Open source workflow automation you can host yourself: connect APIs, run scheduled jobs and react to webhooks without per-task pricing. Activepieces is the most Zapier-like experience; Kestra and Apache Airflow lean towards data pipelines; Huginn builds agent-style watchers.
Open source alternatives to Zapier
Open source workflow automation you can host yourself: connect APIs, run scheduled jobs and react to webhooks without per-task pricing. Acti…
Compare
| Program | License | Self-hosted | Last release | Activity |
|---|---|---|---|---|
| Activepieces | — | Yes | Oct 28, 2026 | Nov 2026 |
| Automatisch | — | Yes | Aug 8, 2025 | Feb 2026 |
| Huginn | MIT | Yes | Nov 5, 2026 | Nov 2026 |
| Kestra | — | Yes | — | — |
| Apache Airflow | Apache-2.0 | Yes | Sep 17, 2026 | Nov 2026 |
| StackStorm | Apache-2.0 | Yes | Jan 12, 2026 | Oct 2026 |
| Dagu | — | Yes | — | — |
| BookBounty | MPL-2.0 | Yes | Aug 21, 2026 | Aug 2026 |
| changedetection.io | Apache-2.0 | Yes | Nov 5, 2026 | Nov 2026 |
| ChiefOnboarding | AGPL-3.0 | Yes | Nov 1, 2026 | Nov 2026 |
| Cronicle | — | Yes | — | — |
| Cronmaster | AGPL-3.0 | Yes | Oct 25, 2026 | Oct 2026 |
| Dagu | — | Yes | — | — |
| flowctl | Apache-2.0 | Yes | Sep 7, 2026 | Oct 2026 |
| Fredy | Apache-2.0 | Yes | Nov 4, 2026 | Nov 2026 |
| gocron | MIT | Yes | Oct 23, 2026 | Oct 2026 |
| Healthchecks | BSD-3-Clause | Yes | Oct 27, 2026 | Nov 2026 |
| Kibitzr | MIT | Yes | May 5, 2025 | Apr 2026 |
| Leon | MIT | Yes | May 1, 2023 | Nov 2026 |
| OliveTin | — | Yes | — | Oct 2026 |
Activepieces
v0.92.3-hotfix.2
★ 25,378
Automatisch
v0.15.0
★ 14,008
Huginn
Build agents that read the web, watch events, and act for you on your own server.
v2026.11.05.2
★ 50,294
Kestra
Apache Airflow
v3.3.2
★ 47,367
StackStorm
v3.9.0
★ 6,557
Dagu
BookBounty
Finds and downloads missing Readarr books automatically via Library Genesis.
v0.2.15
★ 294
changedetection.io
v0.70.1
★ 35,520
ChiefOnboarding
v2.5.1
★ 934
Cronicle
Cronmaster
Web UI to manage cron jobs and scripts on your host, with logs and SSO.
v2.4.1
★ 1,398
Dagu
flowctl
v0.15.0
★ 346
Fredy
v30.1.4
★ 1,619
gocron
Schedules YAML-defined cron jobs for self-hosters, with a web UI and run history
v0.14.1
★ 626
Healthchecks
v5.0.3
★ 10,499
Kibitzr
v8.0.1
★ 721
Leon
★ 17,644
OliveTin
★ 1
Huginn
Build agents that read the web, watch events, and act for you on your own server.
v2026.11.05.2
★ 50,294
Kestra
Apache Airflow
v3.3.2
★ 47,367
StackStorm
v3.9.0
★ 6,557
Dagu
BookBounty
Finds and downloads missing Readarr books automatically via Library Genesis.
v0.2.15
★ 294
changedetection.io
v0.70.1
★ 35,520
ChiefOnboarding
v2.5.1
★ 934
Cronicle
Cronmaster
Web UI to manage cron jobs and scripts on your host, with logs and SSO.
v2.4.1
★ 1,398
Dagu
flowctl
v0.15.0
★ 346
Fredy
v30.1.4
★ 1,619
gocron
Schedules YAML-defined cron jobs for self-hosters, with a web UI and run history
v0.14.1
★ 626
Healthchecks
v5.0.3
★ 10,499
Kibitzr
v8.0.1
★ 721
Leon
★ 17,644
OliveTin
★ 1
How to choose
Compare the options on what matters for your case: the license (if you run a business, check commercial use), the platforms you already operate, and how actively each project releases. Every program above links to its official project page, release notes and source code.
Questions
Do they have the same integrations as Zapier?
Fewer turnkey connectors, but HTTP requests and webhooks cover almost anything — with more control.