Convert PNG to JPG on your device
PNG screenshots and exported photos are often far larger than they need to be. Converting to JPG typically cuts the size by 80 to 90 percent for photographic content, which makes them easy to email, upload and store. The conversion runs locally.
Turn off your Wi-Fi. It still works.Transparent areas become white, since JPG has no transparency. For graphics with transparency keep PNG or use PNG to WebP.
Why convert PNG to JPG
- Dramatic size reduction for photos and photographic screenshots.
- Quality slider; 85 to 90 is indistinguishable for most content.
- Batch mode and a zip download.
How to convert PNG to JPG without uploading
- Drop PNG files onto the box above, or click it to pick them. On a phone you can choose straight from your photos.
- Adjust quality if you want. The default is tuned to be visually identical to the original.
- Download. Each file gets a button as it finishes; with more than one file you can download a single zip. The JPG files are written entirely on your device.
About PNG (Portable Network Graphics)
PNG is lossless and supports transparency, which makes it the right choice for screenshots, logos, diagrams and anything with sharp edges or text. For photographs it is usually several times larger than a JPG of the same picture.
PNG files of photos are large, and PNG has no way to store the camera metadata that photo formats carry.
About JPG (JPEG)
JPG is the format everything opens. It has been the default for photographs since the early 1990s, every device, browser, upload form and photo printer accepts it, and at a sensible quality setting the compression is invisible for photos.
JPG cannot store transparency, and re-saving a JPG many times slowly degrades it.
Questions
Will PNG to JPG lose quality?
Technically yes, since JPG is lossy, but at quality 85 and above the difference is invisible for photos. Text and sharp line art can show faint artefacts; keep those as PNG.
What happens to transparency?
It is flattened onto white.
Why is my PNG so big in the first place?
PNG stores every pixel losslessly. Great for graphics, wasteful for photographs.
Related tools
- JPG to PNGNo upload, batch, freeJPG→PNG
- PNG to WebPNo upload, batch, freePNG→WebP
- Compress imagesAny format, smaller filesanysmaller
- Resize imagesAny format, fit to a sizeanyresized
OfflinePix never uploads your images. Decoding and encoding run in your browser with WebAssembly; the site works with the network off, and the only thing we count is page views. How it works.