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Kafma is a desktop Kafka client and IDE built to keep the consume–inspect–produce loop in one workspace and clone remote topics—with their schemas and optional field masking—into a local cluster for testing.
Kafma automatically decodes Avro and Protobuf, replays or forwards messages, and lets you draft, diff, and validate schemas before publishing. Use the same app to manage topics and consumer groups, diagnose lag, reset offsets, and connect to self-hosted Kafka, Confluent Cloud, or Amazon MSK.
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What you can do with Kafma
Producer and consumer, one tab
Consume, inspect, edit, and produce messages without switching views.
Decode, replay, and forward messages
Decode Avro and Protobuf automatically, then replay, forward, or export what you find.
Edit schemas like code
Draft a version, diff it against the live one, and check compatibility before publishing.
Replay prod bugs on your laptop
Clone topic configuration, schemas, and messages locally—with optional field masking.
Diagnose a consumer that fell behind
Read total lag, max lag, and the trend to tell a slow consumer from a stopped one.
Create and configure topics
Start from a preset, or set partitions, retention, and cleanup policy yourself.
Kafma runs on macOS, Windows, and Linux. Download Kafma to get started, or see what’s new in the changelog.