Windmill vs Zapier

Windmill is an open-source workflow engine and developer platform for building endpoints, workflows and user interfaces. It is aimed at teams making internal software across engineering, data, sales, support and marketing. Scripts can be written in TypeScript, Python, Go, PHP, Bash, C#, SQL, Rust, Ruby and R, among other languages. Windmill combines a script editor, low-code flow builder, and low-code, React or Svelte app builders. Scripts and flows can be triggered by webhooks, schedules, HTTP routes, queues or an open API. Its Hub lists more than 200 resource types, including GitHub, Slack, AWS, BigQuery and PostgreSQL; users can also define custom resource types with schemas. Local development through the CLI and Git sync support version control and deployment workflows. Self-hosting is supported. The free and open-source plan is free and includes three workspaces, 50 users, 10 GiB of workspace object storage and 100 guest app users per 30 days. Enterprise is $120 a month and includes a month-long trial. Enterprise features include granular permissions, RBAC, secret management, OAuth, SSO and audit logs.

Zapier connects apps through automated workflows called Zaps. Each Zap starts with a trigger and carries out one or more actions; a task counts when a successful action moves data or completes work. The service offers automation across more than 9,000 apps, with multi-step workflows, conditional logic and webhook triggers. The Free plan costs nothing and includes 100 tasks per month, unlimited Zaps limited to two steps, one user and a 15-minute polling interval. Polling for new data does not count toward tasks, but successful actions do. Without pay-per-task billing, workflows pause at the task limit until the next usage period. Professional starts at $19.99 per month and Team starts at $69.00 per month; both offer free trials. Team includes 25 users and shared Zaps, folders and app connections. Annual billing has a lower monthly fee, with a 33% saving shown in the pricing selector. Zapier is web-based and headquartered in San Francisco, California.