub repositorygithub.com
    official
  3. Windmill on Y Combinatorycombinator.com
    official
  4. Best Workflow Automation Tools for Engineering Teamstmcnet.com
    news
  5. Best n8n Alternatives in 2026: 6 Tools Comparedbuda.im
    review
  6. Best n8n Alternatives for Open-Source Automationsynta.io
    review
  7. Windmill free tier — Unlimited Executions Freefreetier.co
    review
  8. Windmill CVEs and Security Vulnerabilitiesapp.opencve.io
    security
  9. Active exploitation of Windmill vulnerabilityfieldeffect.com
    security
  10. Windmill Security pagewindmill.dev
    security
  11. Windmill on Cloudron community packageforum.cloudron.io
    news
  12. Windmill — Workflow Orchestration & Durable Executiondevtune.ai
    review

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