How to Convert PNG to JPG on Windows

Paint can save any PNG as a JPG with nothing installed. Here are the steps, why typing .jpg over .png in File Explorer doesn't convert anything, and a browser route for a whole folder.

Flat violet illustration of a home office at dusk: a hand on a keyboard in front of a monitor showing a colourful landscape with a blank dialog box over it, a PC tower and a mug under a glowing peach desk lamp, printed photos and a potted plant on the desk, and a window onto a city skyline, a wall clock, a bookshelf and a framed picture behind.

To convert PNG to JPG on Windows, open the PNG in Paint, choose Save as from the File menu, pick JPEG as the file type, and save. Paint is included in Windows, so there is nothing to install. To convert a whole folder at once, PNG to JPG does it in your browser without uploading the files.

How to convert PNG to JPG in Paint

Microsoft's Paint page says Paint can save "in various file formats, including PNG, JPEG, BMP, and GIF" and that you choose the format when you save. In Paint, the menu names are:

  1. Open Paint: select Start, type Paint in the search bar and press Enter.
  2. Open your PNG in Paint.
  3. Choose Save as from the File menu. Use Save as rather than Save, so the PNG is not replaced.
  4. Pick JPEG as the file type, give the file a name, and save.

Microsoft's page doesn't say what Paint does with a PNG's see-through areas, and JPG cannot store transparency, so if your PNG has a transparent background, open the JPG afterwards and check what colour it was given.

Why renaming .png to .jpg doesn't convert it

Typing .jpg over .png in File Explorer changes the name and nothing else. The data inside is still PNG, and a PNG file announces itself in its first bytes no matter what it is called. A site that reads the contents, not the name, still sees a PNG and may refuse it. Converting rewrites the image as JPEG data.

Renaming a PNG versus converting it to JPG Two file cards side by side. The left card is a file renamed from photo.png to photo.jpg: its name ends in jpg, but its first bytes are 89 50 4E 47, the PNG signature, so the contents are still PNG. The right card is a file converted to JPG: its name ends in jpg and its first bytes are FF D8 FF, the JPEG signature. photo.jpg photo.jpg first bytes of the file: first bytes of the file: 89 50 4E 47 ... FF D8 FF ... still a PNG inside real JPEG data Renamed in File Explorer Converted
The name is a label. The first bytes say what the file really is.

Why the Photos app isn't on this list

Microsoft's support page Edit photos and videos in Windows covers cropping and other photo edits, but gives no step for saving a photo in a different format. Its Save as copy instruction is for videos. Paint is the built-in app Microsoft documents for choosing a format, so use Paint. Photos is still useful for edits before you convert, as our guide to cropping an image on Windows shows.

Can a Windows screenshot be saved as JPG to begin with?

Microsoft's page Use Snipping Tool to capture screenshots says that on Windows 11 a snip is automatically saved to your Screenshots folder, and the Save as button saves an additional copy. On Windows 10, the Save Snip button opens a Save As dialog where you choose a file name, location and file type. The page doesn't list the file types offered. If JPEG isn't one, convert the saved screenshot in Paint.

How to convert many PNGs to JPG in your browser

PNG to JPG works in Edge, Chrome or another current browser. Each image is converted inside the browser tab and never uploaded.

  1. Open PNG to JPG and add your files. It accepts PNG only, up to 50 files at a time and 50MB per file.
  2. Set the JPG quality slider. It starts at 0.92 and runs from 0.4 to 1. A lower number gives a smaller file.
  3. Convert, then download. One PNG comes back as one JPG, and two or more come back in a single zip.

Nothing is resized: a 1920 x 1080 PNG we tested, with a transparent corner, came back as a 1920 x 1080 JPG, and the corner was white, because the converter paints white behind every image before saving. File names carry over with the new ending, so chart.png downloads as chart.jpg.

Should this PNG be a JPG?

A photo saved as PNG usually converts well. A screenshot of text, a logo, or anything transparent usually doesn't, because JPG blurs sharp edges and has no transparency. Our guide on when to convert PNG to JPG and when not to goes through the choice. To make a PNG smaller and keep it a PNG, use Compress PNG. To keep the transparency, use PNG to WebP instead: WebP can store it and JPG can't.

FAQ

Does Paint keep the original PNG?
Yes, if you use Save as and choose JPEG: the JPG is saved as a separate file and the PNG is left as it was. Plain Save writes back to the file you opened.

Can I convert a folder of PNGs to JPG on Windows without installing anything?
Paint does one file at a time. PNG to JPG takes up to 50 at once and returns a zip.

Will the JPG be the same size in pixels?
PNG to JPG keeps the width and height exactly. To change them, see how to resize an image on Windows.

I'm on a Mac or have an iPhone photo. Where do I go?
See converting PNG to JPG on a Mac, or for iPhone photos on a PC, converting HEIC to JPG on Windows. JPG vs PNG explains what you trade between the two formats.

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