About PNG to JPG
PNG and JPG were built for different jobs. PNG compresses without discarding anything, which suits a logo or a crisp interface capture but wastes space on a photograph, where every speck of texture must be recorded exactly. JPG trades a small, controlled loss of detail for a far smaller file, and it is what upload portals and older software usually expect when they ask for “an image”.
Here, each PNG is opened by the decoder already built into your browser, and a JPEG encoder inside this same page produces the new file. A quality setting from 50 to 100 (92 is preselected) controls how hard the JPG compresses, and an optional cap brings the long edge down to 4096, 2560, 1920 or 1280 px.
Where the transparency goes
JPG has no alpha channel at all. Wherever the PNG is fully see-through, the JPG gets solid white, and partly transparent pixels, like the soft rim of a cutout or a drop shadow, are mixed with that white. On a dark background a white rectangle will show around the graphic, so a logo that has to float over color should stay a PNG.
How to use PNG to JPG
- Load the PNG filesDrag PNGs onto the drop zone, choose them with the file browser, add a folder (subfolders are included), or paste a capture you just copied. A single batch holds as many as 500 images.
- Set quality and, if needed, a max sizeStart from the preselected 92. For screenshots full of small type, 95 keeps letters cleaner; for photos going out by email, 80 to 85 trims more weight. A 1920 or 1280 px long edge shrinks oversized images further.
- Save the JPGsTake each JPG from its row or gather the lot with Download all (ZIP). If you change a setting afterwards, Apply new settings reconverts the batch without re-adding files.
When people use it
Screenshots that bounce off an attachment limit
A dozen full-screen PNG captures can add up to more than a mail server will accept. Converted at around quality 90 they usually fit into one message, with the text still readable.
An application form that only says JPG
Government, school and job portals often list .jpg or .jpeg as the only accepted type for photos and scanned papers. Converting the PNG your scanning app produced gives the form the file type it checks for.
Renders and photos on a web page
Product renders, illustrations with soft gradients and photos exported as PNG slow a page down. JPG copies capped at 1920 px are often a small fraction of the original weight.
Photos shrink a lot, screenshots less, logos least
The saving depends almost entirely on what the PNG shows:
| Image content | Stored as PNG | After conversion to JPG |
|---|---|---|
| Photograph or 3D render | Heavy, since texture and noise are kept exactly | Usually a small fraction of the PNG size |
| Screenshot of an app or website | Moderate; flat panels compress well | Smaller, with possible faint smudges near text |
| Logo, icon or line art with few colors | Already compact | May be no smaller, with halos around edges |
The last row is where converting backfires: PNG stores big single-color areas so cheaply that a simple graphic can grow as a JPG and look worse too.
JPEG artifacts on text and sharp edges
JPEG compression works on small blocks of pixels and smooths out sudden jumps in color. Around dark lettering on a light background, it can leave a faint gray haze next to each character, and one-pixel lines may look a touch soft. This is the lossy part of PNG to JPG, and it is permanent: turning the JPG back into a PNG later won’t remove those marks.
For screenshots and scanned documents, 92 to 95 keeps the haze very hard to spot; small type reveals it first at lower settings.
Bit depth, animation and embedded info
- Eight bits per channel. JPG holds 8 bits for each color channel. A 16-bit PNG from a scanner or raw developer loses its extra tonal precision, which mostly matters if heavy color grading is still to come.
- Animated PNG becomes a still. An APNG is converted using its first frame only.
- Photo info is unusual in PNG. Screenshots and exported graphics normally carry no EXIF, so the Keep photo info and Remove GPS location options usually have nothing to act on.
Times to leave the PNG as it is
- The image needs a see-through background, such as a logo placed over colored slides or a website header.
- You’re still editing it. Convert once, at the very end.
- It’s a diagram, QR code or flat graphic, where PNG is often both smaller and sharper.
Collections bigger than 500 files need more than one pass, and a computer copes with heavy batches better than a phone. Any up-to-date Chrome, Edge or Firefox works, as does Safari from version 16.4. If the PNGs should become pages of a single document, PNG to PDF does that in one step. Your images are converted inside this tab and never sent to a server; here’s how to check that for yourself.