Show HN: Kuro-Nuri – Browser-based image redaction and compression using WASM

Hi HN,

I'm a beginner developer from Japan.

I built this tool because I was tired of opening Photoshop just to redact a name or a face from a screenshot. I didn't want to use existing "free online tools" because uploading sensitive images to a random server felt unsafe.

So I built Kuro-Nuri ("Blacked Out" in Japanese). It runs entirely in the browser using WebAssembly and TensorFlow.js (for auto-detecting faces). No data leaves your device.

Features: - Drag & drop to auto-redact faces. - Client-side compression. - Removes Exif metadata automatically.

The code is still a bit messy as I'm learning, but I'd love to hear your feedback on the performance and usability.

Thanks!