Bring your images.
Drop in a photo or a whole batch. Your originals stay untouched.
Compress, convert and resize · No signup needed
PNG compressor
Optimize PNG images with lossless encoding and keep transparency. Resize screenshots or convert to WebP for smaller files. Free, with no signup.
Drop your images here
Choose images from your device, then adjust the settings before processing.
Up to 20 images · 10 MB each · No signup needed✓ No watermarks✓ Originals stay yours✓ Real, measured results
Images are processed on our servers and returned to your browser. CDN sharing publishes results only when you choose it. How it works ↗
ONE TOOL. SO MANY POSSIBILITIES.
9 input formatsCompress images by format
Choose a compressor, converter or resizer for your image.
Compress JPEG ↗
Less weight for your favorite photos.
Compress PNG ↗
Crisp graphics. Clear transparency.
Compress WebP ↗
Give your website a lighter footprint.
Compress AVIF ↗
Adjust AVIF quality and dimensions.
HEIC to JPEG ↗
Your iPhone photos, ready to share.
Compress GIF ↗
Keep your animation moving.
Compress TIFF ↗
Optimize TIFF files with multiple pages.
Resize images ↗
Set maximum width and height in pixels.
THREE STEPS TO SMALLER IMAGES
How to compress images online
Choose your files, adjust settings and review the results.
Make them lighter.
Go with Smart, or find your own balance of size, format and quality.
Take a closer look.
Compare the difference. Download one image or grab the whole ZIP.
A PRACTICAL IMAGE GUIDE
Optimize PNG screenshots and transparent graphics
PNG is useful for screenshots, diagrams, logos and transparent assets. This tool uses lossless PNG encoding rather than automatically reducing your image to a small color palette.
How to compress a PNG
Choose PNG images, keep the original output format, and compress. Quality presets do not make PNG lossy. The default metadata removal can reduce non-pixel data; resizing is optional and changes pixel dimensions.
When PNG does not get much smaller
An already-optimized PNG may show little improvement or a larger output. A photographic PNG can be a candidate for JPEG if it does not need transparency. Try WebP when you need a smaller transparent image, and compare the result.
GOOD TO KNOW
About this image tool
Understand the result before choosing your download.
Will PNG transparency stay intact?
Yes, with PNG output. WebP can also keep transparency. JPEG output instead places transparent pixels on a white background.
Does a target KB value change PNG quality?
No. This tool does not lower a PNG color palette to meet a target. Try a different format or explicitly reduce its dimensions if the target cannot be reached.