Tech Simulators

Kafka Message Flow

Visualize how producers, partitions, and consumers move messages through a Kafka topic

Kafka Consumer Lag

Simulate consumer lag growth and recovery as produce/consume rates diverge

Kafka Consumer Rebalance

Watch partition rebalancing across a consumer group as members join and leave

Rate Limiters

Compare token bucket, leaky bucket, fixed window, and sliding window rate limiting

Caching Simulator

Explore 5 cache strategies and 4 eviction policies with request-flow visualization

Consistent Hashing

Visualize a hash ring, virtual nodes, and key distribution under topology change

Uptime SLA

Calculate SLA targets, nines of availability, and allowed downtime per year

Latency Simulator

Analyze p50, p95, and p99 latency percentiles and tail-latency distributions

Consensus / Raft

Watch leader election, log replication, and quorum as nodes join, crash, and recover

Circuit Breaker

See closed, open, and half-open states trip and recover as failures cross a threshold

Load Balancer

Compare round-robin, least-connections, weighted, and random across backend nodes

Queue / Backpressure

Push producers against a bounded buffer and watch drop, block, or overwrite under overload

CAP Theorem

Visualize trade-offs between Consistency, Availability, and Partition Tolerance in distributed systems