Kafka-compatible streaming. Stateless brokers. S3 storage. Self-hosted.
Stateless Kafka on S3, compatible with your clients.
Run Kafka APIs without stateful disks. Kafscale stores log segments in S3, keeps brokers ephemeral, and uses etcd for metadata so you scale fast and recover cleanly.
Why teams adopt Kafscale
Stateless brokers
Spin brokers up and down without disk shuffles. S3 is the source of truth.
S3-native durability
Immutable segments, predictable retention, and lifecycle policies in object storage.
etcd metadata
Offsets, topics, and group state live in etcd for fast consensus and control.
Kubernetes operator
CRDs manage clusters, topics, snapshots, and UI access with clean drift control.
Quickstart in minutes
1. Install operator
helm upgrade --install kafscale deploy/helm/kafscale \
--namespace kafscale --create-namespace \
--set operator.etcdEndpoints={} \
--set operator.image.tag=latest \
--set console.image.tag=latest
2. Create your first topic
kubectl apply -n kafscale -f - <<'EOF'
apiVersion: kafscale.novatechflow.io/v1alpha1
kind: KafscaleTopic
metadata:
name: orders
spec:
clusterRef: demo
partitions: 3
EOF
3. Produce and consume
kafka-console-producer --bootstrap-server 127.0.0.1:9092 --topic orders
kafka-console-consumer --bootstrap-server 127.0.0.1:9092 --topic orders --from-beginning
Operations you can trust
Prometheus metrics
Track S3 health state, broker throughput, and operator snapshots.
Scale instantly
Stateless brokers pair with HPA and avoid disk rebalancing delays.
Clear failure modes
Startup gating, S3 health states, and etcd snapshot checks keep you safe.
Deep technical reference
Protocol coverage
Support for Produce, Fetch, Metadata, consumer groups, and admin APIs.
View API docsStorage format
Segment and index file layout plus S3 key structure for lifecycle design.
Explore storage formatSecurity posture
Current TLS and auth status, plus the roadmap for SASL and ACLs.
Read security overview