Stream reliably,
Scale effortlessly.

Responsive is a stream processing solution that brings disaggregated state, autoscaling, observability and enterprise-grade support to Kafka Streams. Eliminate rebalance instability, scale to TBs of state and automate your Kafka Streams operations.

Product Overview

Transform Every Layer of Your Kafka Streams Stack.

Stop fighting with restoration, rebalancing, and resource management. Responsive's three-layer solution separates state from compute, automates operations, and maintains 100% compatibility with your existing code.

Java SDK

Eliminate Downtime With One Line of Code.

End long rebalancing and restorations by replacing RocksDB with battle-tested remote storage, unlock unlimited throughput with async processing, and gain advanced features like TTL. All while maintaining complete Kafka Streams compatibility.

Remote state for replacing RocksDB with MongoDB

Async Processing for parallelizing high-latency operations

Time-to-Live for limiting storage space

code diff

Control Plane

Your Mission Control for Hands-Free Operations.

Stop guessing at capacity and manually managing scale. Our purpose-built control plane automatically optimizes your Kafka Streams infrastructure based on real-time metrics. Observability included.

Autoscaling policies for declaratively specifying infrastructure requirements

Metrics API for integrating our observability platform into your APM of choice

RS3 Storage

Robust state at cloud native prices.

RS3 combines the reliability of distributed databases with the cost structure of object storage, reducing your state storage costs by 7x while improving availability.

RS3 is the Responsive Streaming Storage Service built from the cloud up

SlateDB is the open source technology behind our innovations

cost comparison

Support

For when technology doesn't solve the problem.

The world’s foremost team of Kafka Streams experts are on your side, with contributors and committers available 24/7.

99.99% Uptime. 0% Pain.

Focus on your code,
Responsive keeps it streaming.

Responsive makes operating Kafka Streams as easy as writing the business logic for your event driven application.

99.99% Availability
Separating storage and compute means you are no longer deploying a distributed database embedded in your app.
Hands Free Operations
Responsive takes care of finding the right capacity for your application and autoscales based on real time data.
Limitless Scale
Break free of Kafka partition limitations and don't think twice about storing more data. Our SDK and RS3 ensure both compute and storage are ready to scale.

Case Study

Metronome delivers usage-based billing with Responsive.

To ingest, process and serve over tens of thousands of billing events per second with strict transactional guarantees, Metronome designed their event-driven architecture using Responsive and Kafka Streams.

99.999%

Uptime Since Onboarding

3x

Max Throughput Growth

100s

Engineering Hours Saved

Powered by Apache Kafka Streams

Responsive is built by top developers on the Kafka Streams project, the premier stream processing technology

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Michelin
Twilio
Salesforce
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Built for production

Whatever your setup, we've got you covered.

We engineered Responsive to work for your company no matter whether you are deployed in a locked on-premise environment or a startup that is all-in on the public cloud.
Bring your own Kafka
Bring any Kafka cluster

Responsive supports all major implementations of Apache Kafka Brokers, whether deployed in the cloud or managed on your own hardware.

Secure & Compliant
Secure & Compliant

SOC II compliance, annual penetration tests, BYOC, and the ability to bring your own store means your data never leaves your network. Your CISO will love us.

Ready to build invincible Kafka Streams apps?

Responsive makes operating Kafka Streams as easy as writing the business logic for your event driven application.