Image Compressor
Reduce JPEG, PNG, or WebP image file size online — free, instant, no sign-up. Processed entirely in your browser.
Click to upload or drag & drop an image
JPEG · PNG · WebP supported · Processed in your browser
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Size Reduction
Original Size—
Compressed Size—
How to Compress an Image Online
Upload your image, adjust the quality slider, and click Compress Image. Download the compressed version instantly. Higher quality = larger file. Lower quality = smaller file. 80% quality is the sweet spot for most uses.
Recommended Quality Settings
| Use Case | Quality Setting | Typical Result |
|---|---|---|
| Website images / web upload | 70–80% | 60–70% smaller |
| Email attachments | 60–75% | 65–80% smaller |
| Social media | 75–85% | 50–65% smaller |
| Print quality | 90–100% | 10–20% smaller |
Frequently Asked Questions
How do I resize an image to 100KB?
Start with quality at 60%, compress, and check the file size. If still above 100KB, lower quality further. For very large images (5MB+), also consider reducing the dimensions using our Image Resizer first.
Can I compress a PNG without losing transparency?
When you compress a PNG using our tool and set the output format to PNG, transparency is preserved. Converting to JPEG removes transparency.