One OS process. Many isolated apps. Sub-millisecond cold starts with V8 isolates and sliver snapshots. WinterTC compatible.
Production-ready edge runtime with comprehensive API support
~267µs cold starts with sliver snapshots. 187x faster than fresh V8 isolates.
One OS process hosts many isolated apps in separate V8 isolates with strong per-app boundaries.
Full fetch(), Request, Response, Headers, URL, TextEncoder, TextDecoder support per WinterTC spec.
Configurable per-request CPU limits with timer-based termination. Prevents infinite loops and resource exhaustion.
Per-isolate memory limits with LRU eviction and soft termination. 4-tier pressure monitoring prevents OOM conditions.
Automatic metrics collection per hostname. Prometheus exposition format at /_admin/metrics endpoint.
V8 built-in WASM engine for executing binary modules. Source hash caching for integrity verification.
Full crypto.subtle implementation: AES-GCM, HMAC, SHA-256/384/512, PBKDF2. JWK key import/export.
Portable isolate snapshots with VFS state. Deploy once, run anywhere. Tar-based format with integrity validation.
WebSocketPair API compatible with Cloudflare Workers. Per-connection V8 isolate with CPU/memory enforcement per frame.
Learn more →Follow the quick start guide to build and run your first NANO application.
View Quick Start Guide