Image Compressor
Reduce image file sizes while maintaining quality. Perfect for web optimization and faster loading times.
Upload Images
Drag & drop images here, or click to browse
Supports JPG, PNG, WebP, HEIC, AVIF, GIF, BMP • Upload multiple images for batch compression • Max 10MB
TL;DR
Reduce image file sizes while maintaining visual quality. Upload multiple images, adjust the quality slider (10-100%), choose output format (JPEG, PNG, WebP, AVIF, GIF, BMP), and compress. See exactly how much space you save for each image and in total. Download individually or get all compressed images in a ZIP archive.
How to Compress Images
Reduce file sizes for faster loading and easier sharing.
Step-by-Step Guide
Step 1: Upload your images. Drag and drop one or more images, or click to browse. Supports JPG, PNG, WebP, HEIC, AVIF, GIF, and BMP. Add more images anytime.
Step 2: Choose output format. Select the target format. JPEG is best for photos, PNG preserves transparency, WebP and AVIF offer excellent compression ratios.
Step 3: Adjust quality. Use the quality slider (10-100%) for formats that support it (JPEG, WebP, AVIF). Lower quality means smaller files but more compression artifacts.
Step 4: Compress and download. Click "Compress" to process all images. The tool shows original size, compressed size, and percentage saved for each image. Download individually or as a ZIP.
Understanding Output Formats
Each format has specific strengths for different use cases.
JPEG (Best for photos). Lossy compression ideal for photographs. Excellent balance of file size and quality. Supports quality adjustment. No transparency support.
PNG (Supports transparency). Lossless compression that preserves all image data. Supports transparency (alpha channel). Larger files but no quality loss. No quality slider.
WebP (Modern format). Google's modern format with excellent compression. Supports both lossy and lossless modes plus transparency. 25-35% smaller than JPEG at equivalent quality.
AVIF (Best compression). Newest format with superior compression. Even smaller files than WebP at same quality. Growing browser support. Best for maximum size reduction.
GIF (Limited colors). Limited to 256 colors. Use only for simple graphics or animations. Not recommended for photos. No quality slider.
BMP (Uncompressed). Uncompressed bitmap format. No quality loss but very large files. Rarely needed—use PNG instead for lossless quality.
When to Compress Images
Smaller files benefit many scenarios.
Website performance. Compressed images load faster, improving user experience and SEO. Google considers page speed a ranking factor. Essential for e-commerce businesses optimizing product page load times.
Email attachments. Many email providers limit attachment sizes. Compress images to stay under limits and ensure delivery.
Social media uploads. Smaller files upload faster. Some platforms have file size limits that compression helps meet.
Storage management. Reduce the space taken by photo libraries. Especially useful for cloud storage with limited capacity.
Mobile data savings. Smaller images use less mobile data when sharing or downloading on cellular connections.
Quality vs File Size
Finding the right balance for your needs.
High quality (80-100%). Minimal visible compression. Files are still reduced but quality is virtually indistinguishable from original. Use for professional work.
Medium quality (50-80%). Good balance for most uses. Some compression visible on close inspection but excellent for web use and sharing.
Low quality (10-50%). Noticeable compression artifacts. Files are very small. Use only when file size is critical and quality is secondary.
70% is the sweet spot. The default 70% setting provides an excellent balance—typically 60-80% file size reduction with minimal quality loss for most images.
Frequently Asked Questions
Will compression make my images look worse?
At 70% quality or higher, most images show no visible quality difference. Lower settings will show compression artifacts. Preview your results and adjust quality as needed.
Which format compresses the most?
AVIF produces the smallest files at equivalent quality, followed by WebP, then JPEG. PNG doesn't compress as much since it's lossless. Use AVIF or WebP for maximum reduction.
Why doesn't quality adjustment work for PNG?
PNG is a lossless format—it preserves all image data without quality reduction. The file size reduction comes from efficient encoding, not quality trade-offs.
How much space can I save?
Typical savings are 50-80% depending on original format, content, and quality setting. The tool shows exact savings for each image and total savings for your batch.
Can I compress images that are already compressed?
Yes, but additional compression may have diminishing returns or introduce more artifacts. For best results, start with high-quality source images when possible.
Key Takeaways
- 1Quality slider for JPEG, WebP, and AVIF formats
- 270% quality offers excellent balance for most uses
- 3WebP and AVIF provide best compression ratios
- 4See exact file size savings for each image
- 5Batch process and download as ZIP
- 6100% browser-based—images stay private
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