Mass Image Optimizer
Compress, resize, and convert multiple images at once
🖼️Mass Image Optimizer
Resize Options (Optional)
Drop images here or click to select
Supports JPG, PNG, WebP, AVIF and other image formats
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What is Image Optimizer?
Compress and optimize images for web with support for JPG, PNG, WebP, and AVIF formats. Bulk process up to 50 images with quality control, resizing, and format conversion. Reduce file sizes by up to 80% without visible quality loss.
Perfect for:
- Website image optimization for faster loading
- E-commerce product photo compression
- Social media image size reduction
- Email attachment size limits
- Photo gallery optimization
- Blog and content management
- Portfolio image preparation
- Bulk image format conversion
✨ Key Features
- ✓Bulk processing: Optimize up to 50 images simultaneously
- ✓Modern formats: WebP and AVIF conversion support
- ✓Quality presets: Low, Balanced, High, and Lossless options
- ✓Smart resizing: Set max dimensions while maintaining aspect ratio
- ✓Real-time statistics: File size reduction percentage display
- ✓Format conversion: JPG ↔ PNG ↔ WebP ↔ AVIF
- ✓Privacy-focused: Immediate file deletion after processing
- ✓No registration or usage limits
Why Choose Our Free Image Optimizer?
100% Free Forever
No hidden fees, no premium tiers, no credit card required. Completely free.
Privacy First
Your data never leaves your browser. We don't track or store anything.
No Sign-up Required
Start using immediately. No registration, no email, no verification.
Free alternative to: TinyPNG, Squoosh, ImageOptim, ShortPixel, Kraken.io
How to Use Image Optimizer Online
Get started in seconds with our simple 4-step process
Step 1
Upload images by dragging and dropping or clicking the upload area (up to 50 images, 10MB each).
Step 2
Choose output format (Auto, WebP, AVIF, JPEG, or PNG) and quality level.
Step 3
Optionally set max width/height dimensions for resizing while maintaining aspect ratio.
Step 4
Click 'Optimize Images' and download files individually or as a ZIP batch.
Image Optimizer FAQ
Everything you need to know about our image optimizer
Which format is best for web: WebP or AVIF?
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AVIF offers better compression-to-quality ratio but has less browser support than WebP. WebP is the current industry standard supported by all modern browsers. Use WebP for maximum compatibility, AVIF for bleeding-edge compression.
How many images can I optimize at once?
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You can process up to 50 images per batch. For larger sets, split into multiple uploads. Each image can be up to 10MB in size.
Does optimization affect image quality?
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You control the quality. Choose 'High' (85-90) for minimal visible loss, 'Balanced' (70-80) for best size/quality mix, or 'Low' for maximum compression. 'Lossless' maintains perfect quality with moderate size reduction.
Are my images safe?
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Yes. We don't store your images permanently. Files are processed and immediately discarded from temporary memory after download. Your images are never shared or used for any purpose.
Can I convert PNG to JPG?
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Yes, select JPEG as output format. Note that PNG to JPEG conversion removes transparency (replaced with white background). For transparent images, use WebP or keep as PNG.
What is AVIF and should I use it?
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AVIF is a next-gen image format offering 50% better compression than JPEG. It's ideal for high-traffic sites where every byte matters. Browser support is growing but not universal yet—consider providing JPEG fallbacks.
Does resizing affect quality?
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Downsizing (making images smaller) generally improves perceived quality by increasing pixel density. Upsizing will cause quality loss. We recommend resizing to exact display dimensions needed, then optimizing.
Can I keep EXIF metadata?
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Currently, EXIF metadata (camera info, GPS, timestamps) is stripped during optimization to maximize file size reduction. This is standard practice for web images and improves privacy.
Understanding Image Optimizer: A Complete Guide
Image optimization is crucial for website performance, SEO rankings, and user experience. Large image files slow down page loading, increase bandwidth costs, and hurt Core Web Vitals scores. Our Image Optimizer uses modern compression algorithms to significantly reduce file sizes while maintaining visual quality.
The tool supports both lossy compression (smaller files, minimal quality loss) and lossless compression (same quality, moderate size reduction). You can convert images to next-gen formats like WebP (30% smaller than JPEG with better quality) and AVIF (50% smaller than JPEG with superior quality) for maximum optimization.
With bulk processing up to 50 images at once, quality presets from low to high, custom resizing options, and real-time compression statistics, this tool is perfect for web developers preparing image assets, photographers reducing gallery sizes, e-commerce sites optimizing product photos, and content creators preparing social media images. All processing happens server-side with immediate file deletion after download—your images are never stored permanently.
Key Benefits of Using Image Optimizer
Technical Specifications
Image Optimizer vs Competitors
vs TinyPNG
Image Optimizer Advantages
- ✓More images free
- ✓WebP/AVIF support
- ✓No account needed
- ✓Bulk processing
TinyPNG Limitations
- ✗20 image monthly limit
- ✗Pro for unlimited
- ✗No resizing
- ✗Account for bulk
Pricing Comparison
Image Optimizer: Free Forever
TinyPNG: Freemium (20 images/mo free)
vs Squoosh.app
Image Optimizer Advantages
- ✓Bulk processing
- ✓More formats
- ✓No limits
- ✓Batch download
Squoosh.app Limitations
- ✗Single image focus
- ✗No batch upload
- ✗Manual per-image
- ✗Limited bulk features
Pricing Comparison
Image Optimizer: Free Forever
Squoosh.app: Free (Google project)
vs ImageOptim (Mac app)
Image Optimizer Advantages
- ✓Cross-platform
- ✓Web-based
- ✓No install
- ✓Bulk upload
ImageOptim (Mac app) Limitations
- ✗Mac only
- ✗Not browser-based
- ✗Desktop only
- ✗No WebP/AVIF
Pricing Comparison
Image Optimizer: Free Forever
ImageOptim (Mac app): Free (Mac only)
Troubleshooting Common Issues
Issue: Optimized images look blurry or low quality
Solution: Increase the quality setting (try 80-90) or use 'Lossless' mode. Some images with fine text or sharp edges may need higher quality. Consider resizing instead of heavy compression for detail preservation.
Issue: WebP/AVIF images not displaying on my website
Solution: Safari (pre-16) and older browsers don't support AVIF. WebP has better support but still not universal. Provide fallback JPEGs using the <picture> element or feature detection.
Issue: Batch upload fails with many images
Solution: Maximum 50 images per batch. For larger libraries, split into multiple batches. Also check that no individual file exceeds 10MB. Process in chunks of 20-30 for best reliability.
Best Practices for Using Image Optimizer
Security & Privacy Features
Performance Metrics
Process up to 50 images per batch
Typical compression: 40-80% size reduction
Average processing: 1-3 seconds per image
Support for images up to 10MB each