1
Upload a supported image
Drag and drop your image into the upload area or click to browse files. JPG, PNG, and WebP formats are supported.
- One image is processed at a time for precise resizing
- Accepted formats: JPG, PNG, WebP
Image Resizer Online
Resize images online by changing width and height in pixels. Upload a JPG, PNG, or WebP image, set your target dimensions, and download the resized image. Fast, free, and private — all processing happens in your browser.
NewTools Image Resizer lets you resize images online by changing width and height in pixels. Upload a JPG, PNG, or WebP image, set custom dimensions, and download the resized file — all from your browser.
No installation
Fast processing
Browser friendly
Privacy-aware
Features
Resize image pixel dimensions (width and height) with custom precision
Maintain original aspect ratio to prevent image stretching or distortion
100% private in-browser resizing — images are processed locally via HTML5 Canvas
Supports JPG, PNG, and WebP formats up to 10,000 pixels per side
Fast client-side rendering with instant automatic image download
Free to use across all modern desktop and mobile browsers
How It Works
2
Choose available resize options
Enter your target width and height in pixels. Valid dimensions range from 1 to 10,000 pixels per side.
- Set custom width and height values
- Default preset: 800 × 600 pixels
3
Apply the resize process
Click Resize Image and wait for the browser to finish processing. Processing runs in your browser and performance depends on your device and image size.
- All processing happens in your browser — nothing is uploaded to a server
- Results depend on the image format, dimensions, browser, and device
4
Download the resized image if available
When processing succeeds, the resized image downloads automatically. You can also use the download link displayed on screen.
- The resized image downloads automatically when ready
- Output format depends on the source image: PNG images stay PNG; other formats produce JPEG output
Common Use Cases
Social Media Profiles & Banners
Resize profile pictures, cover photos, and story graphics to exact platform dimensions for Instagram, YouTube, and LinkedIn.
E-Commerce Product Catalogs
Standardize catalog product photos to uniform pixel dimensions for clean, balanced online storefronts.
Digital Presentations & Web Layouts
Scale down high-resolution camera photos to fit slide decks, email newsletters, and blog posts without excessive resolution.
Tips & Best Practices
Start with the largest image possible
For best results when reducing dimensions, start with the highest resolution image available. Reducing a large image preserves quality, while enlarging a small image can result in pixelation.
Choose the right format for your needs
JPG is useful for photographs and complex images. PNG works well for graphics with text or transparency. WebP can offer good quality at smaller file sizes for web use.
Resize results can vary
The output depends on the original image format, the dimensions you choose, your browser, and your device. Large images may take longer to process.
Image Resizer
Why resize images
Whether you need images for social media, product photos for your online store, or graphics for a presentation, the right image dimensions make everything look more professional. Resize images to fit any platform or layout in seconds.
Image resize vs image compression
Image resize changes the pixel dimensions (width and height) of an image. Image compression reduces the file size in KB or MB, often without changing pixel dimensions. If you want to make a file smaller without changing its width and height, use the Image Compressor instead.
Fast, private, and easy
- Upload a JPG, PNG, or WebP image.
- Set your target width and height in pixels (1–10,000 per side).
- Processing runs in your browser — your image never leaves your device.
- Download your resized image.
Frequently Asked Questions
How do I resize an image to specific pixel dimensions?
Upload your image, enter your desired target width and height in pixels, click Resize Image, and download the resized file immediately.
What is the difference between resizing and compressing an image?
Resizing alters the physical pixel dimensions (width and height) of the image. Compressing reduces the file size in KB or MB without changing pixel resolution.
Will enlarging an image maintain original sharpness?
Downscaling large images preserves high sharpness. Upscaling small images beyond their native resolution may introduce softness or pixelation.
Are my images uploaded to an external server?
No. Resizing is performed 100% locally in your web browser using HTML5 Canvas. Your photos never leave your device.
What image formats can I resize?
The tool supports standard JPG, PNG, and WebP image formats up to 10,000 × 10,000 pixels.