Image Resizer
Resize images to exact dimensions with preset sizes for social media. Lock aspect ratio or set custom width and height.
Your files never leave your device. All processing happens in your browser.
Drop an image here or click to upload
JPG, PNG, WebP -- up to 50MB
How It Works
1
Upload
Drag and drop or click to upload your image in JPG, PNG, or WebP format.
2
Set Dimensions
Enter custom width and height or pick a social media preset like Instagram or LinkedIn.
3
Download
Click download to save your resized image instantly. No server upload needed.
Frequently Asked Questions
How do I maintain the aspect ratio when resizing?
The aspect ratio lock is enabled by default (shown by the lock icon between width and height inputs). When locked, changing one dimension automatically adjusts the other to maintain the original proportions. Click the lock icon to unlock and set custom dimensions freely.
What preset sizes are available?
We offer 6 popular presets: Full HD (1920x1080), HD (1280x720), 800x600, Instagram Post (1080x1080), Twitter Post (1200x675), and LinkedIn Post (1200x627). Click any preset to apply it instantly.
Will resizing reduce the image quality?
Upscaling (making an image larger) can reduce sharpness since the browser must interpolate new pixels. Downscaling (making it smaller) generally preserves quality well. We use high-quality smoothing for the best possible result.
Are my images uploaded to any server?
No. The Image Resizer processes everything locally in your browser using the HTML5 Canvas API. Your images stay on your device at all times.