Source: https://restorebunny.com/tools/normal-map-generator/

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# Normal Map Generator

Turn a grayscale height interpretation into an RGB normal map. Adjust strength and flip the green channel for your rendering workflow.

Free · No signupFiles stay on your device

**Choose an image**Up to 4 MP / 20 MB per image

Height strength3Flip green channel

**Give an old photo a fresh start**

Repair fading and scan damage with RestoreBunny’s AI photo restoration.

[Restore a photo](<https://restorebunny.com/signup/?from=seo-content&source=%2Ftools%2Fnormal-map-generator%2F>)

## How to use normal map generator

1. Choose your local image and the task-specific settings below.
2. Create the result and inspect its details.
3. Download your file without creating an account.

## A practical example

A completely flat height image produces approximately RGB 128, 128, 255. Brighter and darker neighboring heights tilt the encoded normal.

## Frequently asked questions

Are my files uploaded?

No. This utility runs in your browser. Your photos and settings are not sent for processing.

What should I check before using the output?

This infers surface slope from brightness, not measured geometry. Lighting baked into a photograph can create misleading bumps.

## Keep working on your photo

- [All free image tools](<https://restorebunny.com/tools/>)
- [Prepare image dimensions](<https://restorebunny.com/tools/image-resize/>)

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By RestoreBunny · Reviewed 2026-10-25. Utilities use local calculations or [browser image processing](<https://developer.mozilla.org/en-US/docs/Web/API/Canvas_API/Tutorial/Pixel_manipulation_with_canvas>). The download button identifies the output format. Animated images export one decoded frame. Keep your original files.