Activepieces vs Windmill

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

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Verdict: Windmill wins

Windmill scores 4.2/5, edging out Activepieces at 4.0/5. Engineering teams who want code-first internal tools, workflows and APIs on infrastructure they control, with no per-execution billing.

Activepieces

Activepieces

Open-source Zapier alternative

Windmill

Windmill

Open-source workflow automation for developers

Rating4.0 (1 review)4.2 (1 review)
Pricing Modelfreemiumfreemium
Starting PriceFrom $16/moFree tier available
Best ForCost-conscious teams and security-sensitive orgs that want Zapier-style workflows with true open-source licensing and self-hosting.Engineering teams who want code-first internal tools, workflows and APIs on infrastructure they control, with no per-execution billing.
Free Tier
API Access
Team Features
Open Source
Tags
open sourcefree tier
open sourcefree tierapi access
Visit Activepieces →Visit Windmill →

Activepieces

Pros

  • + MIT-licensed and self-hostable on every tier — the only truly open-source platform in this batch (community edition on GitHub)
  • + Pricing is flat and predictable: Plus is $20/mo flat for 10,000 credits with $0.007/credit overage at time of writing (activepieces.com/pricing)
  • + Docker self-host came up in under fifteen minutes in my test, and flows imported cleanly between cloud and self-hosted
  • + Bring-your-own AI keys on Plus means model spend goes to your provider unmarked-up
  • + Same piece code runs cloud or self-hosted, so community connector fixes apply everywhere (760+ integrations claimed)

Cons

  • - Connector depth trails Zapier badly in the long tail — two niche apps I needed had no piece and no ready HTTP template
  • - Free plan resets credits daily and pauses work when exhausted; unusable for anything production-grade
  • - Feature parity between self-hosted community and cloud is incomplete — one agent feature I wanted was cloud-only at time of writing
  • - Advanced governance (audit logs, SCIM, secret managers, custom RBAC) sits behind custom Ultimate pricing
  • - Small team with modest funding (~$1.55M reported) — rapid shipping means UI and docs drift out of sync in places
View full Activepiecesreview →

Windmill

Pros

  • + Script-first model: typed functions become endpoints, jobs and flow steps with auto-generated UIs — my nightly pipeline was rebuilt in one Docker session
  • + Free self-hosted tier carries unlimited executions, not a trial disguised as a plan
  • + Rust execution engine kept orchestration overhead sub-second between flow steps in my tests
  • + Worker-group model scales throughput with replicas and tag routing instead of redesigns
  • + Transparent per-unit Enterprise pricing ($20/builder, $10/non-builder, $50/worker) with published SLA terms

Cons

  • - Zero no-code path — teams without developers cannot use it at any price
  • - Prebuilt Community Edition images bundle proprietary Windmill Labs terms (no resale/wrapping/modifying), separate from the AGPLv3 source build
  • - Worker groups and role configuration have a real learning curve before the platform pays off
  • - Small vendor (under twenty employees in 2024 reporting, ~$15M raised) relative to the incumbents it replaces
  • - Flow durability is lighter than Temporal for mission-critical long-running orchestration
View full Windmillreview →

Frequently Asked Questions

Which is better, Activepieces or Windmill?▼
Windmill scores higher at 4.2/5 vs 4.0/5 for Activepieces, making it the better-rated option in our comparison.
What is the difference between Activepieces and Windmill?▼
Activepieces: Activepieces is an open-source, no-code automation tool (a Zapier alternative) for connecting apps and building AI agents. You can self-host it; cloud plan is free, then from $16/mo. Windmill: Windmill is an open-source platform that turns scripts in Python, TypeScript, Go and other languages into workflows, internal apps and scheduled jobs. It is aimed at developers who prefer code over drag-and-drop builders.
Is Activepieces or Windmill more affordable?▼
Activepieces starts at €16/mo, Windmill starts at €0/mo. Check the comparison table above for current pricing.

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