I built Normal Map Generator Online (free) for indie game devs: 157 users so far

Hey Indie Hackers,

I’m building Normal Map Generator Online, a simple web tool to turn any image/texture into a normal map without installing anything.

Why it exists
When I’m prototyping materials, I don’t want to open a heavy app or fight a complex workflow. I wanted something fast: open a tab, drop an image, tweak, export.

What it does (today)

• Generate a normal map from an image in the browser

• Quick controls + preview

• Export the result (PNG)

It’s free, and it already has 157 users.

Link: https://normalmap-generator.online

I’d love your feedback

• What “must-have” feature should I build next? (tiling/seamless, presets for Unity/Unreal/Godot, batch export, better controls, other map types like height/roughness, etc.)

• What makes you trust a normal map tool’s output quality?

• Any workflow pain points you’d want a browser tool to solve?

If you try it and something looks off, tell me what input image you used and what you expected to see.