RisingWave vs ksqlDB

Side-by-side comparison of RisingWave and ksqlDB to help you choose the right tool.

Feature	RisingWave	ksqlDB
Pricing	Free / Usage-based	Free / Included with Confluent
Rating	⭐ 4.5/5	⭐ 4.3/5
Categories	streaming, data-warehouses	streaming
PostgreSQL compatible	✅	❌
Streaming ingestion	✅	❌
Materialized views	✅	✅
SQL queries	✅	❌
Connectors	✅	✅
UDFs	✅	❌
SQL on Kafka	❌	✅
Pull & push queries	❌	✅
Windowing	❌	✅
User-defined functions	❌	✅

Streaming database for real-time analytics

Try RisingWave →

Event streaming database for Kafka

Try ksqlDB →