XCF to JXL Converter
FileFlip converts XCF to JXL 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 an XCF file to JXL?#
- Drop your XCF 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 JXL 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 JXL file. Your browser writes it straight to your downloads folder, because there was never a server holding it.
Does converting XCF to JXL lose quality?#
It depends on what is inside the file. XCF is a container rather than a codec, so whether the JXL conversion copies the streams across untouched or re-encodes them is decided by the codecs that particular file happens to use.
Is it safe to convert XCF files online?#
Yes, because nothing is uploaded. FileFlip converts XCF 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 XCF to JXL actually does to the file#
Converting XCF to JXL runs on ImageMagick, downloads 14.1 MB of WebAssembly the first time and nothing after that, re-encodes or copies through depending on the codecs in the file, keeps transparency, and drops layers and extra images.
| Engine | ImageMagick |
|---|---|
| Conversion path | One step: XCF → JXL |
| Downloaded to your browser | 14.1 MB, once, then cached by your browser |
| Quality | Decided by the codecs inside the file |
| 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. |
| Layers | Dropped | The target format has nowhere to put it. |
| Extra images | Dropped | The target format has nowhere to put it. |
Worth knowing before you start:
- ImageMagick is asked for a single image, so only the first frame, page, or icon size is read
What is an XCF file?#
An XCF file is the working document format GIMP saves to, keeping an image's layers, layer masks, channels and paths independently editable instead of merging them into one picture.
Keep a project as XCF while it's still being edited in GIMP, so layers, masks and paths stay available for later changes.
Convert XCF to PNG or JPEG once the image is finished and needs to be viewed or shared outside GIMP, since almost nothing else reads the layered file.
What is a JXL file?#
A JXL file stores an image under the JPEG XL coding system, a format built to losslessly repackage an existing JPEG into a smaller file or to encode a new photo at higher quality per byte than JPEG, WebP or AVIF.
Use JPEG XL for archiving and photo libraries where you want smaller files than JPEG without giving up the option to reconstruct the original JPEG exactly, especially once Chrome and Firefox finish rolling out default decoding.
Convert JXL to JPEG or PNG for anything going on the web today, since most browsers still require a manual flag to display JPEG XL directly.
XCF to JXL questions people ask#
Can Photoshop open XCF files?
No, Photoshop doesn't support XCF natively. GIMP itself is the only editor with full-fidelity support, though the browser-based Photopea can open XCF files with much of their layer structure intact.
What happens to my layers when I export XCF to PNG or JPEG?
Exporting an XCF file to PNG or JPEG merges every layer into one flat image, bakes layer masks and channels permanently into the pixels, and rasterizes any text so it can no longer be edited. Paths and guides are dropped entirely, since neither format has anywhere to store them.
Why won't GIMP open my old XCF file, or an old GIMP open a new one?
XCF's structure has changed across GIMP versions: layer groups, added in GIMP 2.7, won't open in GIMP 2.6 or earlier, and a text layer created in modern GIMP degrades to a flat rasterized layer if opened in GIMP 1.2. Saving from a newer GIMP generally isn't safe to assume an older GIMP can read.
What's the difference between XCF and OpenRaster?
XCF is GIMP's own internal working format, built to mirror GIMP's internal engine and prone to changing between versions, while OpenRaster (.ora) is a format GIMP helped develop jointly with Krita specifically for interchange between different programs. GIMP's own documentation recommends OpenRaster over XCF when a layered file needs to move between tools or be archived long-term.