JPG to JPS Converter
FileFlip converts JPG to JPS 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 JPG file to JPS?#
- Drop your JPG 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 JPS 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 JPS file. Your browser writes it straight to your downloads folder, because there was never a server holding it.
Does converting JPG to JPS lose quality?#
Yes, a little. JPG and JPS are both lossy, so the file is decoded from one encoding and written into another, and detail goes each way. A single conversion is usually impossible to spot; converting back and forth repeatedly is not.
Is it safe to convert JPG files online?#
Yes, because nothing is uploaded. FileFlip converts JPG 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 JPG to JPS actually does to the file#
Converting JPG to JPS runs on ImageMagick, downloads 14.1 MB of WebAssembly the first time and nothing after that, decodes one lossy encoding and writes another, keeps EXIF metadata and ICC colour profile.
| Engine | ImageMagick |
|---|---|
| Conversion path | One step: JPG → JPS |
| Downloaded to your browser | 14.1 MB, once, then cached by your browser |
| Quality | Lossy, second 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. |
What is a JPG file?#
A JPG file holds a photograph or other continuous-tone image compressed with the JPEG algorithm, the lossy codec that has been the default for digital photos and web images since 1992.
Use JPG for photographs and any image where small file size matters more than pixel-perfect fidelity or a transparent background.
Convert away from JPG when the image needs transparency, when it's flat-color artwork or text that PNG compresses better, or when the file has been through enough edit-and-resave cycles that the compression artifacts are visible.
What is a JPS file?#
A JPS file is an ordinary JPEG photograph that holds two views of the same scene side by side, one for each eye, flagged as a stereo pair by an APP3 marker that most software simply ignores.
Save a stereo pair as JPS when the destination software, such as StereoPhoto Maker or an anaglyph viewer, reads the APP3 stereo marker and the pair needs to travel as one file.
Convert JPS to a plain JPG when only the flat side-by-side image matters, or split it into two separate JPGs when software needs the left and right views on their own.
JPG to JPS questions people ask#
What does JPG stand for?
JPG is a shortened spelling of JPEG, which stands for Joint Photographic Experts Group, the committee that designed the compression standard in 1992. The extension itself carries no separate meaning beyond that origin.
Is JPG lossy or lossless?
JPG is a lossy format. Its compression discards image detail that the algorithm judges least noticeable to the eye, which is what lets it shrink a photo to a fraction of its uncompressed size, but the discarded detail can't be recovered later.
Why does my JPG keep losing quality every time I save it?
Each time a JPG is opened, edited, and saved again, the software recompresses the whole image, and JPEG's lossy compression throws away a bit more information on every pass. Editing a copy in a lossless format like PNG or TIFF and only exporting the final result to JPG avoids this generational loss.
Can a JPG have a transparent background?
No. JPG stores only red, green, and blue channels per pixel and has no alpha channel for transparency. A JPG with an apparently transparent area is actually filled with a solid color, usually white; PNG or WebP are used when transparency is needed.