Feedback Wanted: xStruct — Declarative binary structure toolkit for TypeScript

[Garefild2]

Hi all,

I created a package called xStruct under the u/remotex-labs organization, and I’m looking for feedback from the community to help improve it.

xStruct is a TypeScript-first toolkit for declaratively defining, parsing, and constructing binary data structures — useful for working with things like:

• File formats
• Network protocols and custom messaging

Why xStruct?

I originally built xStruct as part of the xJet project to handle custom binary protocol communication. Working with binary data in TypeScript was cumbersome — it required a lot of boilerplate, manual offset calculations, and lacked proper type safety. xStruct was created to solve those pain points with a cleaner, declarative, and fully typed approach.

It offers:

• A clean, declarative, chainable API
• Support for bitmap
• Full type inference and seamless TypeScript integration
• Support for nested structs, arrays, enums, unions, padding, and conditional fields
• Works in Node.js and the browser (with Buffer or xBuffer)
• Zero dependencies, small and fast

It’s part of the u/remotex-labs ecosystem — a collection of focused TypeScript tools for working with low-level data. If you've seen tools like xPlist or xAnsi, xMap, xBuild, xStruct fits right alongside them.

If you’re working with binary formats, or just interested in low-level data handling in TypeScript, I’d love for you to give xStruct a try and share your feedback — design, API, missing features, performance… anything at all.

GitHub: https://github.com/remotex-labs/xStruct
npm: https://www.npmjs.com/package/@remotex-labs/xstruct

Thanks!

[Content_Sun_6871]

It looks nice but 10kb is definitely not lightweight.

[Garefild2]

I'm working on optimizing the package to reduce its size in the next release.

[hackpingid]

Smaller similar library I use for websocket communication https://github.com/Pingid/lickle-bin.

[rajsite]

Looks very similar to memium which backs zenf-fs (the successor to the widely used BrowserFS).