Windmill vs Clay

A detailed comparison to help you choose between Windmill and Clay.

Windmill

Windmill

Open-source workflow automation for developers

Clay

Clay

AI-powered data enrichment and outreach

Rating3.9 (550 reviews)4.8 (658 reviews)
Pricing Modelfreemiumfreemium
Starting PriceFree tier availableFree tier available
Best ForEngineering teams building internal tools and data pipelines with codeSales and growth teams doing AI-powered outbound prospecting
Free Tier
API Access
Team Features
Open Source
Tags
open sourcefree tierapi access
free tierteam features
Visit Windmill →Visit Clay →

Windmill

Pros

  • + Fully open-source
  • + Self-hostable
  • + Code-first with UI wrapper

Cons

  • - Developer-focused — not no-code
  • - Setup required
View full Windmillreview →

Clay

Pros

  • + 75+ data enrichment sources
  • + AI personalization at scale
  • + GTM workflow automation

Cons

  • - Complex to master
  • - Credit-based pricing
View full Clayreview →

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Windmill vs Clay — Comparison 2026 | ToolSpotter