Convert PNG to JPG
Turn a PNG into a JPG for a form, an email or a site that will not take PNG. Transparent areas become white, all in your browser.
How to convert PNG to JPG
- Drop a PNG on the box above, or up to 20 of them at once.
- Convert to already shows JPEG, with the quality at 80%. Move the slider up for a larger, cleaner file.
- Press Convert image and compare the new file size with the original.
- Download the JPG. Several files come together in one ZIP.
When I convert a PNG to JPG, and when I do not
PNG keeps every pixel exactly, which is why screenshots and logos are saved that way. JPEG drops detail you are unlikely to notice in a photograph and makes the file far smaller. So a photo that ended up as a PNG, from a screenshot, an editor export or an app, is the one worth converting.
My photos are published as JPEG, so to test this I first saved Lake Jasna and the two Metelkova frames as lossless PNG files with this converter at 100%. Then I converted each back to JPG on this page in Chromium, at the starting setting of 80%. I added three PNG test files: a screenshot of a web dashboard, a logo on a transparent background and a tiny 16-colour icon.
PNG and JPG sizes compared
| Image | PNG | JPG at 80% |
|---|---|---|
| Lake Jasna, June 2019 | 960 × 1200 px, 1.5 MB | 175.8 KB, 88.4% smaller |
| Clay figure, Metelkova, March 2023 | 1200 × 800 px, 1.2 MB | 150.3 KB, 87.8% smaller |
| Red bicycle, Metelkova, March 2023 | 1200 × 800 px, 1.9 MB | 280.6 KB, 85.8% smaller |
| Screenshot test file | 2200 × 1400 px, 466.7 KB | 134.3 KB, 71.2% smaller |
| Logo with transparency | 640 × 320 px, 31.5 KB | 11.5 KB, 63.4% smaller |
| 16-colour icon | 96 × 96 px, 853 B | 4.5 KB, 440.8% larger |
The photos shrank seven to nine times, and every JPG kept the PNG's pixel dimensions. The icon went the other way: a PNG with sixteen colours is already tiny, and its JPG was more than five times larger. The converter tells you when that happens; keep the PNG then.
Transparency turns white
JPEG has no transparency, so the converter paints a white background under the image before it saves. On my test logo every fully transparent pixel came out pure white. The orange triangle, drawn at 60% opacity, became a solid light orange where it had been see-through, and the soft shadow under the circle turned into a pale grey haze on white.
That looks right on a white page or form. On a dark website or a coloured slide you will see a white box around the logo. For those, keep the PNG, or choose WebP in the same menu, which keeps transparency at a smaller size.
Which quality to choose
For photos I leave it at 80%. I tried the bicycle at other settings: at 90% it was 485.9 KB, at 100% 920.6 KB and at 60% 157.7 KB. Even at 100% the JPG was less than half the PNG's 1.9 MB, but it was nearly twice the 90% file for a difference that is very hard to see.
Screenshots behave differently. My screenshot test file at 100% came out at 629.2 KB, larger than the 466.7 KB PNG, because sharp text and flat colour are exactly what PNG stores well. At 90% it was 222.5 KB. If text must stay crisp, check the edges of the letters before you send the JPG.
Tips for converting PNG to JPG
- Convert photos, not small icons or flat graphics; a PNG with few colours can grow as a JPG.
- If the PNG has a transparent background and will sit on a coloured page, keep it as PNG or convert it to WebP instead.
- Convert once, from the original PNG. Every further JPEG save loses a little more.
- If the JPG also has to fit a size limit, skip this step: the Image Compressor saves a PNG without transparency as JPEG at the size you choose.
- Renaming a .png file to .jpg does not convert it. The data inside stays PNG, and some upload forms check it.
Privacy
Your image never leaves your device. Conversion happens entirely in your browser, so nothing is uploaded or stored, and you do not need an account. Support for HEIC files is included on this site and also runs in your browser.
Frequently asked questions
Does converting PNG to JPG reduce quality?
Slightly, because JPEG stores a close copy of the picture rather than an exact one. At 80% the differences in my photos are hard to see at normal viewing size. Sharp text and flat graphics suffer more; use 90% or keep the PNG for those.
Does converting PNG to JPG reduce file size?
For photos, by a lot. My three photos saved as PNG went from 1.2 to 1.9 MB down to between 150.3 and 280.6 KB as JPG at 80%. A tiny icon with few colours did the opposite and grew from 853 bytes to 4.5 KB.
What happens to a transparent background when I convert PNG to JPG?
It turns white, because JPEG cannot store transparency. Partly transparent areas are blended with white, so a soft shadow becomes light grey. If the background has to stay see-through, keep the PNG or convert it to WebP.
Does renaming a PNG to JPG work?
No. The file name changes, but the image inside is still a PNG. Some apps open it anyway, while upload forms that check the file may refuse it. Converting it here writes real JPEG data with a .jpg name.
Is PNG better than JPG?
For screenshots, logos and anything with transparency, yes. For photos JPG is usually the better choice: my photos as PNG were seven to nine times larger than as JPG at 80%, for a difference that is hard to see.
Related tools and guides
- Image Converter: Convert JPEG, PNG, WebP and HEIC images directly in your browser.
- Convert AVIF to JPG: Turn an AVIF image saved from a website into a JPG that apps, editors and upload forms open. It gets bigger, and here is by how much. No upload.
- Convert HEIC to JPG: Turn iPhone HEIC photos into JPG files that every app, form and computer opens, and see what happens to size, rotation and photo details. No upload.
- Convert JPG to PNG: Turn a JPG into a PNG for an editor, a print shop or a form that asks for PNG. Expect a bigger file and no transparent background, all in your browser.
- Convert WebP to JPG: Turn a WebP saved from a website into a JPG that apps, editors and upload forms accept, and see what it does to the file size. All in your browser.
- Convert WebP to PNG: Turn a WebP into a PNG that keeps its transparent background, for editors, slides and apps that will not open WebP. In your browser, no upload.
- Image Compressor: Reduce JPEG, PNG and WebP file sizes while keeping quality high.
- Image Resizer: Resize images by pixels, percentage or longest side.
- How I Edit Photos in GIMP: A Practical Workflow for GIMP 3.2: Which formats I export for the web, for email and for keeping.
- I Built the Tools I Kept Looking For as a Photographer: Why the converter works in your browser and never sees your files.