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Resize Image in Pixels - Set Exact Width and Height Online

Enter a width and height in pixels, or just a width to keep the proportions. Fast, free and processed on your own device.

What is Resize Image (pixels)?

A pixel image resizer changes the width and height of a picture. Websites, social networks, online forms and ID systems often ask for an exact size such as 800 x 600 or 200 x 230 pixels. This tool scales your JPG, PNG or WebP image to the size you type. Leave the height empty and it is calculated automatically so the picture is not stretched.

How to use Resize Image (pixels)

1Add your image with the upload box.
2Type the new width in pixels. Add a height only if you want a fixed size; leave it blank to keep the aspect ratio.
3Press Start to resize the picture.
4Download the resized image, or rename it first.

Why use Resize Image (pixels)?

  • Exact pixel control for forms and web design.
  • Automatic height keeps photos from looking stretched.
  • Works with JPG, PNG and WebP, and with many files at once.
  • Private by design - nothing is uploaded.

Who can use Resize Image (pixels)?

  • Students and job seekers following portal photo rules.
  • Bloggers and designers preparing images for websites.
  • Social media managers who need posts in a fixed size.
  • Anyone shrinking a big photo for email.

When should you use it?

  • When a form asks for 'width 200 px, height 230 px'.
  • When a banner or thumbnail must match a layout.
  • When you want a smaller, faster-loading image.

Where can you use it?

  • Use it before uploading to any website, form or social profile.
  • Works in Chrome, Edge, Firefox and Safari on Windows, Mac, Linux, Android and iPhone - no app or software to install.

Tips for best results

  • Resize down rather than up - enlarging a small photo makes it blurry.
  • To resize and limit the file size together, use Compress Image to KB after resizing.
  • For print sizes in cm, mm or inches use the Resize in cm / mm / inch tool.

Related tools

Compress Image to KBResize in cm / mm / inchPassport Photo MakerConvert Image FormatCrop ImageRotate & FlipBackground RemoverIncrease Image Size in KBImages to PDF

Resize Image (pixels) - frequently asked questions

How do I resize an image to a specific pixel size?

Upload the image, type the width and height in pixels and press Start. Download the new file when it is ready.

How can I keep the aspect ratio?

Fill in only the width and leave the height blank. The height is calculated from the original proportions.

Will resizing reduce quality?

Making an image smaller keeps it sharp. Making it much larger than the original will look soft.

What image formats are supported?

JPG, PNG and WebP. Where your browser supports them, HEIC and AVIF files can also be opened.

Is it safe to resize private photos here?

Yes. The image is processed inside your browser and is never sent to a server.

Is it free and private?

Yes. AllrounderBox is free, needs no sign-up and never uploads your files – processing happens on your own device.

Does it work on mobile?

Yes. It works in any modern browser on phones, tablets and computers.