Prefect
Python workflow orchestration framework with a managed cloud for scheduling and monitoring pipelines.
Updated · AppBreakup editorial · Web, Linux, macOS, Windows, Self-hosted
Is Prefect free?
Yes, free and open source
- Starter plan:
- $100/month
- Free plan:
- Hobby, free forever
Checked on Prefect's site Nov 8, 2026
Full Prefect pricing and plansSwitch from Prefect to
All 6
Apache AirflowOpen source
Astronomer (Astro)Starting price: Deployments from $0.35/hr (Developer)
DagsterSolo plan: $10/month plus credits
- Verified facts
- 5 of 5
- Alternatives ranked
- 6
- Approved reviews
- 0
- Visits sent from here
- 0
About Prefect
Prefect is a workflow orchestrator for data, machine learning and AI agent pipelines written in Python. Instead of learning a new DAG syntax, you add a decorator to ordinary Python functions and Prefect handles scheduling, retries, caching, logging and recovery from failures. Workflows can run on your own machines, Kubernetes, ECS, or Prefect's serverless compute, while the Prefect Cloud dashboard shows runs, sends alerts on failures or late runs, and manages deployments. The framework is open source under Apache 2.0 and can be self-hosted with its own server and UI. Prefect Cloud has a free Hobby tier for a couple of users and a few deployments, then paid plans that add more users, deployments, single sign-on and audit logs. Compared with Airflow, it feels lighter for Python developers and is easier to test locally, but its ecosystem of ready-made integrations is smaller. The company also maintains FastMCP, a popular framework for building MCP servers.
Best for: Python teams who want orchestration without rewriting code into a separate DAG framework.
Prefect pricing (checked Nov 8, 2026)
Each line is quoted from Prefect's own site, with the page it came from.
| Plan or term | What it says | Checked | Source |
|---|---|---|---|
| Free plan | Hobby, free forever | Nov 8, 2026 | prefect.io |
| Free plan limits | 2 users, 5 deployments | Nov 8, 2026 | prefect.io |
| Starter plan | $100/month | Nov 8, 2026 | prefect.io |
| Team plan | $100 per user/month | Nov 8, 2026 | prefect.io |
Pros and cons
What works
- Plain Python with a decorator, little new to learn
- Free hosted Hobby tier and a self-hostable open source server
- Runs on your own compute, Kubernetes or serverless
Why people leave
- Free cloud tier is limited to 2 users and 5 deployments
- Smaller integration ecosystem than Airflow
- Paid plans jump quickly from a flat fee to per-user pricing
Prefect vs Apache Airflow, Astronomer (Astro) and Dagster
From each app's listing and the prices verified on its own site. A dash means we haven't verified it yet.
| Attribute | Prefect | Apache Airflow | Astronomer (Astro) | Dagster |
|---|---|---|---|---|
| Pricing | Open source | Open source | Paid | Open source |
| Verified price | $100/month | — | Deployments from $0.35/hr (Developer) | $10/month plus credits |
| Free plan | Hobby, free forever | Free app | No | Free app |
| Open source | Yes | Yes | No | Yes |
| Self-hostable | Yes | Yes | No | Yes |
| Platforms | Web, Linux, macOS, Windows, Self-hosted | Linux, Self-hosted, Web | Web, Self-hosted | Web, Linux, macOS, Windows, Self-hosted |
Top Prefect alternatives
See all 6- 1Apache Airflow68.8
The industry standard with the largest integration catalogue and many managed hosting options.
- 2Astronomer (Astro)64.8
Managed Airflow if your team wants a hosted orchestrator with support but prefers the Airflow DAG model.
- 3Dagster64.8
Models pipelines around data assets, with lineage and data quality checks built in.
- 4
Argo Workflows59.4Free Kubernetes-native engine where each step is a container, suited to platform teams already on k8s.
- 5
Flyte57.5Also Python-first, but with typed tasks, caching and Kubernetes scaling aimed at ML and AI pipelines.
Why people left Prefect
In reviewers' own words, from reviews of the apps they moved to. These are their opinions, not ours.
No switching stories yet. If you moved away from Prefect, review the app you switched to and tell us why.
Reviews
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Prefect: common questions
What is Prefect?
Prefect: Python workflow orchestration framework with a managed cloud for scheduling and monitoring pipelines. Best for python teams who want orchestration without rewriting code into a separate DAG framework. Available for Web, Linux, macOS and Windows, and you can host it yourself.
Is Prefect free?
Yes. Prefect is free, open-source software that you can host yourself.
How much does Prefect cost?
Prefect is free and open source. Free plan: Hobby, free forever; Free plan limits: 2 users, 5 deployments; Starter plan: $100/month; Team plan: $100 per user/month. Checked on Prefect's own site, November 2026.
Is Prefect open source?
Yes. The source code is on GitHub at PrefectHQ/prefect. You can also run it on your own server.
What platforms does Prefect run on?
Prefect is available for Web, Linux, macOS, Windows and Self-hosted.
What are the best alternatives to Prefect?
The highest-ranked Prefect alternatives right now are Apache Airflow, Astronomer (Astro) and Dagster. See the full ranked list for pricing, platforms and verified facts.
Prefect vs Apache Airflow: what's the difference?
Both Prefect and Apache Airflow are free and open source. Only Prefect runs on macOS and Windows.