PNG Compressor
Compress PNG graphics — saves as WebP for strong size reduction (transparency kept in lossless-friendly settings).
Drop a PNG file
Output: WebP · compressed in your browser
No server upload — processed on your device
Computer · URL · Box · Dropbox · Google Drive · OneDrive · drag & drop
PNG pixels are re-encoded to WebP for smaller downloads. Use JPG Compressor if you need a JPEG.
How to use this tool
Add a PNG file
This page accepts PNG. Max 100 MB — processing stays in your browser.
Tune compression
Use the quality slider to balance size against fidelity.
Download WebP
Save the compressed WebP locally when you are happy with the size.
Frequently Asked Questions
More on quality loss: conversion quality guides · compression guides
Is the png compressor free?
Yes. Format Convertly compresses files in your browser with no signup.
Do you upload my files?
No. Encoding stays on your device.
What does PNG Compressor output?
Output is WebP — PNG pixels are re-encoded to WebP for smaller downloads. Use JPG Compressor if you need a JPEG.
Need a different format?
Open the PNG format hub for converters, comparisons, and related tools.
Does compressing or converting images reduce quality?
Lossy compression can. Use higher quality settings when fidelity matters, and keep an original master. Lossless workflows preserve pixels.
Can you recover quality after compressing?
Not from the compressed file alone. Keep the original upload/export and recompress from that master if you need a better result.
What is generational loss?
Quality damage from repeatedly re-encoding lossy images. Avoid save→compress→save loops; work from a master.
How does image compression work?
Tools decode pixels and re-encode (JPG/WebP and similar). See How image compression works and How to reduce image size without losing quality.
Lossy or lossless for my photo?
Photos usually use lossy JPG/WebP for web size; UI and screenshots prefer lossless PNG. Read Lossy vs lossless compression.
Where can I learn more about compression?
Browse Format Convertly’s Compression guides — what compression is, lossy vs lossless, image/video/audio how-tos, bitrate, and PDF size tips — each links back to the matching compressor.
Ready to convert more formats?
Browse converters or jump back to the tool above.