The best Customer data platforms
Every option ranked — open-source, self-hostable, and commercial — by our transparent Sovereignty Score, with honest trade-offs so you choose what fits you, not us.
The pipe that collects events once and fans them out to every other tool. Billed per event or per tracked user, so it scales with your product's success.
L3Infrastructure — layer 3 of the AI stack- 1
RudderStack
Top pickCommercialWarehouse-first customer data — and its licence is not what lists claim.
Self-hostable free within ELv2 terms. Cloud tiers are paid, with a free tier. · in our Segment comparison →
What is RudderStack? →68sovereignty - 2
OpenTelemetry Collector
Open sourceThe vendor-neutral standard — if you are willing to build the rest.
Free and open source. CNCF project; you supply the infrastructure. · in our Segment comparison →
What is OpenTelemetry Collector? →96sovereignty - 3
Jitsu
Open sourceMIT-licensed event pipeline, no licence footnotes.
Free and open source. Jitsu Cloud is a paid hosted option. · in our Segment comparison →
What is Jitsu? →94sovereignty - 4
Snowplow
Open sourceThe raw event stream, with schemas enforced at collection.
Open-source core free and self-hostable. Snowplow BDP is a paid managed product. · in our Segment comparison →
What is Snowplow? →89sovereignty - 5
PostHog
Open sourceSkip the pipe — the analytics tool collects its own events.
Generous free tier on cloud; self-hostable at no licence cost for the MIT core. · in our Segment comparison →
What is PostHog? →85sovereignty
Replacing a specific tool?
Head-to-head comparisons for each popular customer data platforms product.
Straight head-to-heads
Two customer data platforms tools, side by side — verified facts and a plain verdict.