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LazyKafka

Dealing with Kafka topics and groups can be a real mission using just the standard scripts. I looked at the web tools available and thought, 'Yeah, nah—too much effort.'

If you're like me and can't be bothered setting up a local web UI just to check a record, here is LazyKafka. It’s the terminal app that does the hard work so you don't have to.

License Rust

Features

Demo

Topic Management

Browse, search, and manage Kafka topics with ease.

topic-management

  • Browse all topics in your cluster
  • Real-time search filtering
  • View topic details (partitions, replication factor, configs)
  • Delete topics with confirmation
  • Add partitions to scale your topics

Message Browser

Explore records with powerful filtering and pagination.

message-management

  • Paginated loading (configurable page size)
  • Multiple sort modes: Newest First, Oldest First, Offset Asc/Desc
  • Search by key, value, or headers
  • Filter by partition
  • View full record details (key, value, headers, timestamp, offset)

Consumer Group Management

Monitor consumer groups and their state.

consumer_group

  • List all consumer groups
  • View group details: state, protocol, members
  • Inspect member assignments
  • Track committed offsets per topic/partition

Protocol Logging

Debug Kafka interactions with built-in protocol logging.

Screenshot 2026-01-19 at 11 29 18 pm
  • Live logging of API requests/responses
  • Correlation ID tracking
  • Response time monitoring
  • Error code visibility

Cluster Monitoring

Keep an eye on your connection and cluster stats.

Screenshot 2026-01-19 at 11 32 21 pm
  • Real-time connection status
  • Bytes sent/received statistics
  • Multi-broker support

Installation

From releases

Download the executable file compatible with your OS from the releases page here.

https://github.com/nvh0412/lazykafka/releases

Linux / macOS

# Download the binary (replace with your platform)
# Make it executable
chmod +x lazykafka-*
# Move to a directory in your PATH
sudo mv lazykafka-* /usr/local/bin/lazykafka

Windows

Download the .exe file and add it to your PATH.

From Source

git clone https://github.com/nvh0412/lazykafka
cd lazykafka
cargo build --release

Homebrew (coming soon)

brew install lazykafka

Usage

# Connect to local Kafka
lazykafka

# Connect to specific broker(s)
lazykafka -b kafka1:9092 -b kafka2:9092

# With custom client ID and timeout
lazykafka -b localhost:9092 --client-id my-client --timeout 30

Keyboard Shortcuts

Global

Key Action
q Quit
Tab Switch between Topics/Consumer Groups
l Focus logs panel
/ Search
Esc Cancel/Back

Topics

Key Action
Enter View records
i View topic details
d Delete topic
p Add partitions

Records

Key Action
j/k or ↑/↓ Navigate
s Cycle sort mode
f Filter by partition
n/p Next/Previous page
i View record details
r Refresh

Logs

Key Action
p Pause/Resume
c Clear logs
f Filter logs
g/G Jump to top/bottom

Configuration

Option Default Description
-b, --broker localhost:9092 Kafka broker address (repeatable)
--client-id lazykafka-client Client identifier
--timeout 10 Connection timeout in seconds

Roadmap

  • Topic creation UI
  • Producer UI for sending test messages
  • Avro/Protobuf schema support
  • Multi-cluster management
  • Record export (JSON/CSV)
  • Real-time tail mode

Contributing

Contributions are welcome! Please feel free to submit a Pull Request.

License

MIT

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