How to use the image upscaler
- 1 Drop your images on the box, or click browse to choose them. You can add many at once.
- 2 Choose how much to enlarge, from 1.5x to 4x, and set the sharpening strength.
- 3 Press Upscale. One image downloads directly; several come in a ZIP file.
- 4 Check the new size and file size shown under each image.
Upscaling with realistic expectations
Enlarging works best on clean graphics and photos that are already fairly sharp. For logos and icons, a vector from PNG to SVG stays perfectly sharp at any size. To set an exact pixel size after upscaling, use Resize Image in Pixels.
- Two times usually gives the most natural result.
- Use less sharpening on faces.
- Compress the enlarged file before uploading.
Features
1.5x to 4x
Choose a gentle or a large enlargement.
Step-by-step enlarging
Smooth multi-step scaling avoids jagged edges.
Adjustable sharpening
Bring back crisp edges without harsh halos.
When to use it
Small logos
Enlarge a small logo for a slide or document. For perfectly sharp results at any size, trace it with PNG to SVG.
Old photos
Make old, low resolution photos large enough to view comfortably on modern screens.
Website images
Enlarge a thumbnail when the original is lost, so it fills a bigger space without obvious blocks. To change dimensions down instead, use Resize Image.
Printing
Increase pixel size to meet the minimum a print service asks for, keeping expectations realistic.
Related Image tasks
Frequently asked questions
Does upscaling add real detail?
No tool can recover detail that was never captured. This upscaler uses careful resampling and sharpening, which looks cleaner than stretching. AI upscalers guess new detail, which can look impressive but may also invent things that were not there.
Which scale should I choose?
Two times gives the most natural result. Three or four times is useful for small graphics and icons, but photos will look softer the more you enlarge them.
How much sharpening should I use?
Medium suits most photos. Use Strong for logos and text, and Light or None for faces and skin, where strong sharpening can look harsh.
Is there a size limit?
The enlarged image can be up to about forty megapixels, which keeps your browser responsive. That is large enough for most prints and screens.
Will the file size get bigger?
Yes. More pixels mean a bigger file. Compress the result afterwards with Compress JPG or Compress PNG if needed.
Should I upscale before or after editing?
Edit colours and brightness first, then upscale as the last step, so the sharpening works on the final look.
Can I upscale several images at once?
Yes. Add them all and they are enlarged with the same settings, then downloaded together in a ZIP file.
Are my images uploaded for upscaling?
No. The enlarging and sharpening run in your browser on your own device, so your images stay private.
How this tool works. These image tools run entirely in your browser using the Canvas API built into every modern browser, the open-source libheif decoder for iPhone HEIC photos and Tesseract, a widely used open-source OCR engine, for reading text. Each tool is tested with real phone photos, screenshots and scans before it goes live, and nothing you open is sent to a server.
Built and reviewed by Hamza Farooq, founder and lead developer
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