Image Resizer
Resize images to exact dimensions or choose a preset. Runs in your browser.
Click to upload or drag & drop
JPG, PNG, WebP supported
About the Image Resizer
Different platforms expect different image dimensions — a profile picture, a social media post, and a website banner all have their own ideal sizes, and uploading the wrong dimensions often means an awkward crop or unwanted stretching. This tool resizes images to exact pixel dimensions, either using common presets for popular platforms or your own custom width and height.
Everything happens locally in your browser using the HTML5 Canvas API, so your images are never uploaded anywhere in the process.
How to use it
- Upload your image
- Choose a preset size, or enter custom dimensions
- Use the lock icon to maintain aspect ratio, or unlock it to stretch freely
- Choose an output format and click "Resize Image"
Frequently Asked Questions
What happens if I unlock the aspect ratio?
The image will be stretched or squashed to fit the exact width and height you specify, which can distort the image if the new proportions differ significantly from the original.
Will resizing to a larger size improve the image quality?
No — enlarging an image beyond its original resolution won't add real detail; it will just stretch the existing pixels, which can make the image look softer or blurrier.
Which social media sizes are most common?
Square (1080×1080) works well for general posts, 1080×1920 for stories, and 1280×720 for video thumbnails — though exact requirements can change, so it's worth checking the platform's current guidelines too.