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For Teams Ready to Upgrade from Confluent
Get Confluent's features plus Pulsar queuing and lakehouse integration—for 95% less.
95% Lower Cost
Less money on infrastructure cost with Ursa Engine
Zero Lines of Code
Native Kafka, not just compatible — zero code changes.
Flexible by Default
Highly adaptive setup with native dual-protocol support
• POWERED BY THE URSA ENGINE
Streaming + Queuing. Finally Together.
With Confluent, you need Kafka for streaming and RabbitMQ or SQS for queuing. That's two platforms, two bills, two headaches. StreamNative's Ursa Engine supports both Pulsar and Kafka APIs.
Confluent Reality Check: Still Kafka-only after all these years. Need queuing? That'll be another vendor.
• STREAMLINE YOUR STACK
Built on Open Standards. No Lock-In. Ever.
Keep your Kafka streaming workloads. Add Pulsar for queuing. Ursa handles both natively—no bridges, no hacks, no extra bills.
Exclusive
One consumer receives all messages. Ensures strict ordering for single-worker processing.
Shared
Messages are distributed via round-robin across multiple consumers. Ideal for load balancing and horizontal scaling.
Failover
Uses an active-standby model. Automatically switches to a backup for high availability and disaster recovery.
Key-Shared
Messages are partitioned by key across a consumer group. Provides guaranteed per-key ordering at scale.
• OPEN TABLE FORMATS, NATIVE
Your Kafka Topics ARE Lakehouse Tables
Ursa Engine writes streaming data directly to Iceberg and Delta Lake — no connectors, no ETL, no separate copy step. Confluent Tableflow duplicates your data. Ursa makes it native.
Translation: No more connector jungle. Your data engineers get their weekends back.
• LET'S TALK MONEY
Same Workload. 10x Less Cost.
We ran the numbers. StreamNative's Ursa Engine handles a 5 GB/s Kafka workload for ~$54/hour. Confluent Cloud? Let's just say your finance team won't be happy.
• YOUR CLOUD, YOUR RULES
100% Kafka Native. 0% Lock-In.
Worried about the IBM acquisition? You're not alone. StreamNative's Ursa Engine is a native fork of Apache Kafka — open protocols, open table formats, no proprietary APIs. Your data stays yours.
Plot Twist: It's just Kafka. Point your clients at a new bootstrap address and you're done.
Confluent vs StreamNative
See how the Ursa Engine stacks up against Confluent's Kafka-only approach.
The Ursa Engine Advantage
Built entirely on open standards—Kafka & Pulsar protocols, Iceberg & Delta Lake formats. No proprietary APIs, no vendor lock-in. Just open technology that works.
Find Out Why Our Customers Love Us
"Our journey with Apache Pulsar and the knowledge we have built together with StreamNative have helped us build a central messaging platform that powers the delivery of millions of packages."
René Laplaine, Manager IT Business Platforms at Intelcom
Customer since 2019
"We trust StreamNative to help us manage the entire lifecycle of data across our enterprise, which supports billions of e-commerce interactions across the globe. There's really no one ahead of StreamNative when it comes to unified messaging and streaming in the cloud."
Ankush Goyal, VP of Engineering at Narvar
Customer since 2019
"Pulsar is unique in that it covers many use cases, while also serving as a viable alternative to many technologies currently in use. It covers all of our use cases and lets us focus on building an excellent system."
Greg Methvin, Iterable
Customer since 2019
Trusted by industry leaders