Image Resizer
Resize images directly in your browser with pixel-perfect control. Enter custom dimensions or choose from social media presets (Instagram post, Facebook cover, Twitter header, YouTube thumbnail, and more). Maintain aspect ratio or set exact dimensions. Preview the result before downloading. All processing happens client-side using the Canvas API — your images never leave your device.
Drop image here or click to browse
Accepts any image format
How to Use
- 1
Upload Image
Drag and drop or click to select a JPG, PNG, or WebP image.
- 2
Set Dimensions
Enter custom width and height, or choose a social media preset.
- 3
Download
Preview the resized image and download it to your device.
Examples by Niche
Resize a photo to 1080x1080 for a perfect square Instagram post
Resize to 1280x720 for YouTube video thumbnails
Resize to 1584x396 for LinkedIn profile background
Frequently Asked Questions
What social media presets are available?
Presets include Instagram post (1080x1080), Instagram story (1080x1920), Facebook cover (820x312), Twitter header (1500x500), YouTube thumbnail (1280x720), LinkedIn banner (1584x396), and more.
Is my image uploaded to a server?
No, all resizing happens entirely in your browser using the Canvas API. Your images never leave your device.
Can I maintain the aspect ratio when resizing?
Yes, toggle the aspect ratio lock to maintain proportions when changing width or height. You can also unlock it to set exact custom dimensions.
Does resizing an image reduce its file size?
Yes, reducing an image dimension directly reduces its file size because there are fewer pixels to store. For example, halving both width and height reduces pixel count by 75%, resulting in a significantly smaller file. The exact savings depend on the format and compression settings used.
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