GXgideox

Image Resizer: Resize Photos Online for Free

Resize photos to exact pixel dimensions for social media, websites, forms and email.

📐 Exact pixels · Aspect ratio lock

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File handling: your image is uploaded to our server only to run the job and is not kept for any other use. Process only images you own or have permission to use. Read the privacy policy.

Why use Image?

Exact pixel control

Enter any width and height you need.

Aspect ratio lock

Stops pictures looking squashed or stretched.

Batch resizing

Give a folder of photos the same width in one go.

Temporary server processing

Your image is used only to do the job and then removed. See the file-handling note under the tool.

Smaller files

Fewer pixels also means a lighter file for email and web pages.

No watermark

The resized image is clean.

How it works

Step 01

Choose your images

Select one or more JPG, PNG, WebP, GIF, BMP or TIFF files.

Step 02

Enter the dimensions

Type the width and height in pixels, or set one and let the other follow.

Step 03

Resize

Press "Resize". The quality slider applies to lossy formats.

Step 04

Download the results

Save your resized images.

Resizing images: pixels, ratios and sensible sizes

Pixels versus file size

Resizing changes the number of pixels. Compressing changes how tightly each pixel is stored. A 12-megapixel phone photo is around 4000 by 3000 pixels, and most screens never need that much. Resized to 1600 by 1200 it holds about 16 percent of the pixels.

Sizes that come up again and again

1080 by 1080 and 1080 by 1350 suit Instagram posts, 1280 by 720 suits YouTube thumbnails, and 1200 by 630 is the usual size for link-preview images. A LinkedIn banner is 1584 by 396. Check the platform’s current guidance, as these change now and then.

How the aspect ratio works

Aspect ratio is the proportion between width and height. Keeping it locked means that when you change one number the other follows, so a 1920 by 1080 image set to 1280 wide becomes 1280 by 720.

Why enlarging disappoints

Making a small image large does not create detail. It stretches the pixels you have, so edges blur. For print or a big screen, go back to the original file.

Websites and speed

Oversized images are one of the most common reasons a page loads slowly. Google treats a Largest Contentful Paint of 2.5 seconds or less as good, and the hero image is often what decides it. Resize to the display size, not the camera size.

Need a certain shape such as square? Crop in your phone gallery first, then resize here so nothing gets stretched.

Frequently asked questions

How do I resize an image to an exact size in pixels?+

Upload the image, type the width and height you need, keep the aspect ratio option on unless you want to stretch it, and press Resize.

What size should an Instagram photo be?+

A common choice is 1080 pixels wide: 1080 by 1080 for a square post and 1080 by 1350 for a portrait post. Stories use 1080 by 1920.

What size is a YouTube thumbnail?+

1280 by 720 pixels, with a file under 2 MB. That is a 16:9 shape, the same as most videos.

Does resizing reduce file size?+

Yes, because fewer pixels means less data. Halving the width and height leaves a quarter of the pixels, so the file usually becomes much smaller.

Will making an image bigger make it sharper?+

No. Enlarging only stretches existing pixels, so it can look soft or blocky. Start from the biggest original you have and make it smaller instead.

What does keep aspect ratio mean?+

The width and height change together, so the picture does not look squashed or stretched. Resize a 1920 by 1080 image to 1280 wide and the height becomes 720 automatically.

Can this crop my image?+

It resizes the whole picture. If you need a different shape, such as square, crop it in your phone’s editor first and then resize here.

Is this image resizer free?+

Yes. Resizing is free, works on phones as well as computers, and adds no watermark.

Is there a file size limit?+

Yes. Images larger than 20 MB are not accepted. Resize several images together to save time.

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