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Resize Image Online

Change dimensions for YouTube, Instagram, and more.

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Resize Dimensions

100% Free No Quality Loss

Online Image Resizer

Need to fit a photo into a specific frame? Our Free Image Resizer allows you to change the width and height of your images instantly.

We've included handy presets for social media. One click instantly sets your image to the correct dimensions for a YouTube Thumbnail or Instagram Story, saving you time looking up sizes.

Resize images to exact dimensions in one click

Type the width or height you need and the tool does the rest — proportions are locked by default so nothing gets stretched. Presets for common sizes (1080×1080 for Instagram, 1920×1080 for thumbnails and banners) save you the mental math.

It handles upscale too, though making an image bigger can never invent detail that wasn't there. Downscaling, on the other hand, is crisp and lossless-looking — perfect when a site demands "max 800px".

What people use it for

  • Squaring photos to 1080×1080 for Instagram posts
  • Shrinking images to a site's maximum pixel limit
  • Making consistent thumbnail sizes for a blog or shop
  • Resizing scanned documents before emailing them

Frequently asked questions

How do I keep the aspect ratio while resizing?

The lock is on by default: change the width and the height follows automatically. Click the chain icon to unlock it if you need an intentional stretch.

Will resizing reduce quality?

Shrinking keeps images sharp. Enlarging softens details — that is physics, not the tool — so resize up only in small steps.

What is the maximum size?

There is no artificial cap; very large images are limited only by your device memory.

Can I resize many images at once?

Yes, queue several files and download the resized batch in one go.