Convert JPG to PNG offline, for free

How to convert JPG to PNG

1. Download nxtconvertIt’s free for macOS, Windows and Linux. Install it like any other app.
2. Add your JPG filesDrag them onto the window, or click Browse files. You can add as many as you like.
3. Choose PNGPick PNG in the format menu next to each file, or use “Set all to” for the whole batch.
4. ConvertPress Convert. Your PNG files appear in Downloads/nxtconvert, and the originals stay untouched.

JPG and PNG

JPG is the most widely supported photo format. It compresses well and opens everywhere, from phones to printers to email.

PNG is lossless and supports transparency, which makes it the usual choice for screenshots, logos and graphics with sharp edges.

In Settings you can choose the image quality (Maximum to Smallest) and whether to keep or strip metadata such as camera details and location.

Why convert on your computer?

Online converters upload your JPG files to someone else’s server, limit file sizes and often add queues or watermarks. nxtconvert does the work locally with the same engines professional tools use, so it’s private, works offline and handles large files and big batches.