XCF to FTS Converter

Online XCF to FTS image converter — free to use

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No Installation

Everything happens in the browser. Open Convertio, upload your XCF file, and download the FTS result — zero setup required.

Secure Processing

Your XCF files are deleted immediately after conversion. FTS outputs are removed from servers within 24 hours — your images stay private.

Fast Results

XCF to FTS conversion typically finishes in seconds. Cloud-based processing delivers quick turnaround even for detailed images.

How to convert XCF to FTS

1

Select files from Computer, Google Drive, Dropbox, URL or by dragging it on the page.

2

Choose fts or any other format you need as a result (more than 200 formats supported)

3

Let the file convert and you can download your fts file right afterwards

About formats

XCF (eXperimental Computing Facility) is the native file format of GIMP (GNU Image Manipulation Program), named after the computing facility at UC Berkeley where Spencer Kimball and Peter Mattis originally developed GIMP as a student project, with the format introduced alongside GIMP 1.0 in 1998. XCF stores the complete editing state of a GIMP project: all layers with their positions, dimensions, opacity, and blending modes; layer masks; channels (including custom alpha channels); paths (vector shapes stored as Bezier curves); parasites (arbitrary named data attached to the image or individual layers); and the image's color profile, resolution, guides, and grid settings. The format supports 8-bit, 16-bit, and 32-bit floating-point precision per channel in RGB, grayscale, and indexed color modes, and uses a tile-based internal structure where the image is divided into 64x64 pixel tiles that are individually RLE-compressed. Each layer in an XCF file is stored independently with its own dimensions (layers can be larger or smaller than the canvas), enabling non-destructive editing workflows where source material is preserved at full resolution. One advantage is complete state preservation: XCF files save everything needed to resume editing exactly where you left off — every layer, mask, path, and setting — making them the essential working format for any multi-session GIMP project. The format's open specification is another strength: the XCF structure is fully documented and readable by GIMP, XnView, ImageMagick, and various programming libraries, ensuring project files remain accessible without vendor lock-in.
Initial release: 1998
FTS is a file extension for the Flexible Image Transport System (FITS), the standard data format used in astronomy since 1981 when it was defined by Don Wells, Eric Greisen, and R.H. Harten at the National Radio Astronomy Observatory, and subsequently endorsed by the International Astronomical Union in 1982. FITS was designed from the outset as a self-describing archival format: each file begins with one or more 2880-byte header blocks containing ASCII keyword-value pairs that describe the data's dimensions, coordinate system, observation parameters, and provenance, followed by data blocks in a variety of numeric types — 8/16/32/64-bit integers and 32/64-bit IEEE floating-point values. FITS supports multi-dimensional arrays (images, data cubes, hypercubes), binary tables for catalog data, and ASCII tables, with multiple Header/Data Units (HDUs) that can coexist in a single file. The format handles specialized astronomical data: spectral cubes, radio interferometry visibilities, multi-extension mosaic images from CCD arrays, and time-series photometry. One advantage is scientific rigor: FITS mandates that all metadata needed to interpret the data physically — coordinate transformations (WCS), photometric calibration, telescope and instrument parameters — travels with the file, eliminating the metadata-loss problem that plagues general-purpose image formats in scientific contexts. The format's longevity and institutional backing is another strength — virtually every observatory, space telescope (Hubble, James Webb, Chandra), and astronomical software package (DS9, IRAF, Astropy) uses FITS as its primary data format.
Developer: NASA / IAU
Initial release: 1981

Frequently Asked Questions

Why convert XCF to FTS?

XCF preserves GIMP's editing state but is not viewable in most software. Converting to FTS produces a universally compatible result.

What can I use to view FTS files?

FITS viewers like SAOImage DS9, Aladin, GIMP (with plugin), and astronomy software like AstroImageJ and SExtractor.

Do I need to pay for this converter?

Basic XCF to FTS conversions are free. Convertio offers premium tiers for heavier workloads with faster processing and priority support.

Is the conversion fast?

Yes — XCF to FTS conversion on Convertio runs on cloud servers and completes in seconds for typical image files.

Will the image quality change?

Image data is transferred faithfully from XCF to FTS. The conversion itself does not degrade or enhance the original pixel information.

Are my files secure during conversion?

All file transfers use encrypted connections. Uploaded XCF files are deleted after processing, and FTS outputs are purged within 24 hours.