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✓100% Free✓No Signup✓No Data Stored✓Works Instantly
✦ Image Tool
FREE ONLINE IMAGE RESIZER
Resize any image to exact pixel dimensions instantly. Lock aspect ratio, download as PNG. Nothing uploaded to any server — 100% private and free.
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Click to upload or drag and drop your image
JPG, PNG, WebP, GIF supported
Choose Image
What is an Image Resizer?
An image resizer changes the pixel dimensions of any image. Our free browser-based tool handles it instantly with no software installation required — just upload, set your dimensions, and download.
Common Social Media Image Sizes
- Instagram post: 1080 x 1080 px square
- Facebook cover: 820 x 312 px
- Twitter header: 1500 x 500 px
- YouTube thumbnail: 1280 x 720 px
- Website hero: 1920 x 1080 px
- Email header: 600 x 200 px
How to Resize an Image Online
- Click Choose Image or drag your photo into the upload area
- Your image preview appears with original dimensions shown
- Enter your desired width or height in pixels
- Enable Lock aspect ratio to maintain proportions
- Click Resize and Download — your image downloads instantly
Why Resize Images for Web?
- Smaller images load faster and improve Google PageSpeed scores
- Each social platform has specific dimension requirements
- Correctly sized images prevent automatic cropping on social media
- Resizing reduces file size and saves storage bandwidth
Frequently Asked Questions
Is the image resizer completely free?+
Yes, 100% free with no signup required. Resize unlimited images at any time.
Does my image get uploaded to a server?+
No. The entire resizing process happens locally in your browser. Your images never leave your device.
What image formats are supported?+
JPG, PNG, WebP, GIF and most common image formats. Resized images are exported as PNG.
Can I maintain the original aspect ratio?+
Yes. Enable Lock aspect ratio and enter just one dimension. The other value adjusts automatically to prevent distortion.
What is the maximum image size I can resize?+
No strict limit, though very large images over 50MB may slow your browser. For best results keep images under 20MB.