How to resize an image to exact pixels

Use the Resize Image tool. Your image is processed in your browser and is never uploaded.

Contents

• Steps
• When this helps
• Frequently asked questions
• Limits

Takeaways

• Type the exact width and height you need — the tool does not guess a size for you.
• Keep aspect ratio ticked unless you mean to stretch the image.
• You can change format (PNG, JPG, WebP) in the same step.

Steps

1. Choose an image. The tool shows its original size in pixels.
2. Type the width and height you want. With "Keep aspect ratio" ticked, changing one side sets the other to match.
3. Pick the output format: PNG, JPG or WebP.
4. Resize the image and download the resized file. Check the result before using it where size matters, for example a form upload.

When this helps

Matching a form's exact pixel requirement, shrinking a photo for a page or post, or preparing images at one consistent size — for example, product photos for a listing.

Frequently asked questions

How do I resize an image to exact pixel dimensions?

Open the Resize Image tool, choose the image, type the width and height you want, and download the resized file. The tool shows the original size first, so you can see what you are changing from.

Will resizing keep the image's proportions?

Yes, when the "Keep aspect ratio" box is ticked — changing the width then sets the height to match, and changing the height sets the width. Untick it only when you want to stretch the image to different proportions on purpose.

Can I change the format while resizing?

Yes. The tool offers PNG, JPG and WebP as the output format, so you can resize and change format in one step.

Is my photo uploaded when I resize it?

No. The image is processed in your browser and never uploaded to Tools99.

Limits

Resizing changes pixel dimensions; it does not improve a blurry or low-resolution original, and enlarging a small image beyond its original size will look softer. Very large images may be slow or fail on low-memory devices — that is a browser limit, not a file-size cap on this site.

Browse the Image tools hub for the other picture tools.

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