Free, open-source alternatives to Segment
Customer data pipeline from Twilio. 2 apps you can run yourself instead of Segment, sorted by how well they replace it. Each one is open source, so your data stays with you.
RudderStackBest match
Collect, unify, transform, and store your customer data, and route it to a wide range of common, popular marketing, sales, and product tools (alternative to Segment).
PostHog
Product analytics, session recording, feature flagging and a/b testing that you can self-host (alternative to Mixpanel, Amplitude, Heap, HotJar, Optimizely).
Side by side
| App | Stars | License | Activity | Runs on |
|---|---|---|---|---|
| RudderStack | 4,498 | Elastic-2.0 | Docker, Kubernetes, Go | |
| PostHog | 40,247 | MIT | Python |
Why replace Segment?
Segment works, but your data lives in someone else's account, the price can change at any time, and features can disappear. An open-source app you run yourself is yours: you choose where it runs, who can see the data, and when to update.
Questions
What is the best free alternative to Segment?
RudderStack is the closest open-source replacement for Segment in our list. PostHog are worth a look too, depending on what you need.
Can I self-host an alternative to Segment?
Yes. All 2 apps on this page are open source and can run on your own server, usually with Docker, or on a managed host that installs them for you.