Image Resizer Online - Free Photo Resizer
Free photo resizer
Image Resizer Online
Resize JPG, PNG and WebP photos to exact pixel dimensions with aspect ratio control and live preview.
or drop image here - JPG, PNG or WebP - up to 20 MB
Your image never leaves your device — it is resized in your browser and we have no access to your files.
What Is an Image Resizer Online?
An image resizer online changes the width and height of JPG, PNG and WebP images so they fit websites, social posts, forms, thumbnails and profile photos. CompressImagePDF lets you resize image files to exact pixel dimensions directly in your browser.
Use it as a photo resizer when a picture needs a fixed size such as 1080x1080, 1280x720, 1920x1080 or a custom width and height. Aspect ratio lock helps keep the image from stretching while you adjust dimensions.
This image resizer focuses on pixel dimensions, not file-size targets. If you need to reduce KB after resizing, use Image Compressor next for dedicated compression presets.
Why Use Our Free Image Resizer Online?
Different platforms need different image dimensions. A square profile photo, wide header, HD thumbnail and website banner all require different pixel sizes.
Our image resizer gives you exact width and height controls, quick presets, live preview and aspect ratio locking so you can resize photos without distortion.
Processing happens in the browser for supported images. You can resize JPG, PNG and WebP photos privately with no signup and no watermark.
How to Resize Image Online
- 1
Upload Your Image
Click or drag and drop a JPG, PNG or WebP image. The image resizer accepts files up to 20 MB.
- 2
Set Width and Height
Enter exact pixel dimensions or choose a preset such as 1080x1080, 1280x720 or 1920x1080. Keep aspect ratio locked to avoid stretching.
- 3
Download the Resized Image
Preview the result, click resize, then download the resized photo in its original output format.
Key Features
Exact Pixel Resize
Resize images by width and height in pixels for websites, profiles, thumbnails and documents.
Aspect Ratio Lock
Keep proportions consistent while changing image size so photos do not look stretched.
Live Output Preview
Compare the original image with the target size before downloading the final file.
Private Photo Resizer
Resize JPG, PNG and WebP images in your browser with no signup and no watermark.
Supported Formats
| Use Case | Suggested Size | Best For |
|---|---|---|
| Square Photo | 1080x1080 px | Profile images and social posts |
| HD Image | 1280x720 px | Thumbnails and widescreen previews |
| Full HD | 1920x1080 px | Large website or presentation images |
| 4K Image | 3840x2160 px | High-resolution display assets |
| Facebook Post | 1200x630 px | Shared link and feed images |
| Twitter Header | 1500x500 px | Wide social header images |
| Custom Dimensions | Any width and height | Forms, uploads and site requirements |
Tips & Best Practices
Resize down when possible. Enlarging images beyond the original resolution can make them look blurry.
Keep aspect ratio enabled unless you intentionally need a stretched or exact-fit output.
Use square 1080x1080 output for many profile photos and social posts.
Resize before compressing. The Image Compressor can reduce file size after the dimensions are correct.
Check the live preview before downloading to make sure the new proportions look right.
Frequently Asked Questions
How do I resize an image online?
Upload a JPG, PNG or WebP image, enter the width and height you need, keep aspect ratio locked if you want to preserve proportions, then click resize and download the result.
Can I use this as a photo resizer?
Yes. The tool works as a free photo resizer for profile photos, social images, website graphics, thumbnails and form uploads that need exact pixel dimensions.
Can I resize an image to specific pixels?
Yes. Enter any custom width and height in pixels, or choose one of the quick presets such as 1080x1080, 1280x720 or 1920x1080.
Does this resize image file size in KB?
This Image Resizer changes pixel dimensions. The output file size may become smaller or larger depending on the image, but for a specific KB target you should use the Image Compressor tool.
What image formats does the image resizer support?
The Image Resizer supports JPG, JPEG, PNG and WebP uploads and keeps the output in the matching image format.
Can I resize multiple images at once?
This tool resizes one image at a time so you can preview dimensions and quality before downloading each result.