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Image Converter Tools · Browser-based
Free Image Resizer
Resize JPG, PNG, WebP and other browser-supported images to the dimensions you need. Keep the aspect ratio, adjust quality, preview the result and download the resized image immediately.
Resize without uploading your image
The resizing happens in your browser using Canvas, so the image does not need to be sent to the Worker just to change its dimensions.
FreeNo sign-up
PrivateBrowser processing
4Output choices
FastInstant preview
Image Resizer
Upload an image and choose the new size
Use exact pixel dimensions or choose a percentage. Keep aspect ratio on to prevent stretching.
Choose an image or drag it here.
Recommended input: JPG, PNG or WebP. GIF and some newer formats depend on browser support and animated GIFs resize as a single frame.
Choose your dimensions, then click Resize Image.
Resized Preview
Your resized image will appear here.
Useful image sizes
Common sizes for websites and social content
Square social image
1080 × 1080 px is a common square format for social posts and visual assets.
Portrait social image
1080 × 1350 px is useful for portrait feed creative where the platform supports it.
Story / vertical creative
1080 × 1920 px is a common 9:16 vertical size for stories, reels and short-form placements.
Landscape ad or banner
1200 × 628 px is a useful landscape starting point for many campaign and link-image workflows.
How it works
Resize an image in three steps
1. Add the image
Choose a supported image from your device. The tool reads the image locally in your browser.
2. Set the dimensions
Enter the width or height, keep the aspect ratio locked if needed, or resize the original by a percentage.
3. Preview and download
Choose JPG, PNG or WebP, adjust quality where relevant, resize the image and download the result.
FAQs
Image Resizer questions
Is this image resizer free?
Yes. The Image Resizer is free to use and does not require a sign-up on the tool page.
Does the image get uploaded?
The resize operation is designed to run in the browser using Canvas. The tool does not need to upload the image to the Worker just to resize it.
Which image formats can I resize?
JPG, PNG and WebP are the safest choices. Other browser-readable formats can work too, depending on the browser. Animated GIFs are processed as a single frame.
How do I resize without stretching the image?
Leave Keep aspect ratio switched on. When you change the width, the height is recalculated automatically, and vice versa.
Can I make an image larger?
Yes. You can increase the pixel dimensions or use a percentage above 100%, although enlarging a small source image cannot create missing detail and may look softer.