PNG files are large because they are lossless. This tool can reduce PNG size by converting to WebP (keeps transparency) or JPEG (smaller but no transparency). All processing in your browser.
PNG is used for logos, icons, and graphics with transparency. But PNG files are 3-10x larger than JPEG. Converting to WebP keeps transparency while reducing size by 50-70%.
Try It Now — Free, No Sign-up
Settings pre-configured: Quality 80%. Upload your image and process instantly.
Compress Image Now100% browser-based • No upload to server • No sign-up required
How to Compress PNG Online — Keep Transparency, Reduce Size
- Upload your PNG image(s)
- For transparency: set output to WebP (preserves alpha channel)
- For smallest size: set output to JPEG (loses transparency)
- Set quality slider (80% for WebP, any for JPEG)
- Click Compress and download
Pro Tips
- PNG → WebP: 50-70% smaller, keeps transparency
- PNG → JPEG: 80-90% smaller, loses transparency (white background)
- If you must keep PNG format, reducing dimensions is the only way to shrink it significantly
- Screenshots compress well as PNG; photos should always be JPEG or WebP
Frequently Asked Questions
Can I compress PNG without losing transparency?
Yes — convert to WebP format which supports transparency and is 50-70% smaller than PNG. Or keep PNG but reduce dimensions.
Why are PNG files so large?
PNG uses lossless compression — no quality is lost, but files are much larger. Photos should use JPEG/WebP. PNG is best for graphics, logos, and screenshots with text.
PNG vs WebP — which is better?
WebP is better in almost every way: smaller files, supports transparency, supports animation. The only downside is older browser compatibility (now 97%+ support).
Related Tools & Guides
Ready to Compress Your Image?
Free, instant, and 100% private. No sign-up needed.
Open Image Compressor