Resize Image

Resize images online while maintaining aspect ratio. Scale images to custom dimensions or percentage.

Image Resize

📷
Click to upload or drag and drop
PNG, JPG, WEBP, GIF up to 10MB

About Image Resizing

Resize images to specific dimensions or percentages while maintaining quality:

  • Resize by pixels or percentage of original size
  • Maintain aspect ratio to prevent distortion
  • Quick presets for social media and web sizes
  • Choose output format and quality for optimal file size

💡 Tip: Use WebP format for best compression. Maintain aspect ratio to prevent image distortion.

What It Does

An Image Resize tool allows you to change the dimensions of images while maintaining quality and optionally preserving aspect ratio. You can resize images to specific pixel dimensions, percentages of original size, or common preset sizes. The tool supports maintaining aspect ratio to prevent distortion, or allows free-form resizing for custom dimensions. Perfect for optimizing images for web use, social media profiles, email attachments, or fitting images to specific size requirements. You can choose output format (JPG, PNG, WebP) and quality level to balance file size and visual quality. All processing happens locally in your browser, ensuring privacy and speed.

Key Features:

  • Resize to specific pixel dimensions (width and/or height)
  • Resize by percentage of original size
  • Maintain aspect ratio to prevent distortion
  • Custom width and height for free-form resizing
  • Multiple output formats: JPG, PNG, WebP
  • Quality control for optimal file size
  • Real-time preview of resized image
  • Privacy-focused - all processing in browser

How To Use

Resizing images is straightforward: upload your image, set target dimensions, and download the resized result.

1

Upload Image

Upload your image file by clicking the upload area or dragging and dropping. Supported formats include PNG, JPG, WEBP, and GIF.

2

Set Target Dimensions

Enter target width and/or height in pixels, or choose preset sizes. Enable "Maintain aspect ratio" to prevent distortion when resizing.

3

Preview Resized Image

See a preview of the resized image with new dimensions displayed. Verify the result looks correct before downloading.

4

Choose Output Format

Select output format (JPG, PNG, WebP) and quality level if applicable. JPG is good for photos, PNG for transparency, WebP for modern web optimization.

5

Download

Download the resized image in your chosen format. The image maintains quality while being optimized for your target size.

Pro Tips

  • •Maintain aspect ratio to prevent image distortion
  • •For web use, common sizes are 1920px width (full width), 1200px (content width), or 800px (mobile)
  • •Social media: Instagram posts (1080x1080), Facebook cover (1200x630), Twitter header (1500x500)
  • •Larger images may take longer to process
  • •WebP format offers best compression for web use
  • •All processing happens locally - your images never leave your device

Benefits

Web Optimization: Resize images for faster website loading
Social Media: Create images in correct sizes for different platforms
Storage Savings: Smaller images use less storage space
Email Friendly: Resize images to fit email size limits
Privacy: All processing happens in your browser
Quality Control: Maintain image quality while reducing size
Format Flexibility: Choose best format for your use case
No Software Needed: Resize images without installing applications

Use Cases

Website Optimization

Resize large images to web-appropriate sizes for faster page loads and better performance.

Resize 4000x3000px photo to 1920x1440px for website hero section, reducing file size by 75%

Social Media

Create images in correct dimensions for Instagram, Facebook, Twitter, and other social platforms.

Resize image to 1080x1080px for Instagram square post format

Email Attachments

Resize images to fit email size limits and ensure fast email delivery.

Resize 5MB photo to 800px width, reducing to 200KB for email attachment

Profile Pictures

Resize images to standard profile picture sizes for websites and applications.

Resize photo to 400x400px for user profile picture with maintained aspect ratio

Thumbnail Creation

Create thumbnail images from larger photos for galleries and previews.

Resize 2000x1500px image to 300x225px thumbnail for image gallery

Frequently Asked Questions

1 Will resizing reduce image quality?
Resizing can affect quality, especially when making images much larger (upscaling) or much smaller (downscaling). When reducing size, quality loss is usually minimal and often improves perceived quality by removing unnecessary detail. When enlarging, some quality loss may occur. The tool uses high-quality resizing algorithms to minimize quality loss. For best results, start with high-resolution images and resize down rather than up.
2 Should I maintain aspect ratio?
Yes, maintaining aspect ratio prevents image distortion (stretching or squashing). Only disable aspect ratio if you specifically need non-proportional dimensions, such as fitting an image to an exact rectangular space. For most use cases, especially photos and graphics, maintaining aspect ratio produces better results.
3 What image formats are supported?
The tool supports common image formats including PNG, JPG/JPEG, WebP, and GIF. You can upload in any of these formats and choose your preferred output format. PNG is best for images with transparency, JPG for photos, WebP for modern web optimization, and GIF for animated images.
4 What size should I resize images to for websites?
Common web image sizes depend on usage: hero images (1920px width), content images (1200px width), thumbnails (300-400px width), and mobile-optimized (800px width). Consider your target audience - if most users are on mobile, smaller sizes (800-1200px) may be sufficient. Always balance image quality with file size for optimal performance.
5 Is my image data kept private?
Yes! All image processing happens entirely in your browser using JavaScript. Your images are never uploaded to any server, transmitted over the internet, or stored anywhere. This ensures complete privacy and security. You can process sensitive images with confidence.
6 Can I resize multiple images at once?
The tool typically processes one image at a time. For batch processing multiple images, you would need to process them individually, or use a desktop application with batch processing capabilities. However, processing is fast since it happens locally in your browser.

Related Tools

Crop Image

Crop images to custom dimensions or aspect ratios. Cut and trim images precisely.

Rotate Image

Rotate images 90°, 180°, 270°, or custom angles. Flip images horizontally or vertically.

Compress Image

Compress images to reduce file size without losing quality. Optimize images for web and email.

Image to Base64

Convert images to Base64 data URLs. Embed images directly in HTML or CSS code.

Image Filters & Effects

Apply professional filters and effects: brightness, contrast, saturation, grayscale, sepia, invert, blur. Real-time preview with sliders.

Image Watermark

Add text or image watermarks to protect and brand your images. Customizable position, opacity, size, and rotation.