How is this different from resizing?

A resize works out each new pixel by blending the old ones around it, which makes an enlargement soft. This uses Real-ESRGAN, a neural network trained on pairs of small and large images, to draw the detail a larger version would have. Edges come out crisp and textures look like textures rather than blur.

How big can the image be?

Up to 2 megapixels for 2x, such as 1600 x 1200, and up to 1 megapixel for 4x, such as 1000 x 1000. That keeps the result at up to 8 or 16 megapixels. A larger image is refused with the size that would work. Upscaling is for making small images bigger; a photo that is already large rarely gains anything from it.

Can it fix a blurry photo?

Partly. It sharpens the softness of a small image and cleans up compression blocks, but it cannot recover detail that was never captured. A badly out-of-focus or motion-blurred photo will come back larger and somewhat cleaner, not in focus.

Is my image sent to an outside AI service?

No. The model runs on ConvertNicely's own servers, in the same place every other conversion runs. Nothing is sent to a third-party AI API, and the file is deleted automatically after processing.

Does it keep transparency?

Yes. A PNG or WebP with a transparent background comes back transparent, with the edges of the transparent area enlarged smoothly. The result is always in the format you uploaded.

Is this converter free?

Yes. Every conversion on ConvertNicely is free to use, with no account and no watermark on the result. Everyone can run 50 jobs and upload 2 GB a day, with or without an account.

What happens to my files?

Your uploaded file is deleted from our servers the moment the conversion finishes, whether it succeeded or failed. The converted result is deleted automatically one hour later, and you can delete it yourself at any time with the Delete button.

Is there a file size limit?

Files up to 20 MB are accepted for this conversion. Larger limits apply to paid plans in future, but the free limit is generous enough for the overwhelming majority of JPG conversions.

Do I need to install anything?

No. ConvertNicely runs entirely in your browser and on our servers, so there is nothing to download or install. It works the same on Windows, macOS, Linux, Android and iOS.

Does it work on a phone?

Yes. The whole site is built mobile-first, so you can upload from your camera roll or files app, convert, and download the result without leaving your browser.

Free

Upscale an Image

Stretching a small picture makes it soft and blocky, because a resize can only spread out the pixels that are already there. This runs Real-ESRGAN, an AI model trained to redraw edges and texture at a larger size, so the enlargement looks sharp. It runs on our own servers: the picture is not sent to an outside AI service, and your upload is deleted as soon as processing finishes.

Also known as: AI image upscaler · image enlarger · increase image resolution · photo upscaler

Files up to 20 MBTypically under a minute

Drop your file hereor choose a file from your deviceJPG, PNG or WebP · up to 20 MB

Encrypted upload · deleted right after conversion

Your files are deleted automatically

Uploads are removed as soon as processing finishes, and converted files are deleted after 1 hour. Read our privacy policy.

How to upscale an image

Step 1
1. Add your file
Drag your JPG, PNG or WebP file into the box, or choose it from your device. It can be up to 20 MB.
Step 2
2. Choose your settings
Adjust Enlarge by (2x) and Remove metadata (on), or keep the starting values in brackets, which suit most files. More are under Advanced options.
Step 3
3. Press Upscale image
The work happens on our servers, and you can follow its progress.
Step 4
4. Download the result
Each file comes back in the format it went in; several come together in a ZIP. Your upload is already deleted, and the result is deleted after one hour.

Worth knowing

The model redraws detail it has to guess at, so it cannot recover what was never in the picture: faces, small text and fine patterns can come out smoothed or changed. Check the result before you use it. It is for making small images bigger: images over 2 megapixels for 2x, or 1 megapixel for 4x, are refused.

Why upscale an image?

Rescuing a small or old photo for printing
Enlarging a product shot or a logo that only exists as a thumbnail
Getting an image up to the size a website or marketplace asks for
Sharpening a screenshot or a saved web image before reusing it

What changes

What upscale an image changes, and what it leaves alone
Property	Before	After
Size	Original	2x or 4x wider and taller
Edges	Soft when stretched	Redrawn sharp
Format	JPG, PNG or WebP	Unchanged
Transparency	Preserved	Preserved

Frequently asked questions

Page updated 21 October 2026

All Image converters

Upscale an Image

How to upscale an image

1. Add your file

2. Choose your settings

3. Press Upscale image

4. Download the result

Why upscale an image?

What changes

Frequently asked questions

Resize Image

Remove Background

Compress Image

Crop Image

Upscale an Image

How to upscale an image

1. Add your file

2. Choose your settings

3. Press Upscale image

4. Download the result

Why upscale an image?

What changes

Frequently asked questions

How is this different from resizing?

How big can the image be?

Can it fix a blurry photo?

Is my image sent to an outside AI service?

Does it keep transparency?

Is this converter free?

What happens to my files?

Is there a file size limit?

Do I need to install anything?

Does it work on a phone?

Related conversions

Resize Image

Remove Background

Compress Image

Crop Image