Libraries we maintain.
We open-source the tools we build for ourselves. Everything here is MIT-licensed, used in production by us, and battle-tested across 247 shipped products. Contributions welcome.
Libraries we're proud of.
ic-checksum
Fast content-addressed checksums for S3-style storage. Used in 3 of our enterprise platforms. Rust core, Node bindings.
View on GitHub → ★ 2.8kic-rate-limit
Token bucket + leaky bucket rate limiting for Node.js and Deno. Sub-millisecond checks. Redis-backed for distributed use.
View on GitHub → ★ 1.9kic-webhook
Type-safe webhook dispatch with retries, signature verification, and a beautiful testing UI. TypeScript + React.
View on GitHub → ★ 1.4kic-audit-log
Append-only audit logging with cryptographic chaining. PostgreSQL-native. Used in HIPAA and SOC 2 engagements.
View on GitHub → ★ 980ic-deploy
Opinionated deploy CLI for Next.js + Vercel + Cloudflare. Zero-config canary deploys with instant rollback.
View on GitHub → ★ 720ic-perf
Real-user monitoring (RUM) library — 2KB gzipped, Core Web Vitals + custom traces, ships to Datadog or self-hosted.
View on GitHub →Open source impact.
How to contribute.
Reporting issues
Found a bug or have a feature request? Open an issue on the relevant GitHub repo. Please include:
- Minimum reproducible example
- Library version & runtime
- Expected vs actual behavior
- Logs (with sensitive info redacted)
Submitting PRs
We welcome pull requests! A few guidelines:
- Open an issue first to discuss significant changes
- Include tests for new functionality
- Keep PRs focused — one feature per PR
- All code is reviewed within 5 business days