Compress PNG Online
Reduce PNG file size directly in your browser. Everything is processed locally on your device — nothing is uploaded to any server. Free, unlimited, watermark-free.
Drop PNG files here or click to browse
Processed locally — files never leave your device
How to use
- Drop your PNG files into the box, or click it to browse.
- Optionally pick a max width — only images wider than it are scaled down.
- Processing starts instantly — right on your device.
- Hit Download to save each optimized PNG.
Frequently asked questions
Are my files uploaded to a server?
No. Compression runs entirely in your browser using standard web technology. Your files never leave your computer or phone — you can even disconnect from the internet and it still works.
Is there a file size or usage limit?
No. Since processing happens on your own device, there is nothing to meter. Compress as many files as you like, free of charge, with no watermarks.
Will compression reduce image quality?
PNG is a lossless format. Keeping the original width preserves pixels exactly — re-encoding mainly strips redundant metadata. Choosing a smaller max width resizes the image, which does reduce dimensions.
What if the result is bigger than the original?
Some PNGs are already fully optimized. If the output ends up larger, just keep your original file — it is never modified or deleted.