WebAssembly Is Making No-Login Browser Tools Better — Here's How

Here's something that didn't happen with an announcement: the floor for what a browser can compute, without sending your data anywhere, has risen considerably in the past two years. Not because browsers got flashy new APIs, but because specific WebAssembly capabilities — SIMD instructions, the GC proposal, threading — matured enough that tool developers could actually rely on them. The tools that benefited are exactly the ones that don't require a login. That's not a coincidence. When computatio