Show HN: NanaVis – Upload one image, describe the change

I often need a tiny edit to a single image and don’t want a full editor. So I built a tool that does exactly one thing: upload one image → type one instruction → get the edited image. No projects, no layers, no batch.

Typical uses:

“Change the jacket to dark blue”

“Remove the coffee mug on the desk”

“Replace background with plain white”

“Soften the lighting a bit”

Known limits: hair/glass/busy textures and very small sources can fail; one image at a time; same prompt may vary slightly.

I’d love blunt feedback: your real prompts, common cases I missed, and where the flow gets in the way (upload/preview/download). Fail cases welcome.