Image Compressor
Reduce image file sizes to improve website loading speed.
Upload Image
Select or drag and drop an image to compress
Select an image
or drag and drop a file here
Compression Settings
Choose your compression quality
Usage Guide & Features
How to Use
- Upload an image file or drag and drop it
- Choose compression quality (lower = more compression)
- Click the Compress Image button
- Check the results and download
Key Features
- • Browser-based processing (privacy safe)
- • Real-time compression ratio calculation and display
- • Various quality options available
- • Compare original vs compressed images
- • JPEG optimization algorithm
When to Use
- • Website image optimization
- • Reduce email attachment sizes
- • Prepare for social media uploads
- • Save storage space
Frequently Asked Questions (FAQ)
Q: How much can file sizes be reduced?
Depending on the image and settings, 50-80% size reduction is typically possible. At 80% quality, you can achieve 50%+ compression with virtually no visible difference.
Q: Are PNG files also compressed?
PNG files are converted to JPEG format for compression. PNG images with transparent backgrounds will be converted to white backgrounds. Use a separate tool for PNG lossless compression.
Q: How much does image quality degrade?
At 80% quality or higher, quality degradation is barely noticeable for general use. 70-80% is suitable for web publishing, while 90%+ is recommended for printing.
Q: Are images sent to a server?
No. All compression work is performed directly in your browser, so images are never uploaded to our servers. Privacy and security are completely guaranteed.
Q: Can large images be processed?
Processing is limited by browser memory, so we generally recommend images under 20MB. Larger images may take longer to process or slow down your browser.
Q: How should I choose quality settings?
• For websites: 70-80% (balance of loading speed and quality)
• Social media: 60-70% (platforms re-compress anyway)
• Email attachments: 50-60% (consider size limits)
• Thumbnails: 40-50% (quality differences less noticeable at small sizes)