PNG to JPEG Converter
FileFlip converts PNG to JPEG entirely inside your browser, using ImageMagick compiled to WebAssembly. The file is never uploaded to a server: it is read off your disk, converted on your own machine, and saved back by the browser. That means no file-size limit, no queue and no account.
How do I convert a PNG file to JPEG?#
- Drop your PNG file onto the converter at the top of this page, or click it to pick one from your computer. You can add as many as you like.
- Leave the target set to JPEG and the conversion starts on its own. FileFlip downloads 14.1 MB of WebAssembly the first time and nothing after that, then runs ImageMagick on your own machine.
- Save the JPEG file. Your browser writes it straight to your downloads folder, because there was never a server holding it.
Does converting PNG to JPEG lose quality?#
Yes, once. PNG keeps everything and JPEG does not, so this is the first time the file meets a lossy encoder. At high quality the difference is hard to see, and it is worth keeping the PNG original, because every later re-save of the JPEG loses a little more.
Is it safe to convert PNG files online?#
Yes, because nothing is uploaded. FileFlip converts PNG files inside the browser tab you already have open, using WebAssembly builds of the same engines a desktop converter would install. Your file is read from your own disk into the page's memory, and no request carrying it is ever made.
You do not have to take that on trust. Open your browser's network panel, run a conversion, and you will see the engine come down and your file go nowhere. There is no upload, no server-side copy, no retention window, and no account tied to what you converted.
How FileFlip works lists every engine, its version and its download size, and shows how to check for yourself that nothing leaves your machine.
What PNG to JPEG actually does to the file#
Converting PNG to JPEG runs on ImageMagick, downloads 14.1 MB of WebAssembly the first time and nothing after that, encodes a lossless source with a lossy encoder for the first time, keeps EXIF metadata and ICC colour profile, and drops transparency.
| Engine | ImageMagick |
|---|---|
| Conversion path | One step: PNG → JPEG |
| Downloaded to your browser | 14.1 MB, once, then cached by your browser |
| Quality | Lossy, first generation |
| You get back | One file |
| Where it runs | In a background worker, so the page stays responsive |
What survives the conversion
| What is in the file | This conversion | Why |
|---|---|---|
| EXIF metadata | Kept | Carried through into the converted file. |
| ICC colour profile | Kept | Carried through into the converted file. |
| Transparency | Dropped | The target format has nowhere to put it. |
What is a PNG file?#
A PNG file stores a raster image using lossless DEFLATE compression, which is why screenshots, logos, and graphics with flat colour or sharp edges use it instead of JPEG.
Use PNG for screenshots, logos, icons, and any graphic with flat colour or transparency, where exact pixel reproduction matters more than file size.
Convert PNG to JPEG or WebP when the image is a photograph and file size matters more than pixel-perfect reproduction, since a photographic PNG is typically several times larger than an equally sharp lossy file.
What is a JPEG file?#
.jpeg and .jpg are the same JPEG-compressed image format under two different extension spellings, a split that dates to the three-character extension limit of MS-DOS and early Windows.
Save an image as .jpeg over .jpg when a system, script, or personal convention specifically expects the full four-letter extension; the image data itself doesn't care which one is used.
Rename or export as .jpg instead of .jpeg when a target system, upload form, or older piece of software only recognizes the three-letter extension, which is the more common expectation today.
PNG to JPEG questions people ask#
Is PNG lossless?
Yes, PNG is always lossless. It compresses image data with the DEFLATE algorithm, the same family of compression used in ZIP files, so every pixel decodes back exactly as it was encoded. There is no lossy PNG mode, unlike JPEG.
Why is my PNG file so much bigger than the same photo saved as JPEG?
PNG's DEFLATE compression is lossless, so it has to encode every bit of the noise and subtle colour variation a photograph contains. JPEG gets its smaller size by discarding detail the eye barely notices, which a lossless format like PNG can't do. PNG stays efficient for flat-colour graphics like screenshots or logos; it's photographs where the size difference shows up.
Does PNG support animation?
A standard PNG file does not animate; it holds exactly one image. Animated PNG (APNG) is a separate extension, created by Mozilla developers in 2008 and folded into the official PNG specification in 2025, that stores multiple frames inside a file that still uses the .png extension. All major browsers now play APNG frames, but many image editors and older viewers only show its first frame, so GIF or WebP remain more reliable choices when animation has to work everywhere.
Does PNG support transparency?
Yes, PNG supports transparency through an alpha channel, letting each pixel be fully opaque, fully transparent, or partially see-through. It works on both truecolour and palette-based PNGs, which is why PNG is the standard choice for logos and icons that need to sit on any background.