RudderStack
Open sourceSelf-hostBest for: Teams who want a Segment-compatible CDP they can self-host or run on managed cloud
RudderStack is the most direct Segment alternative โ same Track / Identify / Group API, 200+ destinations, open-source self-host or managed cloud. Often called "Segment alternatives" by reviewers because the API compatibility is intentional.
Free Community open source; Free Cloud up to 1M events/mo; paid tiers from $400/mo
Pros
- โSegment-compatible API โ minimal migration code
- โOpen source โ self-host for free
- โStrong warehouse-first integration
Cons
- รUI less polished than Segment's
- รSelf-host requires real infra work
- รSmaller destination ecosystem than Segment