Rust WASM vs TypeScript Performance: Why the 'Faster' Language Lost by 25% [2026]
A developer rewrote a Rust WASM JSON parser in TypeScript and it ran 25% faster. Here's why the JS/WASM bridge kills performance for the wrong workloads.
![Rust WASM vs TypeScript Performance: Why the 'Faster' Language Lost by 25% [2026]](https://media2.dev.to/dynamic/image/width=1200,height=627,fit=cover,gravity=auto,format=auto/https%3A%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Farticles%2Fumdpbkj4vn88g7zd603u.png)
Source: DEV Community
A developer rewrote a Rust WASM JSON parser in TypeScript and it ran 25% faster. Here's why the JS/WASM bridge kills performance for the wrong workloads.