Powerful image compression and optimization tool supporting multiple modern formats and advanced compression algorithms. Provides fine compression parameter control and smart resizing functionality to find perfect balance between quality and file size.
Supported Formats
Output Formats
- JPEG: Most universal lossy format for photos
- WebP: Modern format with higher compression
- AVIF: Latest generation with extreme compression and quality
- JXL (JPEG XL): Next-gen supporting lossless and lossy
- PNG (OxiPNG): Lossless PNG optimization
- Browser PNG/JPEG: Browser native compression (simplified mode)
Input Formats
Supports all common image formats: JPG, PNG, GIF, BMP, TIFF, WebP, AVIF, ICO, ICNS, etc.
Key Features
Batch Compression
Upload multiple images at once for automatic batch processing. Supports mixed input formats with unified output format.
Advanced Compression Options
Each format provides professional-grade compression parameters including quality control, encoding methods, and optimization options.
Smart Resizing
Supports resizing while compressing:
- Custom width/height with precise control
- Maintain aspect ratio
- Fit methods: contain, cover, stretch, inside, outside
- Resize algorithms: Lanczos3, Mitchell, CatmullRom
- Advanced options: Linear RGB, premultiply alpha
Use Cases
Website Optimization
- Compress webpage images for faster loading
- Convert to WebP/AVIF reducing 60-80% size
- Generate multiple sizes for responsive images
- Optimize SEO and Core Web Vitals metrics
Mobile Apps
- Reduce app installation size
- Optimize app image resources
- Generate icons at different resolutions
- Lower data consumption
Social Media
- Meet platform file size limits
- Batch process sharing images
- Optimize upload speed
- Maintain visual quality
How to Use
Basic Compression
- Upload images (supports multi-select and drag)
- Select output format (e.g., WebP)
- Click "Start Compressing Images"
- Wait for processing to complete
- Download individually or batch download
Advanced Compression
- Upload images
- Select output format
- Expand "Advanced Settings" panel
- Adjust compression parameters
- Start compression
- Compare original and compressed file sizes
Compression Recommendations
Photos
- Format: JPEG, WebP, or AVIF
- Quality: 75-85 (daily use), 85-95 (high quality)
Illustrations
- Format: PNG (lossless) or WebP (lossless mode)
- Transparency: PNG or WebP
Screenshots
- Format: PNG or WebP
- Quality: 85-100
- Preserve clear text
Important Notes
- First use may take a moment to initialize; wait for the "Loading image processing engine" message to disappear
- AVIF and JXL encoding slower; large images may take longer
- Over-compression causes visible quality loss
- Check browser compatibility for certain formats (like AVIF)
- Note browser memory limits when batch processing many images
Tool Comparison
Compared to online services (like TinyPNG, Compressor.io), this tool offers more formats, advanced options, no watermarks, and no file size limits. Compared to Photoshop, focuses on compression optimization with higher automation and more convenient batch processing.
