Image Resizer
Resize any image to exact pixels, a percentage, or a ready-made social preset.
Runs in your browser. Nothing is uploaded.JPG, PNG, WEBP · up to 100MB · one image at a time
Original
Resized
Image Resizer in 3 steps
Add your image
Drop a JPG, PNG or WEBP file onto the drop zone, or click to browse. Its original dimensions appear automatically.
Choose a size
Type exact pixels, drag a percentage slider, or pick a ready-made social media preset — lock aspect ratio to avoid stretching.
Resize and download
Click Resize image. A before/after preview appears instantly and the resized file downloads in one click.
Why use this Image Resizer
Questions about this tool
Will resizing reduce my image quality?
Making an image smaller rarely causes visible quality loss. Making it significantly larger than its original size can introduce some softness, since new pixels are being interpolated rather than captured by a camera.
What does "Lock aspect ratio" do?
When enabled, changing the width automatically recalculates the height (and vice versa) to keep the same proportions as the original image, preventing a stretched or squashed result.
Which preset should I use for Instagram?
Instagram Post (1080×1080) works well for square feed posts, while Instagram Story (1080×1920) matches the full-screen story format.
Can I make an image larger than its original size?
Yes, the percentage mode accepts values above 100% and pixel mode accepts any width and height you type, though enlarging significantly beyond the original resolution may look softer.
Practical example
See How to prepare an image for a size-limited form for a worked example and the checks to make before using your result.