Tech Simulators
Interactive playground for system design understanding. Build intuition through visual simulations of real-world distributed systems patterns.
System Design Playground
Why API gateway, why load balancer, why circuit breaker — watch the naive approach break, then fix it
Kafka Simulators
Consumer lag, partition rebalancing, and consumer group scaling
Rate Limiters
Token bucket, sliding window, and fixed window rate limiting
Caching Simulator
5 cache strategies + 4 eviction policies with request-flow visualization
Consistent Hashing
Hash ring, virtual nodes, key distribution, and topology change visualization
Uptime Simulators
SLA calculator, 9 nines of availability, downtime breakdowns
Latency Simulators
p99, p95, p50 latency analyzer, percentile distributions, tail latency visualization