Upscale an image
Make a small image larger with high-quality resampling and optional sharpening. It is ideal for logos, icons, screenshots and graphics that need to be printed or shown at a bigger size, and it runs entirely on your device.
Drop files here or click to browse
Results
How to upscale an image
- Drop the images you want to enlarge.
- Choose 2×, 3× or 4×, and whether to sharpen the result.
- Pick an output format. PNG keeps edges crisp; WebP or JPG for photos.
- Run and download the larger images.
What upscaling can and cannot do
Enlarging an image means creating pixels that were not in the original. There are two ways to do that. Resampling interpolates between the existing pixels using a mathematical filter and then optionally sharpens the result. It is fast, predictable, and excellent for images with clean edges: logos, icons, line art, text, diagrams and screenshots. AI upscaling uses a neural network trained on millions of photos to invent plausible detail. It can make a small photograph look genuinely sharper, but it also invents things that were never there, needs a large model download, and is slow.
This tool does resampling with a high-quality filter and a sharpening pass. It is the right tool for graphics, and an honest tool for photos: a photo comes out larger and smooth, not magically detailed.
When it works well
- A logo supplied at 300 pixels that needs to be 1,200 pixels for a website header or a print job.
- An app icon or favicon that needs a larger version for a store listing.
- A diagram or chart from a document that needs to go into a presentation at full screen.
- Pixel art or a screenshot for a blog post, where crisp edges matter.
- A small product image that needs to fill a fixed slot in a template.
Choosing the scale and sharpening
| Source | Scale | Sharpen | Format |
|---|---|---|---|
| Logo or icon with flat colours | 2× to 4× | On | PNG |
| Screenshot with text | 2× | On | PNG |
| Line art or diagram | 2× to 3× | On | PNG or WebP |
| Photograph | 2× | Off, or on lightly | JPG or WebP at high quality |
Sharpening restores the edge definition that interpolation softens. On graphics it is almost always an improvement. On photographs it can exaggerate noise and JPG artefacts, so try it both ways.
Better options for logos
If the logo exists as a vector file (SVG, AI, EPS or PDF), use that instead of upscaling a raster copy: a vector can be exported at any size with perfect edges. Upscaling is for when the only copy you have is a small PNG or JPG.
Limits
Output is capped at around 40 megapixels, roughly 8,000 by 5,000 pixels, to keep the browser from running out of memory. A 4× enlargement of a 2,000 pixel wide image is already 8,000 pixels wide, so for large sources use 2×. Processing happens on your device and nothing is uploaded.
Frequently asked questions
Is this AI upscaling?
No. It uses high-quality resampling and sharpening, which runs instantly in your browser and works very well for logos, icons, line art and screenshots. AI upscalers invent new detail for photographs, at the cost of a large model download and much slower processing.
Will a tiny photo become sharp?
Upscaling cannot add detail that was never captured. A blurry 200 pixel photo enlarged 4× is a smoother, larger blurry photo. The tool shines on graphics with clean edges.
How big can the output be?
Up to roughly 40 megapixels, which is about 8,000 by 5,000 pixels. Beyond that a browser runs out of memory.
Are my images uploaded?
No. Enlarging happens in your browser and the files stay on your device.
Your files never leave your device
Every tool on Squishly Tools is 100% free and runs entirely inside your browser. Your images and documents are processed on your own computer and are never uploaded to a server. There are no accounts, no watermarks and no catch.