Image resizer
Drop a photo, set the size, download the result. Your image is resized on your own device, it is never uploaded anywhere.
Guide
How to use it
- Drop an image onto the tool, or tap it to browse. JPG, PNG and WebP work.
- Type a new width or height in pixels, with the aspect ratio locked the other side follows. Or switch to Percent and drag the scale slider.
- Pick an output format. JPG for photos, PNG for graphics that need transparency, WebP for the smallest files.
- Tap Resize image, check the preview and download.
Examples
Sizes people actually need
Full-HD wallpaper or presentation background. Downscaling a 12-megapixel photo to this roughly quarters its file size before quality settings even apply.
The percent mode’s job: halving a batch of screenshots for documentation. Half the dimensions means about a quarter of the pixels and a similar cut in bytes.
A product photo for a listing. WebP at quality 85 typically lands 25 to 35% smaller than the equivalent JPG with no visible difference.
Method
How it works
The image is drawn onto an off-screen canvas at the new dimensions using the browser’s high-quality scaler, then re-encoded in your chosen format. Enlarging beyond the original size is possible but cannot invent detail, expect softness past about 130%.
Everything happens in page memory on your device. The file never travels, which also makes it fast: no upload wait, no queue.
FAQ
Frequently asked questions
Does resizing reduce quality?
Downscaling loses pixels by definition but looks clean because many pixels average into each. Visible quality loss usually comes from the compression setting, not the resize, keep quality at 85 or above if unsure.
Can I make an image bigger?
Up to double size here. The result is smooth rather than detailed, upscaling cannot recover what the camera never captured.
What is the difference between resizing and compressing?
Resizing changes the pixel dimensions, compressing keeps the dimensions and squeezes the encoding. For a big file you usually want a little of both, this page does the first, the image compressor does the second.
Which format should I choose?
JPG for photographs, PNG for screenshots, logos or anything needing transparency, WebP when you control where it is used and want the smallest file.
Why did my PNG get bigger after resizing?
PNG is lossless, a resized photo full of new pixel gradients can encode larger than the JPG original. Choose JPG or WebP output for photos.
Is there a file size limit?
Fifty megabytes per image, which covers phone and DSLR photos comfortably. Bigger originals should be exported smaller from their editor first.
Are my photos uploaded?
No. The resize runs in your browser’s canvas on your machine. Airplane mode works fine once the page is open.
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