How do I convert an image to JPG for free?

On Windows, open the image in Paint and use File > Save as > JPEG picture. On a Mac, open it in Preview and use File > Export with the format set to JPEG. Or drop the file into a free online JPG converter and download the result. All three cost nothing.

How do I change an image to JPG without Paint or Preview?

Use an online converter. Upload the file, wait a second, and download the JPG. This works from a phone, a Chromebook, or any computer where you can't install software, and it handles formats Paint and Preview can't.

What image formats can be converted to JPG?

Almost all of them. PNG, HEIC, WebP, GIF, TIFF, BMP, AVIF, SVG, PSD, and camera RAW files like CR2 and NEF can all become JPG. PDFs can be turned into JPG images too, one page at a time.

Will converting to JPG lower the quality of my picture?

A little. JPG uses lossy compression, so each save throws away some detail to shrink the file. For photos the loss is usually invisible at normal quality. For logos, screenshots, or line art with sharp edges, PNG often looks cleaner.

How do I change a photo from JPEG to JPG?

You don't need to convert anything. JPEG and JPG are the same format with two spellings of the extension. If a site demands .jpg specifically, just rename the file's extension, or run it through a converter that outputs .jpg.

How to Convert Any Image to JPG

JPG is the format nearly every website, form, and printer accepts, which is why "convert to JPG" is one of the most common things people need to do with an image. The short version: on Windows use Paint's Save as menu, on a Mac use Preview's Export, and for anything trickier drop the file into a free online converter. Below is how to convert an image to JPG no matter what you're starting from.

"Image to JPG" is really a bundle of smaller jobs, because an image can arrive in a dozen different formats. A screenshot might be a PNG. A photo from an iPhone is probably HEIC. A picture you saved off a website could be WebP or AVIF. A file from a camera might be a RAW file with an extension like CR2 or NEF. The method is similar for all of them, but a few formats need a converter that actually understands them.

Convert an image to JPG on Windows (Paint)

Paint ships free with every copy of Windows and handles the common formats without any extra download.

Right-click your image file and choose Open with > Paint.
Click File in the top-left corner.
Choose Save as, then pick JPEG picture.
Give the file a name, pick a folder, and click Save.

That's it. Paint reads PNG, BMP, GIF, TIFF, and WebP (on Windows 11), and writes a clean JPG. If Paint refuses to open your file, it's usually a HEIC photo or a camera RAW file, and you'll want the online converter further down.

The Windows Photos app can do the same thing. Open the image, click the three-dot menu, choose Save as, and select JPG as the file type.

Convert an image to JPG on a Mac (Preview)

Preview is the built-in image viewer on every Mac, and it exports JPG in a few clicks.

Double-click your image so it opens in Preview. If it opens in something else, right-click and choose Open With > Preview.
Go to File > Export in the menu bar.
In the pop-up, set Format to JPEG.
Drag the Quality slider (higher keeps more detail and makes a bigger file), then click Save.

Preview opens more formats than Paint does, including HEIC and many RAW files, so on a Mac this one method covers most of what you'll throw at it. To convert a batch at once, select several images in Finder, right-click, and choose Quick Actions > Convert Image, then pick JPEG.

The fastest way: an online JPG converter

Manual tools are great until you hit a format they don't support, or you're on a phone or a work laptop where you can't install anything. That's where a browser converter wins. The online JPG converter takes almost any image format, PNG, HEIC, WebP, GIF, TIFF, BMP, AVIF, SVG, PSD, and camera RAW included, and turns it into a JPG in seconds. You upload the file, it converts in your browser, and you download the result. Nothing gets installed and the work happens on your device.

Use it when Paint or Preview chokes on a file, when you have several images to do quickly, or when you just want the simplest path from whatever you have to a plain .jpg.

Format-specific guides for the common cases

Some source formats come with their own quirks worth knowing, so we wrote dedicated guides for the ones people ask about most:

iPhone photos: these are HEIC by default, which Windows and older software often can't open. See how to convert HEIC to JPG, or send the file straight through the HEIC to JPG converter.
PNG screenshots and graphics: PNG files are lossless and often large. How to convert PNG to JPG covers when that trade is worth it, and the PNG to JPG tool does it in one click.
WebP images from the web: websites serve WebP to save bandwidth, but a lot of apps still can't read it. How to convert WebP to JPG walks through it, and the WebP to JPG converter handles the file directly.
Camera RAW files: big, unprocessed, and not shareable as-is. How to convert RAW photos to JPG explains what you gain and give up, and the RAW to JPG tool turns CR2, NEF, ARW, and DNG into JPG fast.

A note on quality

JPG is a lossy format. Every time it saves, it drops a bit of detail to keep the file small, and photos generally survive this beautifully. Where JPG struggles is sharp-edged content: logos, text, screenshots, and line art can pick up fuzzy halos around the edges. If your image is that kind of graphic and it needs to stay crisp, keep a PNG copy alongside your JPG. For everything else, a good-quality JPG is the format that just works everywhere you need to send it.