Every free workflow automation tier that clears our bar in 2026: 5 offers meet the criteria and 2 are demoted with a named reason. Verified pricing, recorded changes, and a published ranking method.
Free OSS (AGPL-3.0). Self-hosted workflow automation (Zapier alternative). Connect services like Slack, GitHub, Google Sheets. No programming knowledge required Best for open source projects.
Workflow automation — 100 tasks/month, unlimited Zaps but limited to 2-step only (one trigger + one action), 2,500 table records, 10 form pages Best for unlimited usage needs.
Appointment scheduling for 1 staff member, 1 service type, with calendar sync free
Developer-focused workflow automation — 100 credits/month, 3 active workflows, 3 connected accounts. Building/testing workflows in the editor is free
Visual workflow automation (formerly Integromat) — 1,000 credits/month (renamed from operations; each module action counts as one credit), 512 MB data transfer/mo, 2 active scenarios, 15-minute minimum interval between scheduled runs, 5 MB max file size, 5-minute max scenario runtime, 7-day execution log retention
Open-source durable workflow orchestration library (DBOS Transact) — free forever for TypeScript, Python, Go, Java, Kotlin. Self-host with PostgreSQL backend; community support via Discord. Managed DBOS Cloud is paid-only (Pro from $99/mo: 2 seats, 3 apps, 1M checkpoints/mo). Note — 2026-04-19: DBOS Cloud free tier (1 Firecracker microVM per app, 1M service calls/mo) no longer appears on dbos.dev/pricing. Only the open-source DBOS Transact library remains free; managed cloud is paid-only starting at Pro $99/mo. Description updated accordingly; vendor remains in index under the open-source tier.
| Vendor | Free Tier | Key Limits | Stability | Verified |
|---|---|---|---|---|
| Automatisch | Free OSS | Free OSS (AGPL-3.0). Self-hosted workflow automation (Zapier alternative). Connect services like Slack, GitHub, Google S... | — | 2026-07-31 |
| Zapier | Free | Workflow automation — 100 tasks/month, unlimited Zaps but limited to 2-step only (one trigger + one action), 2,500 table... | stable | 2026-07-27 |
| Zoho Bookings | Free | Appointment scheduling for 1 staff member, 1 service type, with calendar sync free | stable | 2026-07-30 |
| Zoho Sign | Free | Electronic signatures with 5 documents/month free forever | stable | 2026-08-26 |
| Pipedream | Free | Developer-focused workflow automation — 100 credits/month, 3 active workflows, 3 connected accounts. Building/testing wo... | — | 2026-07-30 |
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