eszip

July 30, 2026 ยท View on GitHub

The eszip format lets you losslessly serialize an ECMAScript module graph into a single compact file.

The eszip file format is designed to be compact and streaming capable. This allows for efficient loading of large ECMAScript module graphs.

Note: The Rust eszip crate source code has been moved to the denoland/deno repository. This repository contains the JavaScript/WebAssembly bindings that wrap the eszip crate.

Development

Build the Wasm module:

deno task build

Run tests:

deno task test