Reduce image file size or meet upload requirements. Every conversion runs locally on your Mac — your PNG files are never uploaded.
macOS 14 or later · Apple silicon · Free to try
PNG is a lossless image format that supports transparent backgrounds. JPG is the universally supported, compressed photo format. Reduce image file size or meet upload requirements.
PrivateRemix handles the PNG-to-JPG conversion in a couple of clicks, with the result saved right next to your original file.
Unlike free online converters, PrivateRemix has no server. Your PNG files stay on your Mac — no upload, no cloud, no account.
Drag a PNG file into PrivateRemix, or pick one from your Mac.
Select JPG from the formats PrivateRemix offers for your file.
The new JPG appears next to the original. Nothing leaves your Mac.
JPG is a compressed format, so there is a small, usually imperceptible quality trade-off in exchange for a much smaller file. PrivateRemix converts at a high quality setting to keep it minimal.
Yes. PNG stores a full alpha channel, so transparent backgrounds are preserved. Formats like JPG do not support transparency and will fill it with a solid colour.
Yes. JPG is the most widely supported photo format and compresses photographs efficiently. It is a lossy format, so it is best for final images rather than repeated re-editing.
No. PrivateRemix runs entirely on your Mac using its own processor. Your PNG files never leave the device — there is no server to upload to, and it works fully offline.
Yes. Drop in a batch of PNG files and PrivateRemix converts them all locally, saving each new JPG next to its original.
Free to try. macOS 14 or later, Apple silicon.