TriFrost

TriFrost is a blazing-fast, runtime-agnostic server framework built for the modern JavaScript ecosystem — from low-latency edge environments to traditional backend infrastructure.

Whether you're deploying to Node.js, Bun, or Cloudflare Workers, TriFrost provides a unified API and internal architecture that adapts to the runtime — without compromising on performance, developer experience, or clarity.

✨ Why TriFrost?

TriFrost is the result of deep experience across frameworks, runtimes, and production systems. It combines:

• 🧩 Koa-like composability – build with middleware that’s small, explicit, and powerful
• ⚡ High performance – with zero-cost abstractions and extremely efficient internals (see benchmark)
• 🌐 Edge-native – designed from the ground up to support Workers, Bun, and other emerging runtimes
• 📊 Observability-first – tracing and structured logging are core to the architecture

Unlike many frameworks, TriFrost doesn't bind itself to Node-specific APIs or assume a single deployment model. It’s truly runtime-flexible, write once, run anywhere.

For a deeper read:

• What is TriFrost
• Why TriFrost?

🚀 1.0.0 — Stable and Ready

TriFrost v1.0.0 marks the first stable release, with a production-ready core and a fully typed public API surface.

• ✅ Finalized runtime contract (Node, Bun, Workerd, Cloudflare)
• ✅ Stable context, routing, and middleware layers
• ✅ Full test coverage and CI/CD hardening
• ✅ Built-in logger with structured telemetry + OpenTelemetry support
• ✅ Clean internal design with runtime adaptation and zero runtime bloat
• ✅ JSX-native request handlers (opt-in, fully typed)

If you've been waiting to try TriFrost in production — this is the version to start with.

If you want to play games 🎮 check out Atomic Arcade, a mini arcade powered by TriFrost Atomic

📦 Quickstart

TriFrost has a starter CLI available via npm create / bun create:

# npm
npm create trifrost@latest

# bun
bun create trifrost@latest

It’ll scaffold a project in under 60 seconds with routing, logging, and runtime setup built-in.

View the doc page for more info.

📦 From Scratch

You can also start from first principles. See the Hello World example to build step-by-step with only the core package.

🧠 Core Principles

TriFrost is built on these foundations:

• 🧠 No magic: You should be able to trace exactly how requests are routed and handled
• 🧱 Lean by default: No unnecessary dependencies, no bloat
• 🧾 Typed end-to-end: Full TypeScript support with strong generics and inference
• 🧬 Runtime-adaptable: Internals are modular, composable, and runtime-aware

For a full view read Core Principles.

🛠️ API Docs

Full documentation for core modules, types, and runtime behavior is available on trifrost.dev/docs

🔗 Resources

• 🧑‍💻 GitHub: trifrost-js/core
• 📦 npm: @trifrost/core
• 🌐 Website: trifrost.dev
• 🤖 CLI: Creation CLI
• 💬 Discord: Join the community

🤝 Contributing

TriFrost is open to contributions and collaboration.

• 🛠️ See open issues
• 💬 Join discussions
• 🧪 Run tests with npm run test or check coverage via npm run test:coverage

All code is modern TypeScript. Performance and type safety are first-class concerns, and PRs are reviewed fast.

👤 Authors

Created and maintained by:

• Peter Vermeulen

With love from the Atomic systems team.