How to Resize Images Online Free
Our Image Resizer & Compressor allows you to resize and optimize images for web, social media, and print use. Upload single images or process multiple files in batch with advanced compression and quality settings. Support for popular formats including JPEG, PNG, and modern WebP with intelligent aspect ratio handling.
Advanced Image Processing Features
Multiple Resize Modes
Choose from Fit (maintain aspect ratio with padding), Crop (fill dimensions exactly), Fill (scale to fill), or Stretch modes to achieve your desired output format.
Smart Compression
Intelligent quality control with preset options from Maximum to Minimum. Real-time compression statistics show file size reduction and optimization results.
Batch Processing
Process multiple images simultaneously with individual settings per image. Progress tracking and error handling for large batch operations.
Format Conversion
Convert between JPEG, PNG, and WebP formats while resizing. Automatic quality optimization for each format with transparency support.
Preset Sizes for Every Platform
Quick-access presets for popular social media platforms and web standards. Instagram (square, portrait, landscape), Facebook covers, Twitter headers, LinkedIn banners, YouTube thumbnails, and standard HD resolutions. Aspect ratio presets for common formats including 16:9, 4:3, 1:1, and portrait orientations.
Why Choose Our Image Resizer?
- 100% Browser-Based Processing: All image processing happens locally using Canvas API for complete privacy
- No File Size Limits: Process images up to 50MB with efficient memory management and optimization
- Batch Operations: Handle up to 20 images simultaneously with progress tracking and error recovery
- Real-time Preview: Compare original and processed images side-by-side with detailed statistics
- Smart Aspect Ratios: Automatic dimension calculation with common ratio presets and manual override
- Processing History: Track recent operations and reuse successful settings for consistent results
Frequently Asked Questions
What image formats are supported?
Input: JPEG, PNG, GIF, WebP, BMP. Output: JPEG, PNG, WebP. The tool automatically handles format conversion and quality optimization for each format type.
How large can my images be?
Individual images can be up to 50MB. For batch processing, you can upload up to 20 images at once. Large images are processed efficiently using optimized Canvas operations.
Are my images secure and private?
Yes! All image processing happens entirely in your browser using the HTML5 Canvas API. No images are ever uploaded to servers, ensuring complete privacy and security.
What's the difference between resize modes?
Fit: scales to fit within dimensions (may have padding). Crop: fills dimensions exactly (may crop edges). Fill: scales to fill while maintaining ratio. Stretch: forces exact dimensions (may distort).
Can I maintain image quality while reducing size?
Yes, use high quality settings (90-100%) with dimension reduction, or try WebP format which offers better compression than JPEG while maintaining visual quality. PNG is lossless but larger.
How does batch processing work?
Upload multiple images, set global or per-image settings, then process all at once. Progress tracking shows real-time status, and you can download all results or individual files.