zxing-wasm

It’s zxing-cpp, but compiled to Web Assembly.

Status

Mostly a research project, although it works (Demo).

Performance

I haven't run extensive measurements yet, but it seems to be linearly proportional to the amount of pixels in the input picture.

Numbers that I saw (Firefox 59, on Github pages):

• 1.3 Megapixel, 17 ms
• 12 MP, 125 ms
• 190K pixel, 2 ms

Unless I remove it accidentally, you can see the timing and image dimensions in your browser's console.

TODO

Iff I have both time and interest:

• Get better perf numbers
• Distribute on npm
• Benchmark against asm.js version of zxing used in instascan

License

MIT