Free AI image upscaler
Upscale images online for free
Make small photos 2× or 4× bigger and keep them sharp. Up to 4096 px, no watermark, no sign-up.
or drop them here · paste with Ctrl+V
JPGPNGWebPAVIFUp to 10 images · up to 1920 × 1080 each
Drop images to upscale them
No image? Try one of these:
Scale
Format
Processed in memory, then deleted.
Four times bigger, still sharp
An open-source AI model (Real-ESRGAN) enlarges the photo on our server and redraws the edges and texture that ordinary enlarging blurs. Drag to compare it with a plain 4× enlargement of the same small photo.
- Photo
- JPG · 320 × 240
- Result
- 4× · 1280 × 960
- Time
- Under a second on our server
How to upscale an image
Add your images
Choose up to 10 JPG, PNG, WebP or AVIF files, drop them on the page or paste one.
Pick 2× or 4×
The AI model enlarges each image and sharpens its edges and texture, up to 4096 px.
Save the result
Keep the original format or pick WebP, JPG or PNG, then save one by one or as a ZIP.
More about upscaling images
How big the result will be
| Your image | 2× | 4× |
|---|---|---|
| 640 × 480 | 1280 × 960 | 2560 × 1920 |
| 1024 × 768 | 2048 × 1536 | 4096 × 3072 |
| 1280 × 720 | 2560 × 1440 | 4096 × 2304 |
| 1920 × 1080 | 3840 × 2160 (4K) | 4096 × 2304 |
The result is at most 4096 px on its longest side, so 4× of a bigger image stops at 4096 px. Images up to 2048 px a side and about 2.4 megapixels can be upscaled.
Getting the best result
- Start from the best copy you have. The original file beats a screenshot or a copy saved from a chat app.
- Upscale once. Running a result through again makes it look painted, not sharper.
- Expect soft fine text. Small text, logos and tiny faces can come out smooth or slightly changed; use the vector original where you can.
- Make it light before it goes online. An upscaled photo is several times heavier; WebP or compression keeps the page fast.
Your images are never stored
To upscale an image, it is sent to our server over an encrypted connection, enlarged in memory and deleted as soon as the result is sent back. It is never stored, logged or seen by anyone.
Questions about upscaling images
Is it free? Are there limits?
It is free, with no sign-up and no watermark. You can upscale up to 10 images at a time and 50 an hour.
How big can the result be?
Up to 4096 px on the longest side. 4× works in full for images up to 1024 px; a bigger image is enlarged as far as 4096 px. 2× of a 1920 × 1080 photo gives 3840 × 2160 (4K).
Which images can I upscale?
JPG, PNG, WebP and AVIF, up to 2048 px a side and about 2.4 megapixels (1920 × 1080 fits).
Does the AI add real detail?
It uses Real-ESRGAN, an open-source model trained to sharpen edges and rebuild texture that ordinary enlarging blurs. It can't recover what was never in the photo: tiny faces or text may come out smooth or slightly changed.
Is transparency kept?
Yes. A PNG, WebP or AVIF with a transparent background stays transparent; JPG has no transparency, so the background becomes white.
Are my photos uploaded?
Yes, each image is sent to our server to be upscaled, processed in memory and deleted at once. Nothing is stored and no one sees it.
How long does it take?
A few seconds for a small photo and about 20 seconds for a 1920 × 1080 image. Images are done one after another.
Is 4096 px enough to print?
At 300 dpi, 4096 px is about 35 cm (13.7 in) on the long side, enough for an A4 print. At 150 dpi, for a poster seen from further away, it is about 69 cm.
More free tools
Speed test
Any page, phone and desktop
Compress
Smaller files, same look
Resize
Exact pixels or percent
Crop
Square, 16:9, circle and more
Remove BG
Transparent PNG in seconds
Denoise
Less grain, cleaner photos
HEIC to JPG
iPhone photos that open everywhere