Windmill vs Zapier

Comprehensive side-by-side comparison — features, pricing, performance, and more.

Updated October 2026

Windmill

Windmill Labs

Code-first orchestration platform for internal software

Open Source

86% verification coverage

Zapier

Automate AI workflows, agents, and apps across 9,000+ apps

Freemium

82% verification coverage

Trust & Reliability

Windmill

Users:1K-10K

Customers (per vendor):Zoom, Kahoot, Investing.com +7

GDPR

SOC 2

HIPAA

Zapier

Uptime:99.96%Status page

Users:1M-10M

Customers (per vendor):Nvidia, Meta, Lowe's +7

GDPR

SOC 2

Too Close to Call

Windmill (8.0) vs Zapier (8.0) — difference of 0.0 points

Scores are AI-estimated from publicly available data — not an independent test or a verified user rating. How we rank →

AI Comparison Summary

Windmill

8.0

avg score

Zapier

8.0

avg score

Both tools score very similarly overall — the best choice depends on your specific priorities.

Based on 7 dimensions

Scores are AI-estimated from publicly available data — not an independent test or a verified user rating. How we rank →

Too close to call — it's a tie

Windmill

Best For

Engineers seeking full code flexibility and control over infrastructure

Teams building and collaborating on internal software

Organizations needing to automate business-critical tasks and automations

Companies requiring self-hostable orchestration for data pipelines and AI workflows

Zapier

Best For

Startups scaling their operations with automation

Small and medium businesses streamlining workflows

Enterprise organizations managing AI orchestration and governance

RevOps teams driving revenue through automation

* Verdict is based on our algorithmic scoring of publicly available data. Learn about our methodology

Windmill is best for

🎧Customer Support8.0🤖Automation & Agents7.2✍️Writing & Content6.0

Zapier is best for

🤖Automation & Agents6.1🎧Customer Support6.0💻Coding & Dev5.7

Filter by your use case:

Limitations

Windmill

Cons

Free and Open-source tier has a 10 GiB workspace object storage quota
Free and Open-source tier limits email triggers to 100 emails per day
Free and Open-source tier does not include Oracle DB and MS SQL runtimes
Free and Open-source tier lacks advanced observability features like audit logs and unlimited job run retention
Free and Open-source tier does not support SAML & SCIM for SSO

Zapier

Cons

Live Chat support is only included starting at the Professional 2,000 task tier plan and up
Technical Account Managers are included at a set threshold or as an optional add-on for Enterprise plans
Zapier Agents does not currently support app and action restrictions that may be in place on an Enterprise account
Chatbots Advanced plan has a limit of 20 chatbots and 3 knowledge sources
Chatbots Advanced plan has a conversation history limit of 30 days

Weighted Score — Adjust What Matters to You

Pick a profile or drag sliders — scores and radar update instantly on the right.

Quick profiles:

Ease of Use5

Customization5

Support5

Integration5

Compliance & Data Protection5

Performance5

Planning Quality5

Dimension Comparison

Windmill

8.0

/ 10

Zapier

8.0

/ 10

Dimension Breakdown

Ease of Use

How intuitive is onboarding, UI navigation, and day-to-day usage for the target audience?

Windmill

3.0

Zapier

7.0▲ +4.0

Customization

Calculated

How much can users tailor workflows, settings, prompts, or outputs to their needs?

Windmill

10.0▲ +2.0

Zapier

8.0

Support

How strong is the documentation, customer support, community, and learning resources?

Windmill

10.0▲ +2.0

Zapier

8.0

Integration

Calculated

How well does it connect with other tools, APIs, and workflows?

Windmill

9.0

Zapier

10.0▲ +1.0

Compliance & Data Protection

Calculated

Compliance certifications and data-protection posture, counted from ten verified signals: SOC 2 Type II, GDPR compliance, HIPAA, WCAG AA/AAA, PII redaction, licensed-only training, a published sub-processor list, a downloadable DPA, not training on user data, and a documented deletion path

Windmill

8.0▲ +1.0

Zapier

7.0

Performance

Calculated

Latency + throughput speed

Windmill

8.0

Zapier

8.0

Planning Quality

Calculated

Multi-step planning depth + replanning capability

Windmill

—

Zapier

—

Calculated = derived from structured signals (integration count, API/open-source config, compliance certs, response-time). AI = LLM-assessed from public website content. Methodology

Task Performance

Windmill

Task

Zapier

9.0

Workflow Building

9.0

10.0

Trigger Variety

9.0

8.0

Action Library

10.0

9.0

Error Handling

8.0

9.0

Scheduling Capability

8.0

9.0

Conditional Logic

8.0

9.0

Api Connectivity

9.0

Monitoring Logging

8.0

9.0

Multi Step Chains

9.0

7.0

Autonomous Execution

8.0

5.0

Data Visualization

3.0

Natural Language Queries

4.0

* Task scores (1–10) are algorithmically generated from publicly available data.

Data is sourced from public information and vendor websites. It may not always be up-to-date — verify pricing and features directly with the vendor before purchasing.Report inaccuracy

Frequently Asked Questions

Which is better, Windmill or Zapier?

Both are strong options. Windmill is a strong choice, while Zapier is a strong choice. The best choice depends on your specific use case, budget, and workflow requirements.

Is Windmill cheaper than Zapier?

Windmill starts at free (open_source model). Zapier starts at free (freemium model) with a free trial. Use the Cost Calculator above for a detailed estimate.

What are the main differences between Windmill and Zapier?

Windmill — "Code-first orchestration platform for internal software". Zapier — "Automate AI workflows, agents, and apps across 9,000+ apps". Key differences include their pricing models, platform support, integrations, and technical capabilities. See the Feature Comparison table above for a complete side-by-side breakdown.

Can I use Windmill and Zapier together?

Yes, many teams use both tools together for different purposes. Use the Stack Builder section above to combine Windmill and Zapier with other tools and save your AI toolkit.

Does Windmill or Zapier have a free plan?

Windmill is a paid tool. Zapier is available for free with a free trial. Always verify current pricing directly with the vendor.

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