Kestra vs Zapier
Kestra and Zapier are both workflow automation software. Kestra is open source under Apache-2.0, with 30k GitHub stars. Zapier is a commercial product from Zapier.
Which to pick
- Pick Kestra when
- You need Airflow-class orchestration but want YAML flows, any language, and a UI non-Python people can use.
- Pick Zapier when
- A non-technical team wants to connect SaaS apps quickly and the widest app catalogue matters most.
Side by side
An orchestration platform where workflows for data, infrastructure and business processes are declared in YAML and run on schedules or events, with a web UI.
No-code automation connecting thousands of apps with triggers and actions, plus tables, forms and AI steps.
Features such as SSO and multi-tenancy are in the paid enterprise edition.
Task-based pricing gets expensive at volume, and complex logic is awkward.
Production-ready (both)
Self-hosted server and cloud service
Cloud service
Java, Vue, TypeScript and PostgreSQL
Not published
Open source, Apache-2.0 (permissive)
Closed source, sold by Zapier
You can build it into a product you sell, as long as you keep its copyright notice.
Closed source: you use it under the maker's terms and cannot change or resell the code.
30k GitHub stars
1.5k Wikipedia readers a month on phones
Established: started 7 years ago, latest release v2.0.7.
Not known
Other comparisons
More workflow automation tools
Both sides were judged on 2026-11-03 from makers' descriptions, Wikipedia, READMEs and GitHub data. License, age and popularity lines are worked out directly.