Free Online Tool
Image Resizer
Resize images to any dimensions online. Set exact width and height or choose social media presets. Free, no signup, no upload to servers.
Upload Image
Drop an image here or click to upload
Supports JPG, PNG, WebP
Settings
Any Dimensions
Set exact pixel dimensions or use presets for social media, print, and documents. Resize to any width and height.
100% Private
All resizing happens in your browser. Images never leave your device — nothing is uploaded to any server.
Social Media Presets
One-click presets for Instagram, Facebook, Twitter/X, LinkedIn, YouTube, Pinterest, and TikTok dimensions.
Multiple Formats
Input and output in JPG, PNG, or WebP. Choose the best format for your use case with adjustable quality.
Aspect Ratio Lock
Keep the original proportions intact or unlock to set custom dimensions. Toggle with one click.
Print & Document Sizes
Presets for A4, Letter, passport photos, app icons, and common print formats at 300 DPI.
How It Works
Upload Image
Drag and drop or click to select an image (JPG, PNG, or WebP).
Set Dimensions
Enter exact width and height, or click a preset for social media, print, or common sizes.
Preview Result
See how your resized image will look with the new dimensions before downloading.
Download
Click download to save the resized image to your device in your preferred format.
Frequently Asked Questions
The resizer uses your browser's HTML5 Canvas API to redraw your image at the new dimensions. Everything runs locally — your images are never uploaded to any server.
Upscaling (making images larger) may reduce apparent sharpness since new pixels must be interpolated. Downscaling (making images smaller) generally preserves quality well. For best results, start with the highest resolution source image you have.
The resizer supports JPG/JPEG, PNG, and WebP images for both input and output. You can choose your preferred output format in the settings.
Yes! The aspect ratio lock is enabled by default. When locked, changing the width automatically adjusts the height (and vice versa) to maintain the original proportions.
We include presets for popular social media platforms (Instagram, Facebook, Twitter/X, LinkedIn, YouTube, Pinterest, TikTok), common resolutions (HD, Full HD, 4K), print sizes (A4, Letter, 4x6), and document sizes (passport photos, app icons).
The maximum output size is limited by your browser's canvas implementation, typically around 16,384 x 16,384 pixels. For practical purposes, this covers all common use cases including 4K and large print formats.
Ready to Resize?
Upload your image and resize it to any dimensions in seconds. Free, private, and no signup required.