How to Use the Image Compressor
A simple guide to compress your images while maintaining quality
Getting Started
Step 1: Upload Your Image
Click on the upload area or drag and drop your image file. The compressor supports JPEG/JPG and PNG files up to 20MB.
Click or drag and drop your image here
Step 2: Compression Options
For PNG files, you can choose to convert to JPEG before compression for better results with photographic images.
This option appears only when you upload a PNG file
Step 3: Compress
Click the "Compress Image" button and wait for the process to complete. The application will automatically select the best compression method based on your image type.
The application will automatically analyze and optimize your image
Step 4: Download
After compression, you can download your optimized image, copy its URL, or use the "Save As" option if the download button doesn't work.
Save your optimized image with significantly reduced file size
Key Features
Before/After Comparison
Use the interactive slider to compare your original and compressed images side by side. This helps you verify the quality is maintained while seeing the file size reduction.
Drag the slider left and right to compare the original and compressed versions
Smart Format Detection
The compressor automatically detects your image type (photographic, line art, graphical) and applies the most appropriate compression technique.
Photographs
Optimized for natural images
Line Art
Preserves sharp edges
Graphics
Maintains color accuracy
Format Conversion
Convert PNG to JPEG for better compression with photographic images. This option is especially useful for PNG photos that don't need transparency.
Note: Converting PNG to JPEG will remove any transparency in the image.
Tips & Best Practices
Choose the Right Format
Use JPEG for photographs and PNG for graphics with transparency or sharp edges. Convert PNG to JPEG for photos that don't need transparency.
Check the Comparison
Always use the comparison slider to verify the compressed image maintains acceptable quality before downloading.
Batch Processing
For multiple images, process them one by one and download each before uploading the next for best results.
Resize Before Uploading
If you need a specific size, resize your image before compression for better results rather than after compression.
Common Questions
Is my data secure?
Yes, all processing happens in your browser. Your images are never uploaded to any server, ensuring complete privacy and security.
Why isn't my image compressing much?
Some images may already be well-optimized or use formats that don't compress further without quality loss. Try the PNG to JPEG conversion option for photographic images if maximum compression is needed.
What's the difference between the compression methods?
The application uses different techniques based on your image:
- Standard compression for smaller images
- Advanced compression for larger files
- Specialized algorithms for line art, photos, and graphics
- Format conversion when beneficial
The download button isn't working. What should I do?
If the download button doesn't work, use the "Right-click and Save As" option that appears after compression. This alternative method works in all browsers.
Troubleshooting
Image Fails to Upload
If your image fails to upload, check:
- The file is under 20MB
- The format is JPEG/JPG or PNG
- The file isn't corrupted
- Try refreshing the page and uploading again
Compression Takes Too Long
For very large images, compression may take longer. If it seems stuck:
- Wait at least 1-2 minutes for large files
- Check your internet connection
- Try refreshing and using the standard compression option
- Consider resizing very large images before uploading
Quality Issues After Compression
If you notice quality issues in the compressed image:
- Use the comparison slider to check specific areas
- Try again without the PNG to JPEG conversion option
- Some images with fine details may require less compression
- Consider using the "Start Over" button and trying again