Open alternatives4
Open-source apps that replace Fivetran, Airflow and more
Kestra is an open-source platform for scheduling and chaining data, AI and infrastructure workflows, built around YAML definitions and a web UI. It is aimed at data and engineering teams who need to automate multi-step jobs.
Jitsu collects event data from websites, apps and servers and sends it to data warehouses and other tools. It is aimed at data teams who want to run that pipeline themselves or use a hosted version.
Bruin is a command-line tool that moves data from other sources into a database, transforms it with SQL, Python or R, and checks its quality. It is for data engineers and analysts who want these steps in one framework.
Trench is a system for recording and querying events that happen in apps and websites, such as button clicks or sign-ups. It is aimed at teams that want to run their own analytics pipeline and keep their data.
What's missing
What people still miss here, and wish existed. Upvote what matters to you.
Before you build
Planning something for data pipelines? See what exists first, so you can reuse parts or explain what's different. Paste this into any AI assistant:
Fix the list itself
A project or closed app missing from this list, or a mistake on it? These open a short form on GitHub, and a mod reviews it. To say what a project can't do, use What's missing.
About this page
Replaces fully means it does the main job of these apps; Replaces partly means it covers some of it.
Licenses: every project here uses an open-source license (what each one means). Open core means some parts are paid or under another license.
GitHub stars are shown for reference. They measure popularity, not whether it replaces anything.
Verified means r/TrueOpenSource mods checked it: open-source license, maintained, and it really does the job.
How Open Source Everything works