Inkvec

Exact vectors from logos, icons and flat artwork, entirely in the browser. Inkvec is LogoLabs' tracer compiled to WebAssembly and served as a static page: drop an image, get an SVG, nothing leaves your machine.

Boundaries land where the anti-aliasing says they are, circles come back as circles, the pieces of one colour are one path, and the number of coordinates is chosen by minimum description length rather than a tolerance slider. Across 21 cases — 14 hash-selected real icons across seven families, 4 hand-picked synthetic probes, and 3 real brand logos from an external dataset (selection fixed from the seed crosscompare-2026-09-15-v1) — scored against the source render, Inkvec's median colour error (dE00) is 11x lower than VTracer's default output at roughly a quarter of the coordinates; the 3 brand logos are not part of the repo, so a clean clone reproduces the other 18. Full numbers, sourced, are in the project README.

Build

rustup target add wasm32-unknown-unknown
rustup toolchain install nightly --component rust-src
tools/build_wasm.sh

That writes two packages, and web/worker.js picks between them at load:

The tracer, its arithmetic and its output are the same in both — measured, by hashing the SVGs from each: on a sixteen-core machine the threaded build is 3.7x to 4.3x faster on real logos and returns the identical bytes.

Isolation is what the custom_headers block in this README asks the Space for. Where it is not granted the page loads the single-threaded package instead and everything still works.

The page is web/index.html; serve it over HTTP (ES modules do not load from file://).

Deploy

This folder is the Space. Create a Space under the LogoLabs org with the static SDK and push these files (README, index.html, worker.js, samples/, the built pkg/). Build the package with tools/build_wasm.sh, then upload this folder to the Space with huggingface-cli once you are logged in.

Notes

• Single-threaded in the browser (rayon runs its work on the calling thread when it cannot spawn). A 768-px logo takes about eight seconds; the native binary uses every core and is several times faster. Browser threads need cross-origin isolation headers the static SDK cannot set; a coi-serviceworker shim is the usual workaround if that ever matters.
• Inputs above the "max dimension" setting are traced at that size and written at the original size, so a 4000-px screenshot still finishes.