Compress Image Online - Reduce File Size Without Losing Quality
Free online image compressor. Reduce JPG, PNG, WebP, GIF, and HEIC file sizes by up to 90% while maintaining visual quality. Perfect for web optimization and faster page loading.
Compress Images Online for Free
ImageNerd's free image compressor reduces file sizes by up to 90% without visible quality loss. Perfect for optimizing images for websites, emails, and social media. Our intelligent compression algorithm maintains visual quality while significantly reducing file sizes.
Supported Image Formats
JPEG / JPG Compression
Compress JPEG and JPG photos. Ideal for photographs, maintaining quality while reducing file size for faster web loading.
PNG Compression
Compress PNG images with transparency. Perfect for logos, graphics, and images requiring lossless quality.
WebP Compression
Compress modern WebP format images. Excellent compression with superior quality for web optimization.
HEIC Compression
Compress iPhone photos (HEIC format). Automatically converts and compresses for universal compatibility.
GIF Compression
Compress animated and static GIF files. Reduce size while preserving animation quality.
Other Formats
Also supports BMP, TIFF, and more image formats for compression.
Why Compress Images?
- Faster Website Loading: Compressed images load up to 10x faster, improving user experience and SEO rankings
- Save Storage Space: Reduce cloud storage costs and save disk space on your devices
- Better Email Delivery: Compressed images are easier to send via email and less likely to be rejected for size
- Improved Mobile Experience: Smaller files mean faster loading on mobile networks and less data usage
- SEO Benefits: Google prioritizes fast-loading websites with optimized images in search rankings
- Social Media: Meet upload size requirements for Instagram, Facebook, Twitter, and other platforms
How to Compress Images
- Upload Your Image: Click to upload or drag and drop your JPEG, PNG, WebP, HEIC, GIF, BMP, or TIFF image
- Adjust Quality: Use the quality slider (0-100) to control compression. Higher = better quality, larger file. Lower = more compression, smaller file
- Preview Results: Compare original vs compressed image side-by-side to ensure quality meets your needs
- Download: Download your compressed image with significantly reduced file size
Features
Visual Quality Comparison
See before/after comparison to ensure quality meets your standards
Adjustable Quality Slider
Fine-tune compression level from 0-100 for perfect balance
Real-time File Size Display
See exact file size reduction and compression percentage instantly
No Upload Required
All processing happens in your browser - your images never leave your device
HEIC Support
Automatic HEIC to JPEG conversion and compression for iPhone photos
Completely Free
No registration, no watermarks, no limits. Free forever
Frequently Asked Questions
What quality level should I use?
For web use, quality 75-85 provides excellent visual quality with significant file size reduction. For print, use 90-95 for maximum quality.
Is image compression really free?
Yes! ImageNerd's image compressor is completely free with no limits, watermarks, or registration required.
Are my images uploaded to a server?
No. All compression happens locally in your browser. Your images never leave your device, ensuring complete privacy and security.
Can I compress multiple images at once?
Currently, you can compress one image at a time. Upload, compress, download, then repeat for additional images.
Will compressed images work for print?
For print, use quality settings above 90 to maintain high resolution. Lower quality settings are better suited for web and digital use.