Apache Kafka ksqlDB
OPEN SOURCE
Event streaming database purpose-built for stream processing applications.
About
ksqlDB is an event streaming database purpose-built for stream processing applications. It provides a simple and powerful SQL interface for processing data in Kafka topics.
Pricing
Pricing Type
Open Source
Free tier available
Billing
One-time payment
Last checked: February 20, 2026
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Key Facts
Categories
Platforms
Web
Company
Confluent
Founded
Founded in 2017
Country
Global
Language
English