# Image Resizer

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[Tools](/#tools)

Resize one image or a whole batch by pixels or percent. Aspect ratio stays locked so nothing gets distorted.

Drop images here, or click to choose

Batch supported · aspect ratio locked by default

Mode

Width px

Height px

Keep ratio

Scale %

## How to use

1. Drop one image or a batch, then choose Pixels or Percent mode.

1. Enter one dimension with **Keep ratio** on, or choose a percentage.

1. Check the new dimensions in each row and download the files you need.

## Best results

For the web, size to the largest space the image will actually occupy rather than the camera’s full resolution. Reduce dimensions before [compressing](/compress/); pixels you remove cannot consume download bytes.

## Keep the ratio unless you have a reason not to

With **Keep ratio** on, set only one dimension and the other follows automatically — no squashed faces. Turn it off only when a layout demands exact dimensions, and prefer [cropping](/crop/) over stretching in that case.

## Common target sizes

- **1200 px wide** — blog content images and Open Graph cards.

- **1080 px** — Instagram feed; **1920 px** — full-screen hero images.

- **50%** — quick halving of oversized phone photos (12 MP → 3 MP, plenty for the web).

The output keeps each file’s original format. Full dimension reference: [image size cheat sheet](/articles/image-sizes-cheat-sheet/); the complete diet plan: [reduce image file size in 3 steps](/articles/reduce-image-file-size-for-web/).

![Nested rectangles comparing the same image at 1200, 800 and 400 pixels wide with their real file sizes](https://pixsquish.com/wp-content/themes/pixsquish/assets/img/resize-demo.webp)

Same image, three widths — real WebP q80 sizes measured in this browser. Pixels you don’t ship are the cheapest ones to compress.

## Frequently asked questions

### Will resizing distort my image?

Not with **Keep ratio** on (the default): set width or height and the other side is calculated automatically. Distortion is only possible if you turn the lock off and force both dimensions.

### Can I make an image bigger?

Yes, up to 400% in percent mode — but enlarging cannot invent detail that was never captured. Expect some softness. For print or serious upscaling, dedicated AI upscalers do a better job.

### What format do resized files come out in?

The same format they went in: JPG stays JPG, WebP stays WebP, everything else becomes PNG (lossless, safe). Use the [converter](/convert/) afterwards if you also want a format change.

[converter](/convert/)

## Standards and references

- [HTML canvas specification](https://html.spec.whatwg.org/multipage/canvas.html)

- [Image performance guidance](https://web.dev/learn/performance/image-performance)

## Related tools

[→Image CropperDrag to crop, with 1:1, 4:3, 16:9 and OG presets.](/crop/)

[→Image CompressorShrink file size with a live before/after slider.](/compress/)

[→Image ConverterPNG, JPG and WebP — batch convert in one drop.](/convert/)