🖼️ Image Resizer
Resize your images by ratio, dimensions, or presets
Choose or drop an image
Support for JPG, PNG, GIF, WebP
🔧 Resize Mode
📷 Original Image
✨ Resized Image
Image Resizer – Resize Photos to Any Size Online
To resize an image, upload it to the image resizer above, type the width or height you need (leave the aspect-ratio lock on so the proportions hold), click Resize, and download the result. A 4,032 × 3,024 px phone photo set to 1,200 px wide comes out at 1,200 × 900 px.
How to use this image resizer
- Add your image. Click the upload area or drag the file onto it. formats, e.g. JPG, PNG, WebP
- Enter the new size. Type a width or a height in pixels. With the lock on, the other number fills in for you.
- Click Resize. The preview shows the new dimensions before you save anything.
- Download the file. Open it once to check it looks right at the size you’ll actually use it.
What usually goes wrong
- The image looks squashed. You typed both a width and a height that don’t match the original ratio. Turn the lock back on and enter one number only.
- The result looks blurry. You made a small image bigger. More pixels doesn’t mean more detail (see below).
- The file is still huge. Resizing lowers the pixel count, but the format and quality setting decide the final file size. A PNG photo stays heavy at almost any size.
Limits and how your images are handled
| Supported formats | JPG, PNG, WebP |
|---|---|
| Maximum file size | 20 MB |
| Images at once | 1 image per resize |
| Where resizing happens | in your browser |
| When images are deleted | immediately after download |
| Signup or watermark | No signup, no watermark |
What size should you resize to?
Start from where the image will live, not from the original. Three quick cases:
| Use | Target size |
|---|---|
| Photo for email or a document | 1,200 px wide is plenty on screen. A 4,032 × 3,024 px phone photo drops to 1,200 × 900 px, about 11 times fewer pixels. |
| A 4 × 6 inch print | 4 in × 300 DPI by 6 in × 300 DPI = 1,200 × 1,800 px. |
| Image shown 800 px wide on a web page | 1,600 px wide, so high-density screens stay sharp. |
That last row comes from how browsers pick images for sharper displays. If you build sites, the MDN guide to responsive images shows how to offer a 1x and a 2x version. For social platforms, look up the platform’s current size guidance before you resize, since those numbers change.
Planning a carousel or a grid post? Cut the image into equal tiles once it is the right size.
Resizing is not compressing
People mix these up constantly. Resizing changes the dimensions: 4,000 px wide becomes 1,200 px wide. Compressing changes how the same pixels are stored, trading some detail for a smaller file. You can do either one alone, or both.
If your goal is a smaller file for an upload form, resize first. Cutting the pixel count usually shrinks the file far more than a quality slider does. Then, if the file is still over the limit, change the format with the image format converter.
How to resize an image without losing quality
You can’t resize with zero change, but you can keep it invisible.
- Go smaller, not bigger. Shrinking throws pixels away and usually looks clean. Enlarging has to invent pixels, so a 600 px image stretched to 1,200 px gets softer, not sharper. Double the width and height and you have four times the pixels but no new detail.
- Always work from the original. Resize once from the untouched file. Resizing a resized JPEG, then resizing that again, stacks small losses until edges look smudged.
- Keep the lock on. Changing only one dimension keeps the proportions intact.
- Keep the original. Save the resized copy under a new name so you can redo it at a different size later.
Need something else with your image?
- Image Format Converter to switch between formats after resizing
- Image to PDF to put resized photos into one document
- Image Splitter to cut one image into equal pieces instead of shrinking it
- Copy Color Grading of Image to match the look of another photo
- Convert TIFF to PDF for scanned documents
- All free PDF and image tools
Image resizer: common questions
How do I resize an image without losing quality?
Resize from the original file, make the image smaller rather than larger, and keep the aspect-ratio lock on. Shrinking keeps detail well. Enlarging a small image makes it look soft because the extra pixels are estimated.
What’s the difference between resizing and compressing an image?
Resizing changes the pixel dimensions, such as 4,000 px wide to 1,200 px wide. Compressing changes how the pixels are stored to make the file smaller, sometimes with a small loss of detail. Resizing usually reduces file size more.
How do I keep the same proportions when I resize?
Turn on the aspect-ratio lock and enter only a width or only a height. The tool calculates the other value from the original ratio, so nothing gets stretched.
Can I make a small image bigger?
You can, but it won’t gain detail. Enlarging adds estimated pixels, so the image looks softer. If you need a larger version, go back to the original file or a higher-resolution source.
Does resizing an image reduce the file size?
Usually yes, because fewer pixels means less data. The result also depends on the format and quality setting, so a PNG photo can stay large even after resizing.
Ready to use the image resizer? Scroll back to the tool at the top, or browse the full set of free PDF and image tools.