Image Resizer

Image Resizer

Professional image resizer with aspect ratio lock, social media presets, quality control, and format conversion. Resize to any dimensions, use quick presets for Instagram/Facebook/Twitter, and preview before download. All processing in browser for privacy.

Image Tools

Image Resizer

Click to upload an image

Supports JPG, PNG, WebP

Preview

Upload an image to get started

Preview will appear here

About & Features

Learn more about this tool and its capabilities

About Image Resizer

Resize images quickly and easily with our free online Image Resizer! Adjust dimensions, choose output formats (JPEG, PNG, WebP), control quality, and use preset sizes for social media platforms. Perfect for students, bloggers, designers, and anyone who needs to optimize images for web, social media, or printing.

Features of Image Resizer

Custom Dimensions

Resize to any width and height from 1px to 10,000px

Aspect Ratio Lock

Maintain proportions or resize freely

Social Media Presets

Quick sizes for Instagram, Facebook, Twitter, YouTube

Multiple Output Formats

Save as JPEG, PNG, or WebP

Quality Control

Adjust compression quality from 1% to 100%

Live Preview

See original and resized images side-by-side

File Size Display

See estimated file size before downloading

Browser-Based

No uploads to servers - all processing in your browser

How to Use the Image Resizer

Basic Resizing
  1. Click the upload area or drag and drop an image
  2. Enter your desired width and height (or use presets)
  3. Toggle aspect ratio lock if you want to resize freely
  4. Choose output format (JPEG, PNG, or WebP)
  5. Adjust quality slider for JPEG/WebP formats
  6. Click "Resize Image" to process
  7. Preview the result and download when satisfied
Using Presets
  • • Click any social media preset for instant sizing
  • • Presets automatically unlock aspect ratio for exact dimensions
  • • Mix presets with custom adjustments as needed
  • • Create multiple versions for different platforms

Social Media Image Sizes

📸 Instagram
  • • Square Post: 1080 × 1080 px
  • • Portrait Post: 1080 × 1350 px
  • • Landscape Post: 1080 × 566 px
  • • Story: 1080 × 1920 px
📘 Facebook
  • • Cover Photo: 820 × 312 px
  • • Post Image: 1200 × 630 px
  • • Profile Picture: 170 × 170 px
  • • Event Cover: 1920 × 1080 px
🐦 Twitter/X
  • • Header Photo: 1500 × 500 px
  • • In-stream Photo: 1600 × 900 px
  • • Profile Picture: 400 × 400 px
🎥 YouTube
  • • Thumbnail: 1280 × 720 px
  • • Channel Art: 2560 × 1440 px
  • • Profile Picture: 800 × 800 px

Image Format Comparison

JPEG

Best for: Photos, realistic images

  • ✓ Excellent compression
  • ✓ Widely supported
  • ✓ Adjustable quality
  • ✗ No transparency
  • ✗ Lossy compression
PNG

Best for: Graphics, logos, transparency

  • ✓ Lossless quality
  • ✓ Transparency support
  • ✓ Sharp text/graphics
  • ✗ Larger file sizes
  • ✗ Not ideal for photos
WebP

Best for: Web, modern browsers

  • ✓ Best compression
  • ✓ Transparency support
  • ✓ Smaller than JPEG/PNG
  • ✗ Limited older browser support
  • ✓ Google's modern format

Resizing Best Practices

Keep Original Aspect Ratio:Avoid distorted images by maintaining proportions when possible
Don't Upscale Too Much:Enlarging beyond 150% of original causes quality loss and pixelation
Balance Quality and File Size:For web: 80-90% quality is usually sufficient, saves bandwidth
Use WebP for Web:Modern websites benefit from WebP's superior compression
Keep Backups:Always save your original high-resolution images

Frequently Asked Questions

📱 Perfect for Students & Content Creators

Our Image Resizer is ideal for:

  • • Student projects - Resize images for presentations, reports, and assignments
  • • Social media managers - Optimize images for Instagram, Facebook, Twitter posts
  • • Bloggers & writers - Reduce file sizes for faster website loading
  • • Online sellers - Create product images that meet marketplace requirements
  • • Email attachments - Shrink images to fit email size limits
  • • Profile pictures - Get exact dimensions for various platforms

How to Use

Step-by-step guide to get the most out of this tool

Frequently Asked Questions

Common questions and answers about this tool

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