Kafdrop is a web UI for viewing Kafka topics and browsing consumer groups.
Kafdrop addresses the need to inspect and manage Kafka clusters through a visual interface. It runs as a lightweight Spring Boot application that connects to Kafka brokers via the admin API, eliminating the requirement for ZooKeeper connections. The tool displays broker information, topic configurations, partition assignments, consumer group offsets and lag, and allows users to browse individual messages with support for multiple encoding formats including JSON, plain text, Avro, and Protobuf.
Kafdrop suits operators and developers who need quick visibility into Kafka cluster state and message content without building custom tooling. It works well for debugging consumer groups, inspecting topic configurations, and exploring message payloads during development and troubleshooting. The tool is particularly useful in containerized environments, with straightforward deployment via Docker or Kubernetes. It supports security features including SASL and TLS for broker connections, basic authentication for Schema Registry integration, and ACL viewing. The project also supports Azure Event Hubs as an alternative to self-hosted Kafka, making it applicable to cloud-based event streaming scenarios.
The project maintains steady activity with regular updates addressing bug fixes and feature enhancements. Development includes responsiveness to user-reported issues and incorporation of community feedback into releases. The maintainers actively support multiple deployment scenarios and continue expanding message format support and integration capabilities.
