Convert PNG to JPG

PNG files can be heavy. Saving them as JPG often makes photos and screenshots several times lighter, ready for email and forms.

Sealed on this device

Runs in your browser. Nothing is uploaded.

Sealed

Your images

Convert to

How it works

  1. Add your PNG files

    Drop one PNG or a whole batch, choose them, or paste a screenshot straight from your clipboard.

  2. Pick quality and background

    JPG has no transparency, so choose the color that fills see-through areas (white by default). Set the quality to balance size and sharpness.

  3. Download the JPGs

    See how much lighter each file got, compare before and after, then download them one by one or in a zip file.

Frequently asked questions

Why convert a PNG to JPG?

PNG keeps every pixel exactly, which makes photos stored as PNG very large. JPG is designed for photos: at a good quality setting the file is usually several times smaller and looks the same. Many forms and websites also accept only JPG.

What happens to the transparent background?

JPG can’t store transparency. Transparent and semi-transparent areas are blended onto the background color you choose, white by default, so edges stay smooth.

Should I convert logos and screenshots to JPG?

Usually not. Text, flat colors and sharp edges can show small smudges in JPG. For those, keep PNG or convert to WebP, which is both small and sharp. JPG is best for photos.

Are my files uploaded?

No. The conversion runs inside your browser with MozJPEG compiled to WebAssembly, so your images stay on your device.

Can I convert many PNG files at once?

Yes. Add as many as you like: they are converted side by side on your device, and you can download them all together in a zip file.

Install One For All on your computer

One For All then opens in its own window, like an app, straight from your desktop or home screen. Nothing to download from a store, and your files still stay on your device.

  1. Click the install icon at the right of the address bar, or open the browser menu (⋮).
  2. Choose “Install One For All” or “Install page as app”: a shortcut is added to your desktop and your apps.

Download this tool’s engine?

This tool works entirely in your browser. To do that, it needs to download the items below from One For All, just once. They are then kept on this device, so next time the tool starts right away.

Your files are never sent anywhere.