Image Resizer - Fast, Privacy-Focused Image Processing

Image Resizer is a fast, privacy-focused web application for resizing images in bulk. Built with React, TypeScript, and Vite, it processes all images locally in your browser—no uploads, no tracking, no accounts required.

Why Use Image Resizer?

Resizing images for web use, social media, or documentation often requires uploading files to external services, raising privacy concerns and adding extra steps. Image Resizer eliminates these issues by processing everything locally in your browser, ensuring your images never leave your device while providing professional-quality results.

Key Features

• 100% Client-Side Processing: Your images never leave your device. All processing happens locally in your browser, ensuring complete privacy and security.
• Batch Processing: Resize multiple images at once with efficient batch processing and real-time progress tracking.
• Multiple Input Methods: Upload files through drag & drop, browse folders, paste from clipboard (Ctrl/Cmd + V), or fetch images from URLs.
• Format Conversion: Convert between JPEG, PNG, and WebP formats with adjustable quality settings and auto-optimization.
• Preset & Custom Dimensions: Choose from quick presets (nano, xs, small, medium, large, xl, 2xl) or set your own custom dimensions.
• Aspect Ratio Lock: Maintain original proportions or set custom aspect ratios for precise control.
• High-Quality Resizing: Uses Pica library for superior image quality with advanced resampling algorithms.
• Bulk Download: Download all processed images as a ZIP file for convenient batch operations.

How It Works

Image Resizer uses a simple four-step process:

1. Upload Images: Drag and drop files or folders, paste from clipboard, or enter image URLs to load multiple images at once.
2. Configure Settings: Choose preset dimensions or set custom sizes, select output format, adjust quality, and configure aspect ratio settings.
3. Process Images: Watch real-time progress as images are processed locally in your browser using high-quality resizing algorithms.
4. Download Results: Download individual images or all processed images as a ZIP file, then start over to process more.

User Interface & Options

The application provides an intuitive step-by-step interface where you can:

• Load images through multiple input methods (files, folders, clipboard, URLs)
• Choose from 9 preset dimensions or set custom width and height
• Select output format: JPEG, PNG, or WebP
• Adjust quality slider (1-100) or use auto-optimization
• Toggle aspect ratio lock to maintain proportions
• Track processing progress for each image
• Preview processed images before downloading
• Download all results as a single ZIP file

Preset Dimensions

Image Resizer includes carefully selected presets for common use cases:

• Nano (64px): Favicons and tiny icons
• XS (128px): Small thumbnails
• Small (256px): Profile pictures
• Medium (512px): Social media posts
• Large (1024px): Standard web images
• XL (2048px): High-resolution displays
• 2XL (4096px): Print quality
• Original: Keep original dimensions
• Custom: Set your own dimensions

Technical Details

• Built with React 18, TypeScript, and Vite for modern development
• Uses Zustand for lightweight state management
• Styled with Tailwind CSS for responsive design
• Powered by Pica library for high-quality image resizing
• JSZip for bulk download functionality
• Lucide React for modern icons
• Optimized for performance with Web Workers and WebAssembly

Privacy & Security

Image Resizer prioritizes your privacy:

• No Server Upload: All image processing occurs in your browser
• No Data Collection: No cookies, tracking, or analytics
• No User Accounts: No personal information required
• Complete Privacy: Your images never leave your device

Browser Support

Works in all modern browsers that support Canvas API, Web Workers, and WebAssembly (for optimal Pica performance). Tested in Chrome, Firefox, Safari, and Edge.

Get Started

You can start using Image Resizer immediately by visiting imageresize.prmworks.com. No installation or account required—simply open the app in your browser, upload your images, configure your settings, and download the resized results.

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Image Resizer combines powerful image processing with complete privacy. Resize and convert images effortlessly without ever uploading them to external servers!