Reduce JPG and PNG image file sizes online free. Smart compression preserves visual quality. Perfect for web, email, and social media. No signup required.
Uncompressed images slow down websites, fail email attachment limits, and eat storage. Compress JPG and PNG files to a fraction of their size with minimal visible quality change. ## How to Compress Images Free 1. Visit [pdfhub24.com/image-compressor](/image-compressor) 2. Upload your JPG or PNG (also supports WebP) 3. Choose compression level 4. Download the compressed image ## JPG vs PNG — Which Compresses Better? **JPG** uses lossy compression — it discards some image data to reduce size. JPG is ideal for photographs and complex images. Even light compression produces significant size reduction. **PNG** uses lossless compression — no data is lost. PNG is ideal for screenshots, logos, graphics with text, and images where sharp edges matter. PNG files are harder to compress aggressively without quality loss. **WebP** is the most efficient format for web use — same quality as JPG at about 25–34% smaller file size. If you're optimising images for a website and the platform supports WebP, converting to WebP produces the smallest files. ## Expected Compression Results | Image Type | Original | After Compression | |---|---|---| | Full-res phone photo (JPG) | 3–6MB | 300–800KB | | Screenshot (PNG) | 500KB | 150–300KB | | Website hero image (JPG) | 2MB | 150–400KB | | Logo (PNG) | 1MB | 100–300KB | ## When to Compress vs When to Resize **Compress** if the image is the right dimensions but just too large a file. **Resize** first using [pdfhub24.com/resize-image](/resize-image) if the image dimensions are larger than needed. A 4000×3000px image displayed at 800×600px is carrying 25x more data than necessary. Resize to the display size, then compress. Combining resize and compress produces the smallest possible files.
Common Use Cases
- Optimizing website images for faster page load times
- Reducing photo file sizes for email attachments
- Compressing images for social media uploads
- Saving storage space on cloud drives and servers
- Preparing images for mobile-optimized web content
Frequently Asked Questions
How much can images be compressed?
Typical JPG compression reduces file size by 40-80% with minimal visible quality loss. PNG optimization typically achieves 10-50% reduction while maintaining pixel-perfect quality.
Is quality noticeably reduced?
For most use cases, the compressed image is visually indistinguishable from the original. Our compression targets redundant data first, preserving the visual elements that matter most.
Which format should I use, JPG or PNG?
Use JPG for photographs and images with many colors. Use PNG for graphics, logos, screenshots, and images requiring transparency. Each format has compression advantages for its ideal content type.