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| Metric | Wasmer | Cloudflare Workers | gVisor |
|---|---|---|---|
| Score | A-83 | B+75 | B72 |
| Type | WebAssembly | Edge | MicroVM |
| Execution | hybrid | jit | hybrid |
| Interface | cli | platform | cli |
| Cold Start | 2ms | <1ms | 50ms |
| Memory | 8MB | 128MB | 20MB |
| Startup | 1ms | <1ms | 30ms |
| Isolation | process | process | microvm |
| Maturity | stable | production | stable |
| Languages | Rust, C, C++, Go, Python, Ruby, PHP | JavaScript, TypeScript, Rust, C, C++ | Any |
| License | MIT | Proprietary | Apache-2.0 |
| Links |