How is this different from a normal resize?

A normal (bicubic) enlargement only stretches existing pixels, so the photo gets bigger but stays just as blurry. The AI has learned what edges, textures and details look like and rebuilds them, removing blur, noise and JPG blocks.

Which photos work best?

Small or compressed photos: images downloaded from social networks or messaging apps, screenshots, old low-resolution scans, logos and product photos. With tiny faces or text the AI may invent detail, so always check the comparison slider.

Why is my image reduced first sometimes?

Upscaling ×4 multiplies the number of pixels by 16. To avoid running out of memory, the input is limited to about 2 megapixels with WebGPU and 0.6 megapixels on the CPU. You are told when this happens.

How long does it take?

The 5 MB model is downloaded once from our own domain. With WebGPU (recent Chrome, Edge or Safari) a photo takes seconds; on the CPU it can take a minute or two. A progress bar shows the status.

Are my files uploaded to a server?

No. Everything is processed inside your browser and your files never leave your device. There is no upload, no queue and no temporary storage, so the tool keeps working even if you go offline after the page has loaded.

Yes. There is no sign-up, no watermark and no daily limit. The site is funded by a few unobtrusive ads around the tools, never inside your files.

Upscale image (AI)

Upload a small, blurry or pixelated photo and press “Enhance with AI”: Real-ESRGAN enlarges it ×2 or ×4, rebuilding detail and removing noise and compression blocks. Everything happens in your browser.

Free, no sign-up and no uploads: processing happens in your browser · Updated September 18, 2026

Upscale

The AI rebuilds detail and removes blur, noise and JPG compression blocks.

Rescue photos you thought were lost

That photo you only have at chat size, the logo you need to print or the pixelated product shot: the AI restores sharpness and resolution so you can use them at a larger size.

Related tools

After enhancing, remove the background, erase unwanted objects or compress it for the web.

Related tools

Remove background (AI)

Remove the background from any photo with AI.

Remove objects from photo (AI)

Erase people, objects or text from a photo by painting over them.

Resize image

Change image dimensions by pixels or percentage.

Compress image

Reduce image file size without visible quality loss.

Frequently asked questions

How is this different from a normal resize?: A normal (bicubic) enlargement only stretches existing pixels, so the photo gets bigger but stays just as blurry. The AI has learned what edges, textures and details look like and rebuilds them, removing blur, noise and JPG blocks.
Which photos work best?: Small or compressed photos: images downloaded from social networks or messaging apps, screenshots, old low-resolution scans, logos and product photos. With tiny faces or text the AI may invent detail, so always check the comparison slider.
Why is my image reduced first sometimes?: Upscaling ×4 multiplies the number of pixels by 16. To avoid running out of memory, the input is limited to about 2 megapixels with WebGPU and 0.6 megapixels on the CPU. You are told when this happens.
How long does it take?: The 5 MB model is downloaded once from our own domain. With WebGPU (recent Chrome, Edge or Safari) a photo takes seconds; on the CPU it can take a minute or two. A progress bar shows the status.
Are my files uploaded to a server?: No. Everything is processed inside your browser and your files never leave your device. There is no upload, no queue and no temporary storage, so the tool keeps working even if you go offline after the page has loaded.
Is it really free?: Yes. There is no sign-up, no watermark and no daily limit. The site is funded by a few unobtrusive ads around the tools, never inside your files.