Kafka UI and Monitoring Tool
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dhayha Updates to UI and bug fixes
- Display overall cluster health
- Identify missing broker nodes
- Show broker partition assignments
- Convert to Bootstrap 3
- Start of integration test suite
Latest commit 06b42d5 Feb 7, 2018
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src Updates to UI and bug fixes Feb 7, 2018
.gitignore Fix issues using Kafka brokers Sep 16, 2016
LICENSE Initial commit Mar 22, 2016
README.md Update README.md Jun 21, 2017
pom.xml Updates to UI and bug fixes Feb 7, 2018



Kafdrop is a UI for monitoring Apache Kafka clusters. The tool displays information such as brokers, topics, partitions, and even lets you view messages. It is a light weight application that runs on Spring Boot and requires very little configuration.


  • Java 8
  • Kafka (0.8.1 or 0.8.2 is known to work)
  • Zookeeper (3.4.5 or later)


After cloning the repository, building should just be a matter of running a standard Maven build:

$ mvn clean package

Running Stand Alone

The build process creates an executable JAR file.

java -jar ./target/kafdrop-<version>.jar --zookeeper.connect=<host>:<port>,<host>:<port>,...

Then open a browser and navigate to http://localhost:9000. The port can be overridden by adding the following config:


Running with Docker

Note for Mac Users: You need to convert newline formatting of the kafdrop.sh file before running this command:

    dos2unix src/main/docker/*

The following maven command will generate a Docker image:

    mvn clean package assembly:single docker:build

Once the build finishes you can launch the image as follows:

    docker run -d -p 9000:9000 -e ZOOKEEPER_CONNECT=<host:port,host:port> kafdrop

And access the UI at http://localhost:9000.

Kafka APIs

Starting with version 2.0.0, Kafdrop offers a set of Kafka APIs that mirror the existing HTML views. Any existing endpoint can be returned as JSON by simply setting the Accept : application/json header. There are also two endpoints that are JSON only:

/topic : Returns array of all topic names
/topic/{topicName}/{consumerId} : Return partition offset and lag details for a specific topic and consumer.


To help document the Kafka APIs, Swagger has been included. The Swagger output is available by default at the following Kafdrop URL:


However this can be overridden with the following configuration:


Currently only the JSON endpoints are included in the Swagger output; the HTML views and Spring Boot debug endpoints are excluded.

You can disable Swagger output with the following configuration:


CORS Headers

Starting in version 2.0.0, Kafdrop sets CORS headers for all endpoints. You can control the CORS header values with the following configurations:

cors.allowOrigins (default is *)
cors.allowMethods (default is GET,POST,PUT,DELETE)
cors.maxAge (default is 3600)
cors.allowCredentials (default is true)
cors.allowHeaders (default is Origin,Accept,X-Requested-With,Content-Type,Access-Control-Request-Method,Access-Control-Request-Headers,Authorization)

You can also disable CORS entirely with the following configuration: