Exact Dimensions
Enter precise width and height values for uploads, websites, forms, documents, and social media.
Image Tools
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Free Online Tool
Image Resizer
Resize PNG, JPG, JPEG, and WebP images to exact pixel dimensions in your browser.
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Browser-Based
Online Tool
Image Resizer
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Private Browser Image Tool
Resize Images to Exact Pixel Dimensions
Upload a photo, screenshot, or WebP image, set a new width and height, keep the aspect ratio if needed, preview the output size, and download a resized copy.
Local Processing
Your image is resized in the browser, so the workflow stays on your device.
Quick Presets
Use percentage buttons or common width presets to resize faster.
Upload Image
Resize Settings
Original
Output
Scale
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Resized Preview
Awaiting Image
Upload an image to set new dimensions and preview the resize workspace here.
Output size
Free Online Image Resizing Tool
Image Resizer: Resize JPG, PNG and WebP Online
Use this Image Resizer to change the width and height of PNG, JPG, JPEG, and WebP images directly in your browser. It is useful when a website, form, marketplace, document, or social platform requires specific pixel dimensions.
You can keep the original aspect ratio, enter exact dimensions, choose quick scale presets, preview the output size, and download a new resized copy without sending the image to a remote editor.
Set Exact Pixel Size
Enter the width and height needed for uploads, profiles, thumbnails, products, or documents.
Resize in the Browser
The resize workflow runs locally, which keeps the process fast and private.
Keep Proportions
Lock the aspect ratio to avoid stretched or squeezed images.
Resizing Changes Image Pixels
Resizing changes the number of pixels in an image. Making an image smaller removes detail, while making it larger asks the browser to invent extra pixels from the original.
For best quality, start with the largest clean original you have. Resize a copy for upload or publishing, and keep the original file for future editing.
What the Image Resizer Does
The Image Resizer changes the pixel dimensions of a picture. You can reduce a large image for faster upload, create a thumbnail, prepare a product photo, or match a required width and height for an online form.
Unlike compression, resizing changes the actual width and height of the image. This affects how much visual detail the final file can contain.
How to Resize an Image Online
- Upload a PNG, JPG, JPEG, or WebP image.
- Check the original width and height shown by the tool.
- Keep aspect ratio enabled if you want natural proportions.
- Enter the new width or height, or choose a quick preset.
- Preview the output dimensions.
- Download the resized image.
When to Keep Aspect Ratio
Keeping aspect ratio prevents distortion. If a photo is 1600×900 and you change only the width, the height should change with it so the image still looks natural.
Turn off the lock only when you intentionally need a forced size, such as a strict form requirement. Forced sizes can stretch faces, logos, products, and screenshots.
Resizing vs Compressing
Resizing changes pixel dimensions. Compressing reduces file size by changing how the image is saved. If the image is too wide or tall, resize it. If the dimensions are correct but the file is heavy, compress it.
A common workflow is to resize first for the required dimensions, then compress the resized file if the upload limit is still too strict.
Quality Tips
Downscaling usually looks good because it removes pixels. Upscaling can look softer because new pixels are estimated from the original image.
Avoid enlarging small screenshots or text-heavy images too much. For product photos, start with a clean large source image and resize down to the platform requirement.
Common Uses for an Online Image Resizer
- Resize profile photos to exact pixel dimensions.
- Prepare product images for ecommerce platforms.
- Create thumbnails for blogs, videos, and galleries.
- Fit images into upload forms with strict size rules.
- Resize screenshots before adding them to reports.
- Prepare images for email signatures and documents.
- Reduce oversized photos before compressing them.
- Create smaller copies for faster web pages.
Image Resizer Specifications
| Feature | Details |
|---|---|
| Accepted formats | PNG, JPG, JPEG, and WebP |
| Resize method | Canvas-based browser resizing |
| Aspect ratio | Optional lock to preserve proportions |
| Presets | Percentage scale and common width buttons |
| Processing | Runs in the browser |
Image Resizer FAQ
Can I resize PNG and JPG images?
Yes. The tool supports PNG, JPG, JPEG, and WebP images.
Does resizing reduce quality?
Reducing size usually keeps a clean result, but enlarging an image can make it softer because new pixels must be estimated.
What does aspect ratio mean?
Aspect ratio is the relationship between width and height. Keeping it locked prevents the image from stretching.
Can I enter exact dimensions?
Yes. Enter the width and height values you need, or use a preset button.
Is this the same as image compression?
No. Resizing changes width and height in pixels. Compression focuses on reducing file size.
Are my images uploaded to the server?
The resize workflow runs in the browser, so the image is processed locally on your device.
Why does the tool block very large output sizes?
Huge canvas sizes can crash or freeze a browser. The tool limits very large outputs to keep processing safe.
Will the resized file keep the same format?
The tool exports using the uploaded image type, such as PNG, JPG, or WebP.
Free online image resizer for PNG, JPG, JPEG, and WebP files. Change width and height, keep aspect ratio, use quick size presets, preview dimensions, and download the resized image locally.
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