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StackMachine vs AWS Lambda
Deploy your apps as-is. No handlers, no adapters, no cold start anxiety.
Why teams choose StackMachine
Built on WebAssembly from the ground up — not bolted on as an afterthought.
Way Faster Cold Starts
- StackMachine cold starts in < 5 ms via Instaboot snapshots
- Even large apps (WordPress, LangFlow, Django) start instantly
- AWS Lambda: cold starts in seconds for Python, worse with large dependency bundles
Full Native Language Support
- Run Python, PHP, JS and more — natively on WASIX, no adapters needed
- Full frameworks: FastAPI, Django, Flask, Starlette, WordPress
- Native WebSocket support built in
- Full multithreading support for concurrent servers
- Lambda: no WebSockets, one request per instance, no concurrency on warm instances
Full WebAssembly Sandboxing
- Lightweight Wasm isolation per app — no container or VM overhead
- Compiled code pages shared read-only across tenants for higher density
- All host access (network, FS, I/O) explicitly mediated by runtime
- Lambda: heavy container/VM isolation with much higher memory overhead per instance
No Code Adaptation Required
- Deploy existing apps as-is — no Lambda handlers or proprietary API
- No adapters or wrappers (awsgi, mangum) needed
- Lambda adapters are often unmaintained and complex to set up
Side-by-side comparison
See how StackMachine stacks up against AWS Lambda across key dimensions.
| Feature | StackMachine | AWS Lambda |
|---|---|---|
| Cold start | < 5 ms | Seconds (Python) |
| Code changes | None — deploy as-is | Must adapt to Lambda handler |
| Multithreading | ||
| WebSockets | ||
| Binary tools (ffmpeg, pypandoc…) | ||
| Billing | Active CPU usage only | Wall-clock time (idle I/O still costs) |
| Sandboxing | Wasm isolation (lightweight) | Container/VM isolation (heavy) |
| Scale to zero |
Ready to switch?
Deploy your first app in minutes. No handlers, no adapters, no vendor lock-in.