Resize Images
Set a new width and height for any image in pixels or as a percentage. The aspect ratio stays locked by default, so nothing looks stretched.
Click to upload or drag & drop
or paste from clipboard (Ctrl+V)
Supports JPEG, JPG, PNG, WebP, AVIF — multiple files and folders allowed
What is Resize Images?
Resizing changes an image's pixel dimensions — its width and height. Unlike compression, it doesn't lower quality; it simply shows more or fewer pixels. Downsizing (making an image smaller) is the quickest way to shrink a file for the web.
Key Features
- Set exact dimensions in pixels or scale by percentage
- Lock the aspect ratio so proportions never distort
- Batch-resize several images with one setting
- Preview the result before you download
- Export to JPG, PNG, WebP, or AVIF
How to Use This Tool
Upload your image
Drag a photo into the tool or pick it from your device. Files stay on your computer.
Enter new dimensions
Type a target width, height, or percentage. The other value fills in automatically when the ratio is locked.
Download
Save the resized image in its original format or convert it to another.
Image Format Comparison
When you resize images, the format you export to changes the balance between quality and file size. Here's how the common formats compare:
| Format | Best for | Transparency | Typical file size |
|---|---|---|---|
| JPG | Photographs, complex images | No | Baseline |
| PNG | Logos, graphics, text | Yes | 2–5× JPG |
| WebP | Web images (modern) | Yes | 25–34% smaller than JPG |
| AVIF | Next-gen web delivery | Yes | ~50% smaller than JPG |
Frequently Asked Questions
Does resizing reduce image quality?
Downsizing usually looks crisp because you're removing pixels. Enlarging can soften detail, since the image gains pixels it didn't have. For best results, downsize rather than stretch upward.
What's the difference between resizing and compressing?
Resizing changes pixel dimensions; compressing reduces file size by lowering quality or trimming data. You can do both — a smaller image is also a smaller file.
Can I resize to exact social media sizes?
Yes. Enter the exact pixels you need, such as 1080×1080 for a square post, and the tool matches them.
Is it free to resize images here?
Yes. Resizing is free, runs in your browser, and has no sign-up or file-size limits.
Related Tools
Image Resizer
A free online image resizer for photos and graphics. Set exact pixels or a percentage, lock the ratio, preview the result, then download. No sign-up, and your images stay on your device.
Reduce Image Size
Reduce image size online by resizing, compressing, or both — handy for email attachments, upload limits, and faster-loading pages. Runs entirely on your device.
Compress Images
Compress JPG, PNG, and WebP images online. Drag in a photo, move the quality slider, and watch the file shrink with a live before-and-after preview. Nothing leaves your device.
Resize JPG Images
Resize JPG photos online in pixels or percentages. The aspect ratio stays locked so they never stretch, and you can download straight from your browser. Nothing is uploaded to a server.