Convert PNG to JPG Online, Free and Private
Convert PNG images to JPG in your browser. Flattens transparency onto white and shrinks file size — nothing is uploaded.
Universal File Converter: Private & Fast
Convert images, videos, audio, and documents directly in your browser. Your files never leave your device, ensuring 100% privacy and security.
Image Converter
Convert images between modern formats. Ideal for thumbnails, screenshots, and photos.
100% In-Browser Processing
Your files are processed strictly in local device memory. Nothing is uploaded — see how, and check for yourself.
How to convert files with DuckConvert
Select Your File
Choose the file you want to convert from your device or drag and drop it into the converter.
Choose Output Format
Select your desired output format and any specific settings for your conversion.
Convert & Download
Click "Start Conversion" and wait for the local process to finish, then download your new file.
Don't take our word for it
This conversion runs entirely in your browser — nothing is uploaded. See exactly how, and check for yourself using your browser's DevTools Network tab.
Conversion Mechanics
PNG is great for screenshots and graphics with transparency, but its lossless compression makes files much larger than a photo really needs. Converting to JPG is the usual move when you're attaching an image to an email, uploading to a site with a strict size limit, or just want a smaller file for a shared photo. Because transparent areas get flattened onto a white background during conversion, expect a visible change if your source PNG has see-through regions — for fully opaque photos and screenshots, quality loss at reasonable JPG compression is minimal.
Why It's Private
- Runs Entirely In Your Browser: Files are decoded and re-encoded strictly in local memory.
- No Network Requests: The converter makes no calls to any server — check your browser's DevTools Network tab to confirm.
- Nothing to Sign Up For: No account, no upload, and no server-side storage of your files.
- Runs On Your Hardware: Processing uses your own device's CPU via Web Workers, not a remote server.
Step-by-Step PNG to JPG Local Guide
Select File
Drop your .png file into the box above.
Configure
Confirm JPG is selected as the output format.
Convert
Click Convert — the image is re-encoded on your device using the Canvas API.
Save Result
Download the resulting .jpg file.