How to batch convert PNG to JPG
- Click Choose a folder to add every image in a folder, or drop or choose files.
- Optional: set a name pattern, quality and background color before adding the files.
- The images are converted one after another. The bar shows the progress and the total size.
- Click Download all as ZIP when it is done.
Name patterns
The pattern decides the name of each JPG. The extension .jpg is added for you.
| Pattern | Result for screenshot.png, 3rd file |
|---|---|
| {name} | screenshot.jpg |
| product-{n} | product-003.jpg |
| {name}-{w}x{h} | screenshot-1920x1080.jpg |
| img-{n}-{name} | img-003-screenshot.jpg |
{n} is padded with zeros so the files sort in the right order. If two files end up with the same name, a number is added to the second one.
Speed and limits
Everything runs on your device, so the speed depends on your computer or phone. The images are converted one at a time to keep memory use low, which lets the browser handle large batches. On a phone, batches of 50 to 100 work best. You can add up to 200 files at once, and add more after downloading the ZIP and clicking Clear.
Where bulk conversion helps
- A folder of screenshots that must go into one email or a report.
- Product images exported as PNG from a design tool that a shop needs as JPG.
- Scans saved as PNG that take too much space.
- A website where PNG photos slow the pages down.
Check the transparent images
If some PNGs have transparent areas, they are filled with the background color you choose for the whole batch. Logos with a transparent background usually look best on white. Dark artwork may need a light gray or white background so it stays visible.
Related tools
For a few files the standard PNG to JPG converter is enough. To set a file size limit use convert PNG to JPG with options. To put a batch into one document, use multiple images to PDF, or bulk JPG to WebP if the images are for a website.