Image Upscaler
Enlarge images 2–4× with canvas resampling — not neural super-resolution.
Best for general upscaling. Example: enlarge a small image for printing.
Before you use: upscaling can't invent detail that isn't in the original.Best for: enlarging while keeping edges clean. Not ideal for: shrinking images.
- Upload a small image.
- Upscale it to larger dimensions.
- Download the enlarged image.
Image Upscaler is a browser-based image tool on ImgToolsBase. Enlarge images 2–4× with canvas resampling — not neural super-resolution. To use it, upload or drop your image and view the result directly in your browser — no signup and nothing to install.
How this tool works
What it does
Image Upscaler increases pixel dimensions via canvas resampling.
Scale
Up to 4×, pixel-budget guarded.
Output
PNG/JPG/WebP with quality.
Honesty
Not neural super-resolution. Browser canvas export strips EXIF, GPS, and most other source metadata.
Image Upscaler in your browser
Image Upscaler increases an image’s pixel dimensions with browser canvas resampling. It is not neural super-resolution — it enlarges the pixels you already have, so it will not create detail that is missing from the source.
Pick a scale up to 4×, optionally sharpen, and choose the output format. PNG and WebP can preserve transparency when the source has an alpha channel and Background is set to Transparent; JPG output is flattened onto your chosen fill colour, with a quality control for JPG/WebP.
Image Upscaler shows the original and upscaled dimensions, the scale factor, the output format, and the file size. Browser canvas export strips EXIF, GPS, and most other source metadata. Animated GIFs are processed as a single still frame; animation is not preserved.
How to use Image Upscaler
- Upload your image into Image Upscaler — click, press Enter, or drag it in.
- Choose a scale factor (up to 4×) to enlarge the image.
- Turn sharpening on or off, then choose PNG, JPG, or WebP output.
- Click Process, then download the upscaled image.
Why use Image Upscaler
Enlarge by a chosen factor.
Emphasise edges after scaling.
Resampling, not new detail.
PNG/WebP can preserve transparency only when source alpha exists and Transparent background is selected; JPG flattens.
Common uses for Image Upscaler
Reach a target pixel size.
Scale up before composing a design.
Meet upload or template minimums.
Export larger as PNG, JPG, or WebP.
When to choose Image Upscaler
This tool is for enlarging an image to bigger pixel dimensions when you need it larger.
Worked example: A 400px graphic must fill a 1000px slot. Upscale it to the larger dimensions so it fits the space rather than appearing tiny.
Image Upscaler increases dimensions; the image resizer is the tool when you are setting an exact (often smaller) size instead.
- Enlarging cannot invent detail that was never captured, so start from the sharpest source you have.
- Modest enlargements hold up better than extreme ones.
Can upscaling add detail that isn't there?
Enlarging works from the existing pixels and cannot recover detail the original never had, so expect some softening at large factors.
What's the best source for upscaling?
The sharpest, highest-quality original available — clean input enlarges far better than a small or blurry starting image.
Frequently asked questions
Can Image Upscaler add detail that is not there?
No. Image Upscaler resamples existing pixels to a larger size; it is not neural super-resolution and cannot invent missing detail.
How far can Image Upscaler upscale?
Up to 4×, within a browser pixel budget. Results that would be too large show a clear error.
Does sharpening in Image Upscaler recover detail?
No. Sharpening only emphasises existing edges; it does not reconstruct lost detail.
Can I export Image Upscaler as PNG, JPG, or WebP?
Yes. Choose any of those or same-as-input, with a quality control for JPG/WebP.
Related editing tools
Tools that pair well with Image Upscaler.