Does Harness AI or Windmill have a free plan?

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

Harness AI vs Windmill

Q: Can I use Harness AI and Windmill together?

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

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

Updated May 2026

Harness AI

Harness

Intelligent AI automation for faster, safer, and smarter code delivery.

0.0(0)

FREEMIUM

90% data quality

Windmill

Windmill Labs, Inc.

Build, deploy, and monitor internal software at scale with real code capabilities.

0.0(0)

OPEN_SOURCE

93% data quality

Trust & Reliability

Harness AI

Users:1K-10K

Customers (per vendor):VMware, NCR, Jobvite +7

GDPR

SOC 2

Too Close to Call

Windmill (7.5) vs Harness AI (7.3) — difference of 0.2 points

AI Comparison Summary

Harness AI

7.3

avg score

Windmill

7.5

avg score

Windmill leads overall — particularly in Customizability.

Harness AI has an edge in Support & Ecosystem.

Based on 6 dimensions

How scores are calculated

Overall Winner

Windmill

7.5 / 10

Harness AI

Best For

Accelerating software delivery for engineering teams

Automating DevOps pipelines for developers

Improving application reliability and resilience for SREs

Enhancing security and compliance across the SDLC

Not Ideal For

Non-technical users or those without a background in software development and operations.

Organizations seeking a single, simple tool rather than a comprehensive platform.

Teams with strict requirements for all modules to be deployed entirely on-premise.

Windmill

Best For

Developers building internal tools and dashboards

Engineering teams automating data pipelines and ETL processes

Organizations needing robust workflow orchestration

Teams integrating AI agents into business operations

Not Ideal For

Non-technical users seeking purely no-code automation solutions

Simple

one-off tasks that do not require complex logic or integrations

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

Harness AI is best for

💻Coding & Dev9.0🤖Automation & Agents9.0🎧Customer Support8.0

Windmill is best for

🤖Automation & Agents8.3

Filter by your use case:

Pros & Cons

Harness AI

Pros

Provides AI automation across the entire SDLC for end-to-end efficiency.
Offers significantly faster CI builds (up to 8x) and robust CD capabilities.
Integrates comprehensive security testing and protection from code to runtime.
Enables substantial cloud cost optimization through AI-powered recommendations.
Facilitates developer self-service and improved productivity with an Internal Developer Portal.
Supports over 100 native integrations with popular DevOps tools and cloud providers.
Leverages open-source projects like Litmus Chaos and Backstage for core functionalities.

Cons

Requires technical expertise in DevOps and software engineering for effective implementation.
The DevOps Essentials package does not support on-premise deployment.
Users on the DevOps Essentials package cannot add other Harness modules.
May be an overkill for very small teams or projects with minimal DevOps requirements.

Windmill

Pros

Open-source and self-hostable
preventing vendor lock-in
Supports a wide array of programming languages for flexibility
High-performance job orchestrator for demanding workloads
Comprehensive local development experience with CLI and VS Code
Strong security features including granular RBAC and SSO
Extensive integrations with databases
cloud services
and communication platforms

Cons

Enterprise features like advanced support and autoscaling require a paid plan
Community support is the primary option for the free tier
Requires coding knowledge; not a no-code/low-code exclusive platform
Some advanced observability features are limited in the free version
Multiplayer WebIDE is an Enterprise feature

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

Output Quality5

Value for Money5

Customizability5

Support & Ecosystem5

Integration Power5

Dimension Comparison

Harness AI

7.3

/ 10

Windmill

7.5

/ 10

Your pick

Dimension Breakdown

Ease of Use

How easy it is to get started and use daily

Harness AI

6.0

Windmill

6.0

Output Quality

Quality and accuracy of generated results

Harness AI

8.0

Windmill

8.0

Value for Money

Cost vs. features and output quality

Harness AI

7.0

Windmill

7.0

Customizability

Calculated

Ability to tailor to specific needs

Harness AI

7.0

Windmill

10.0▲ +3.0

Support & Ecosystem

Documentation, community, and support quality

Harness AI

8.0▲ +2.0

Windmill

6.0

Integration Power

Calculated

Ability to connect with other tools and workflows

Harness AI

8.0

Windmill

8.0

Calculated = derived from verified integration count and API/open-source signals. AI = LLM-assessed from public website content. Methodology

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, Harness AI or Windmill?

Both are strong options. Harness AI has a rating of 0.0/5 (0 reviews), while Windmill has a rating of 0.0/5 (0 reviews). The best choice depends on your specific use case, budget, and workflow requirements.

Is Harness AI cheaper than Windmill?

Harness AI starts at free (freemium model). Windmill starts at free (open_source model). Use the Cost Calculator above for a detailed estimate.

What are the main differences between Harness AI and Windmill?

Harness AI — "Intelligent AI automation for faster, safer, and smarter code delivery.". Windmill — "Build, deploy, and monitor internal software at scale with real code capabilities.". 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 Harness AI and Windmill together?

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