Image Resizer

100% Free

Drag & Drop your image here

or click to browse

JPG, PNG, WebP, AVIF, HEIC, SVG, GIF, BMP, TIFF

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Upload an image to start resizing.

Resized Image

100% Free

All tools are completely free to use.

Privacy First

Your files are never uploaded or stored on our servers.

Super Fast

Compress and process files in seconds.

High Quality

Best results with minimal quality loss.

What is Image Resizer?

Image Resizer is a free online tool that lets you resize images by exact pixel dimensions or by percentage scale. Type in a target width and height (with aspect ratio locking to avoid distortion), pick from common presets like 1920×1080 or 800×600, or simply scale the whole image up or down by a percentage.

Perfect for social media posts, website images, thumbnails, and any project that requires specific dimensions. All resizing happens instantly in your browser — your images are never uploaded to a server.

How to Use Image Resizer

1

Upload your image

Drag and drop your file or click to browse. The current dimensions appear straight away.
2

Choose pixels or percentage

Enter an exact width and height, pick a preset like 1920×1080, or switch to percentage mode to scale the whole image proportionally.
3

Check the aspect ratio lock

Leave it on to keep the image undistorted, or turn it off if you need exact dimensions and can accept stretching.
4

Download

Preview the result and save it. Nothing is stored once you close the tab.

Frequently Asked Questions

It keeps the width and height in their original proportion, so changing one automatically updates the other. Without it you can set any dimensions you like, but the image will stretch or squash. Leave it locked unless you deliberately want distortion.

Only up to a point. Enlarging invents pixels that were never captured, so a small image scaled to 400% will look soft no matter what tool you use. Modest upscaling of 110-150% usually holds up fine. If you need a genuinely larger image, start from the highest-resolution original you have.

The common ones are 1080×1080 for a square Instagram post, 1080×1350 for a portrait post, 1080×1920 for Stories and Reels, 1200×630 for a Facebook or link-preview image, and 1600×900 for a YouTube thumbnail. The presets cover the most-used sizes so you do not have to remember them.

Pixels give you an exact target — use it when something requires a specific size, like a 1920×1080 banner. Percentage scales relative to the original — use it when you just want the image roughly half or a quarter of its current size and the exact numbers do not matter.

No. Resizing happens entirely in your browser. Your images never leave your device, and there are no file-size caps, watermarks or sign-ups.