Image Resizer
Resize photos to exact pixel dimensions. Enter a custom width and height or pick a preset for Instagram, Facebook and more. Your images stay sharp thanks to high-quality resampling.
How to image resizer
Three steps. No Photoshop skills needed.
Upload an image
Pick any photo or graphic from your device.
Set dimensions
Enter width and height in pixels or choose a preset size.
Download resized image
Save the resized photo in the same format or switch to another.
What You Can Do with This Tool
Resizing changes the pixel dimensions of your image. A 4000x3000 photo can become 1200x900 for web use, or 800x600 for email. The key concept is aspect ratio, which is the relationship between width and height. A 4:3 image should stay 4:3 after resizing unless you intentionally want to change proportions.
Pixels and DPI are different things. Pixels define the actual image size on screen. DPI (dots per inch) only matters for printing. A 300 DPI image at 3000x3000 pixels prints beautifully at 10x10 inches. For web and screen use, DPI is irrelevant. Only pixel dimensions matter.
Resize when your image is too large for its purpose. A 20-megapixel camera photo is overkill for a blog post. Website images between 800 and 1600 pixels wide load fast and look sharp on most screens. Email attachments should be under 1MB when possible, and resizing is the quickest way to get there.
This tool lets you set exact pixel dimensions or scale by percentage. The image quality stays high because the tool uses proper downsampling algorithms instead of crude pixel dropping.
Frequently Asked Questions
Why does my image look blurry after I resize it? I only made it slightly bigger and now it's pixelated.
Making an image bigger (upscaling) always causes some blur because the software has to invent pixels that didn't exist. Downscaling, making it smaller, works great because you're removing detail, not creating it. If you need a larger image, start with a higher-resolution photo.
What's the difference between DPI and resolution? My printer says I need 300 DPI.
Resolution is the actual pixel count of your image (like 3000x2000). DPI (dots per inch) is how densely those pixels get printed on paper. A 3000x2000 image at 300 DPI prints at 10x6.7 inches. At 72 DPI, the same image prints at 41x28 inches but looks pixelated up close. For web use, DPI doesn't matter. Only pixel dimensions count.
How do I resize without stretching? It keeps distorting when I change only the width.
Lock the aspect ratio. Our tool does this by default. When you change the width, the height adjusts automatically to keep the same proportions. If you need an exact width AND height that don't match the original ratio, you'll need to crop instead of resize.
I need to resize my photo to under 500KB for a job application but keep it looking decent. How?
Resizing the dimensions will reduce file size, but if you need a specific KB target, use our Image Compressor instead. It keeps your dimensions the same but adjusts the compression level to hit your target file size. For the best result, resize the dimensions down first if the image is way larger than you need, then compress.
Is there a free tool to batch resize images? I have 200 product photos that all need to be 1080x1080.
This tool processes one image at a time. For bulk work, our Product Photo Resizer has marketplace presets and handles the resize and padding automatically. You can process multiple images back to back without resetting your size settings each time.