Compress PNG images

Shrink PNG files so they're faster to load and easier to email or upload — without an obvious drop in quality. Use the quality slider to find the sweet spot, then download. Everything runs in your browser, so your PNG files are never uploaded.

Drop PNG files here

or click to choose · or paste from clipboard

Processed on your device — no upload request is made.

How to compress PNG files

Add your PNG files by dragging them in or clicking the box.
Drag the quality slider until the file size and look are right — you'll see the savings live.
Download the compressed images individually or all at once.

Your screenshot won't send because it's a heavy PNG. Here's how to shrink it in seconds by compressing, converting to JPG, or resizing the resolution.

Why Are My PNG Files So Large? How to Shrink Them

PNG files balloon because the format is lossless. Learn when to keep PNG, when to switch to JPG or WebP, and how to compress PNG files fast in your browser.

Frequently asked questions

How much smaller will my PNG be?

It depends on the image, but typical savings are 40–80%. Photos and screenshots compress the most. The tool shows the exact before/after size and percentage for every file.

Does compressing reduce quality?

Lossy compression discards some detail, but at sensible quality settings it's hard to notice. Use the slider to balance size against quality — you see the result immediately.

Are my images uploaded to a server?

No. Unlike most online converters, nothing is uploaded to a server. The conversion happens entirely inside your web browser using your device's own processing, so your images never leave your computer or phone. You can even disconnect from the internet after the page loads.