# AI Image Upscaler – 2x and 4x with Detail Rebuild

> Enlarge photos and improve image detail.

Canonical URL: https://allimageai.com/ai-tools/image-upscaler/

Website: All Image AI

Language: English

Upscalers split into two families. Pure interpolation never changes content but never adds detail. Reconstruction adds texture — and pushed too far it turns a face into a different person and text into gibberish. Content Type sets a safe range for you.

## Default pipeline

1. Upload an image
2. Choose a scale factor
3. Set repaint strength by content type
4. Rebuild detail
5. Export

## How to use

1. Upload the image.
2. Pick the content type — this matters most when faces or text are present.
3. Choose 2x or 4x.
4. Export.

## Supported models

- [Clarity Upscaler](https://allimageai.com/models/index.md): Philz1337x; Active.
- [CodeFormer](https://allimageai.com/models/index.md): S-Lab, NTU; Active.

## Output

- Format: PNG
- Up to 4x

## Frequently asked questions

### The face changed after upscaling.

Set Content Type to Portrait, which clamps repaint strength to a safe range.

### What is the input size limit?

4096 × 4096 per image.

## Image handling

Uploaded images are sent to the configured inference service for processing. You can delete a generation from your history.

## Related tools

- [Old Photo Restoration](https://allimageai.com/ai-tools/old-photo-restoration.md)
- [Face Enhancer](https://allimageai.com/ai-tools/face-enhancer.md)
- [AI Image Generator](https://allimageai.com/ai-tools/ai-image-generator.md)