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In-memory processing
PNG to JPG runs as JavaScript inside this tab.
Never uploaded
Safe for financials, contracts and NDAs.
No caps or sign-ups
File size is limited only by device memory.
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Convert PNG to JPG to shrink large screenshots and photos for email, uploads and websites with size limits. JPG files are often 5 to 10 times smaller than the equivalent PNG.
Also known as PNG to JPEG.
JPG does not support transparency, so transparent areas are filled with white. If you need to keep transparency, convert to WebP instead, which supports it and is still much smaller than PNG.
Yes. PNG to JPG runs entirely inside your web browser using JavaScript, so the file never leaves your device. It is safe for confidential documents such as contracts, financial records and IDs.
There is no fixed limit, because the file is processed on your own device. Very large files depend on your device's available memory; a modern laptop or phone handles hundreds of megabytes.
Yes. ZapConvert runs in any modern browser, including Safari on iPhone and iPad and Chrome on Android, with nothing to install. You can add several files at once and download them together as a ZIP.