Resize Image Online: Change Image Dimensions in Seconds
Drag & drop images here
or click to select files
Max 20 files, 10MB each
Your files never leave your browser. All processing happens locally.
Resize your images to exact pixel dimensions directly in your browser. Use our presets for social media platforms or enter custom dimensions. Perfect for preparing images for websites, presentations, or social media posts.
Why Dimensions Matter
Wrong size → Cropped or stretched
- Upload 1920×1080 to Instagram Post
- Instagram crops to 1080×1080
- You lose 44% of your image
Right size → Perfect display
- Resize to 1080×1080 first
- Control what gets shown
- Full image displayed
💡 Pro tip: Always resize before uploading to social media. Platforms compress images aggressively — starting with the right dimensions gives you the best quality.
How to Resize Images
- Upload your images by dragging or clicking
- Select a preset or enter custom width and height
- Toggle "Maintain aspect ratio" to prevent distortion
- Choose output format and quality
- Click "Resize" and download your images
Available Presets
Instagram Post
1080 x 1080
Instagram Story
1080 x 1920
Twitter Header
1500 x 500
LinkedIn Cover
1584 x 396
YouTube Thumbnail
1280 x 720
Favicon
32x32, 64x64, 180x180
Frequently Asked Questions
Is this image resizer free?
Yes, completely free with no signup required. Resize unlimited images.
Are my images uploaded to a server?
No. All processing happens in your browser. Your files stay on your device.
What presets are available?
We include presets for Instagram (Post & Story), Twitter/X Header, LinkedIn Cover, YouTube Thumbnail, and various favicon sizes.
Can I maintain the aspect ratio?
Yes. Toggle the "Maintain aspect ratio" option to prevent image distortion.
What output formats are supported?
You can output resized images as JPG, PNG, or WebP.
Related Tools
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Do it all in one flow with our Image Workflow tool.