How to convert PNG to JPG

PNG is the go-to format for graphics, screenshots and anything that needs transparency or lossless storage, but it produces large files for photographs. Converting to JPG shrinks the file dramatically while keeping it visually close to the original, making it easier to share, upload and email. This guide explains what the conversion does, how to handle transparency, and what it won't do — all using a tool that runs entirely in your browser.

Convert PNG to JPG online

The PNG to JPG converter re-encodes your PNG image as a JPG file using the quality level you choose. Because JPG uses lossy compression, the converted file is typically much smaller than the original PNG, especially for photographs and complex images. The original dimensions are preserved by default, with an optional resize if you need different output dimensions.

The most important thing to understand is what happens to transparency. PNG supports an alpha channel for transparent or semi-transparent pixels, but JPG does not — every pixel in a JPG is fully opaque. When you convert a transparent PNG, the tool flattens the transparent areas onto a background colour you choose (white by default). It does not silently replace transparency with black or leave holes in the image.

How to convert PNG to JPG

1. Upload your PNG image.
2. Choose JPG quality (High, Medium, Low or a custom value from 1 to 100).
3. Choose a background colour if the PNG contains transparency.
4. Optionally resize the image.
5. Click Convert to JPG.
6. Download your JPG.

You can convert multiple PNG files at once. The tool checks your remaining usage before processing, so if you upload more images than your allowance covers, it will tell you how many you can convert and offer an upgrade if you need more. Results can be downloaded individually or as a ZIP file.

Why convert PNG to JPG?

• Smaller file sizes for photographs. PNG's lossless compression produces large files for photos. JPG's lossy compression can shrink the same image to a fraction of the size with little visible difference.
• Wider compatibility. Almost every app, device, browser and platform supports JPG. Some older systems and upload forms only accept JPG.
• Website uploads. Content management systems, form uploads and web builders often prefer or require JPG for photos because it keeps page weight down.
• Email attachments. Smaller files are easier to email without hitting attachment size limits.
• Social media. Most social platforms re-encode images on upload; starting with a sensibly-sized JPG gives you more control over the result.
• Sharing images. A smaller JPG is quicker to send over messaging apps and easier for recipients to open on any device.
• Systems that require JPG. Some workflows — ID photo uploads, visa applications, stock photo submissions — explicitly require JPG files.

After converting, you can compress the JPG to reduce its file size further, or use the JPG to PNG converter if you ever need to go the other way.

PNG vs JPG

PNG

• Lossless — preserves every pixel exactly, so re-saving doesn't degrade quality.
• Supports transparency via an alpha channel, making it ideal for logos, icons and graphics with transparent backgrounds.
• Often larger for photographs, because lossless compression can't match JPG's aggressive size reduction on complex, colourful images.

JPG

• Lossy compression — discards visual detail that the eye is less likely to notice, producing much smaller files.
• Does not support transparency — every pixel is fully opaque, so transparent PNGs must be flattened onto a background colour during conversion.
• Usually smaller for photographs, often dramatically so.
• Widely supported by virtually every app, device, browser and platform.

Converting PNG to JPG is a one-way lossy step: once the file is a JPG, detail discarded by the compression cannot be recovered. Use a high quality (90% or above) if you want the result to stay visually close to the original PNG. If you need transparency or lossless storage, keep the PNG.