JNG to TIFF Converter
FileFlip converts JNG to TIFF 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 JNG file to TIFF?#
- Drop your JNG 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 TIFF 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 TIFF file. Your browser writes it straight to your downloads folder, because there was never a server holding it.
Does converting JNG to TIFF lose quality?#
TIFF is a lossless format, so nothing further is lost here, but nothing is recovered either. Whatever the JNG encoder already threw away is gone, and the TIFF file will usually be several times larger for exactly the same content.
Is it safe to convert JNG files online?#
Yes, because nothing is uploaded. FileFlip converts JNG 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 JNG to TIFF actually does to the file#
Converting JNG to TIFF runs on ImageMagick, downloads 14.1 MB of WebAssembly the first time and nothing after that, writes a lossless file that cannot recover what the source already discarded, keeps transparency.
| Engine | ImageMagick |
|---|---|
| Conversion path | One step: JNG → TIFF |
| Downloaded to your browser | 14.1 MB, once, then cached by your browser |
| Quality | Lossless output, but nothing is recovered |
| 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 |
|---|---|---|
| Transparency | Kept | Carried through into the converted file. |
What is a JNG file?#
A JNG file holds a single still image whose colour data is compressed as baseline or progressive JPEG inside the same chunk-based container PNG uses, with an optional PNG- or JPEG-encoded alpha channel for transparency.
There's little reason to create a new JNG file today; the format only makes sense inside an existing MNG animation that already mixes JPEG and PNG frames.
Convert JNG to JPG or PNG for anything meant to display in a browser, since none of the major browsers render JNG natively.
What is a TIFF file?#
A TIFF file stores one or more raster images, usually uncompressed or losslessly compressed, inside a tagged container that scanners, printers, and publishing software rely on to keep exact pixel data intact through repeated edits.
Use TIFF for scanned documents, print production, and archival photography, where preserving every pixel losslessly matters more than file size.
Convert TIFF to JPEG or PNG when the image needs to go on the web or be shared casually, since browsers cannot display TIFF and the files are far bigger than screen viewing requires.
JNG to TIFF questions people ask#
What opens a JNG file?
JNG files open in GIMP, Gwenview and ImageMagick-based tools, but no mainstream web browser renders them. That gap is the main reason JNG never spread beyond the small set of software built around the MNG format.
Is JNG the same thing as PNG?
No. A JNG file reuses PNG's chunk-based container but compresses its colour data as JPEG instead of PNG's lossless method, so it behaves more like a JPEG with an optional transparency layer than a true PNG. JNG exists specifically as the lossy, photographic sibling inside the MNG animation format.
Why did JNG never catch on?
JNG's fate was tied to MNG, the animated format it was built to complement, and MNG never got the browser support GIF and later APNG had. Combined with newer formats like WebP and JPEG XL covering the same lossy-plus-transparency need, JNG stayed a niche format used mainly by MNG-aware software.
What is a TIFF file used for?
TIFF files are used for scanned documents, professional photography, and print production, because the format can store an image with no compression loss at all. Publishing software, print shops, and archives favor it precisely because a TIFF looks identical no matter how many times it is opened and resaved.