Show HN: Jax-JS, array library in JavaScript targeting WebGPU • Hacker News Board

Re: Show HN: Jax-JS, array library in JavaScript targeting WebGPU

#21

Post by forgotpwd16 » Wed, Jan 07, 2026, 7:18 AM UTC

ekzhang wrote: post #12

maelito wrote: post #11

Could not run the demos on Firefox. On Chromium, the Great Expectations loads but then nothing happens.

Firefox doesn’t support WebGPU yet, you can run programs in the REPL through other backends like Wasm/WebGL: https://jax-js.com/repl See: https://caniuse.com/webgpu

According to page WebGPU supported (`dom.webgpu.enabled` flag) but is only enabled by default on Windows & macOS (i.e. not Linux).

Re: Show HN: Jax-JS, array library in JavaScript targeting WebGPU

#22

Post by forgotpwd16 » Wed, Jan 07, 2026, 7:25 AM UTC

Very nice work. Like how it supports webgpu but also cpu/wasm/webgl. Would love to read more on the internals & design choices made like e.g. ref counting in README.

P.S. And thanks for taking your time working on this and releasing something polished rather a Claude slop made within few days as seems to be the norm now.

Re: Show HN: Jax-JS, array library in JavaScript targeting WebGPU

#23

Post by sbondaryev » Thu, Jan 08, 2026, 12:41 AM UTC

The examples are great. It would be really nice to have a sandbox with the full training code (e.g. MNIST) to play with.