How to Convert PNG to JPG/JPEG on Windows Without Internet

PNG is a great image format when you need transparency or high-quality graphics, but sometimes you simply need to save your pictures as JPG/JPEG, especially when uploading to websites, sharing on social media, or reducing file sizes. While many users rely on online converters, you don’t need the internet at all—Windows includes several built-in tools that let you convert PNG files to JPG/JPEG instantly.

If you’re here reading this guide, you’re probably looking for a fast and offline method to convert PNG images to JPG/JPEG on your Windows 10 or Windows 11 PC. The good news? You can do it easily using built-in apps like Paint, Photos, and Photos Legacy, or even batch-convert multiple files using desktop tools.

In this step-by-step guide, we’ll show you three easy ways to convert PNG to JPG/JPEG on Windows without using the internet.

Convert PNG to JPG Using Paint

Paint is available on every Windows PC and offers a quick way to convert images without installing anything.

1. Open the PNG File in Paint

1. Right-click your PNG image.
2. Select Open with → Paint.

Paint will load your image instantly.

2. Save the Image as JPG/JPEG

1. Click File in the top-left corner.
2. Select: Save as → JPEG picture
3. Choose a name and location.
4. Click Save.

Your PNG is now converted to a JPEG image.

Convert PNG to JPG Using the Photos App

If you prefer using the built-in Photos app, converting images there is just as easy.

1. Open the Image in Photos

1. Double-click your PNG file.
2. It should open automatically in Windows Photos.

If it opens somewhere else, right-click → Open with → Photos.

2. Save a Copy as JPG

1. Press Ctrl + S, or click the three dots (⋯) → Save as.
2. In the Save as type dropdown, choose: .jpg
3. Click Save.

Photos saves a new JPG version without changing the original PNG.

Batch Convert PNG to JPG Using Paint or Photos Legacy

If you have multiple PNGs to convert, doing them one by one can be slow. Windows includes another app—Photos Legacy—that works well for batch conversion, and you can also use Paint via simple copy-paste steps.

Batch Convert Using Photos Legacy

Photos Legacy offers an “Edit → Save as” pipeline that works quickly for multiple images.

1. Install Photos Legacy (If Needed)

1. Open Microsoft Store.
2. Search Photos Legacy and install it.

2. Open and Convert

1. Select all PNG images in File Explorer.
2. Right-click → Open with → Photos Legacy.
3. Press Ctrl + S and choose: Save as type → JPEG
4. Save each image in sequence.

This is ideal for small batches.

Batch Convert Using Paint (Semi-Automated)

If you prefer Paint, use this workflow:

1. Drag-and-Drop

1. Open Paint.
2. Drag your PNG image into it.

2. Save as JPEG

1. Press F12 → opens the Save As dialog.
2. Select: JPEG picture
3. Press Enter.

Repeat for each file—this is still much faster than manually browsing folders.

Wrapping Up

And that wraps up our guide on 3 Ways to Convert PNG to JPG/JPEG on Windows Without Internet. Whether you choose Paint, Photos, or Photos Legacy, converting images is quick, straightforward, and completely offline.