Drag & Drop Your Images
or click to browse files from your device
Supports JPG, PNG, WebP, GIF, BMP (Max 50MB per file)
Original vs Resized
Upload an image to see the comparison
Professional Image Scaling & Resizing Tool
Resize images to exact dimensions while maintaining optimal quality. Perfect for web optimization, social media, mobile apps, and print materials with intelligent scaling algorithms.
or click to browse files from your device
Supports JPG, PNG, WebP, GIF, BMP (Max 50MB per file)
Upload an image to see the comparison
All image processing happens locally in your browser. Your files never leave your device, ensuring complete privacy and security for your images.
Optimized resizing algorithms provide instant results even for large images and batch processing operations.
Advanced scaling algorithms maintain image quality while reducing file sizes. Choose between speed and quality optimization.
Resize multiple images simultaneously with consistent settings. Perfect for large projects and workflow automation.
Resize images for faster website loading, better SEO performance, and improved user experience across all devices.
Perfect dimensions for Facebook, Instagram, Twitter, LinkedIn, Pinterest, and other social media platforms.
Optimize product images for online stores with consistent dimensions and fast loading thumbnails.
Resize images for brochures, flyers, business cards, banners, and other print materials with exact dimensions.
Integrate our advanced image resizing technology directly into your applications with our REST API. Perfect for developers building CMS platforms, e-commerce systems, or digital asset management solutions.
POST https://api.toolnest.com/v1/resize Headers: Content-Type: multipart/form-data Authorization: Bearer YOUR_API_KEY Parameters: - image: File to resize (required) - width: Desired width in pixels (required) - height: Desired height in pixels (required) - maintain_aspect_ratio: true|false (default: true) - quality: 10-100 (default: 85) - format: jpg|png|webp|gif|bmp (default: png) - scale_percentage: 10-200 (optional) - batch: true|false (default: false) Response: { "success": true, "original_dimensions": {"width": 1920, "height": 1080}, "resized_dimensions": {"width": 800, "height": 600}, "original_size": "2.1MB", "resized_size": "345KB", "reduction": "84%", "download_url": "https://cdn.toolnest.com/resized.png", "format": "png", "quality": 85 }
Our advanced image resizer is a professional-grade tool designed for web developers, digital marketers, photographers, e-commerce businesses, and content creators who need precise control over image dimensions and file sizes. With support for multiple image formats and intelligent scaling algorithms, our resizer enables you to optimize images for any platform or purpose while maintaining visual quality.
Image resizing is the process of changing the dimensions of a digital image while maintaining or optimizing its visual quality. Unlike cropping (which removes portions of an image), resizing scales the entire image proportionally to new dimensions. Our tool uses advanced interpolation algorithms to ensure that resized images maintain sharpness, clarity, and color accuracy across different scale factors.
Our resizer uses HTML5 Canvas API with bilinear interpolation for high-quality scaling. For JPG images, it maintains proper compression ratios. For PNG images, it preserves transparency when needed. WebP conversions use both lossy and lossless compression techniques as appropriate. All processing happens client-side using Web Workers for optimal performance, with no quality loss from server-side compression.
Our free online image resizer is trusted by thousands of professionals worldwide for its precision, speed, and quality results. Whether you're resizing a single photo for a website or processing hundreds of images for a project, our tool provides professional-grade results without the complexity of traditional image editing software.
Start resizing your images today with our advanced resizing tool - completely free, no registration required, and with the assurance that your images remain private and secure on your device.