Social media thumbnails
Each platform has specific image dimensions. Resize photos to the exact pixel size required for Twitter, LinkedIn, Instagram, or Facebook cover images.
Resize Images Online to Any Dimension
Change image dimensions to exact pixels or a percentage of the original. Supports JPG, PNG, and WebP with aspect ratio lock to prevent distortion. Runs entirely in your browser.
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Drop an image here or click to browse
Resize to 1920 × 1080 px • JPG, PNG, WebP
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Exact Dimensions
Set custom pixel sizes or pick from 12 social-media & display presets.
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Instant Resize
Upload an image and see the resized result instantly with before/after preview.
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100% Private
Everything runs in your browser. No images are uploaded or stored.
When to Resize an Image
Product listing photos
E-commerce platforms often require images at a specific resolution. Resize product photos to match platform requirements before uploading.
Email and web images
Large images slow down emails and web pages. Resize to a display-appropriate size first, then compress for the best balance of quality and speed.
How to Resize an Image Online
1
Upload image
Drag or click to upload a JPG, PNG, or WebP file.
2
Set dimensions
Enter the target width and height in pixels or a percentage.
3
Maintain aspect ratio
Lock the ratio to prevent distortion when resizing.
4
Download
Download the resized image in your chosen format.
Common Image Dimensions by Platform
Different platforms require specific image sizes. Profile photos are typically square (400x400 or 800x800 pixels). Blog post featured images are usually 1200x630 pixels for sharing previews. Twitter post images work best at 1200x675 pixels. Instagram square posts are 1080x1080 pixels. E-commerce product images vary but 800x800 or 1000x1000 pixels is a common starting point. Resizing to the correct dimensions before uploading prevents platforms from cropping or compressing your images in unexpected ways.
Resize vs. Compress: What Is the Difference?
Resizing changes the number of pixels in the image. A 4000x3000 pixel photo resized to 800x600 pixels contains less data, which automatically reduces file size as a side effect. Compression reduces file size by encoding the existing pixel data more efficiently, without changing the dimensions. For the best results, resize first to your target display dimensions, then apply compression to further reduce the file size without sacrificing sharpness.
Frequently Asked Questions
- How do I resize an image without stretching or distorting it?
- Enable the 'maintain aspect ratio' option. Enter either the target width or height — the other dimension is calculated automatically to keep the original proportions.
- Can I resize an image to a specific file size, not just pixel dimensions?
- Pixel dimensions and file size are related but not the same. After resizing to your target dimensions, use the Image Compressor to reduce the file size further.
- What is the difference between resizing and cropping?
- Resizing changes the entire image to new dimensions. Cropping cuts away the edges to show only a selected portion of the image.
- Can I resize multiple images at once?
- Yes. Upload several images together and apply the same dimensions to all files in one batch.
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