Developer tools
Live calculators below. Roadmap entries are not linked until they ship.
Kafka Message Size Calculator
Calculate Kafka message size, storage, bandwidth and optimal configuration. Compression, batching and replication.
Kafka Consumer Lag Predictor
Predict when your consumer group will overflow. Size consumers and simulate failures before production incidents.
API Rate Limit Calculator
Optimal rate limits from traffic and consumers. Nginx, Kong, AWS snippets and IETF headers.
API Versioning Decision Helper
Interactive SemVer: decide major, minor, or patch bumps with clear rationale for API changes.
System Latency Budget Calculator
Build your architecture from reference hop latencies and see instantly if you fit your SLA — interactive latency numbers for engineers.
ReDoS Vulnerability Tester
Analyze JavaScript-style regex for catastrophic backtracking: scores from redos-detector, static heuristics, evil inputs, and bounded timing.
API Breaking Change Checker
Paste two JSON Schemas and instantly see which changes are breaking, which are safe, and why. No signup, no CLI.
PostgreSQL Connection Pool Sizer
Calculate the optimal max_connections, work_mem, and PgBouncer pool size for your PostgreSQL server. Get a ready-to-paste postgresql.conf snippet.
DORA Metrics Calculator
Calculate DORA tiers (Elite/High/Medium/Low) from 30/90-day numbers. Find your bottleneck and get a recommendation — no GitHub integration.