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FTS to DBK Converter

Export FTS to DBK — simple online conversion

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No Install Needed

The converter runs entirely in your browser — no desktop software required. Works on all major platforms and devices alike.

Effortless Conversion

Upload your FTS, pick DBK, and click Convert — the entire process takes just a few clicks with no technical expertise required.

Visual Fidelity

Your FTS imagery is carefully converted to DBK with maximum quality retention. No unnecessary degradation during the transformation process.

How to convert FTS to DBK

1

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

2

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

3

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

About formats

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
DBK is a file extension associated with DocBook, a semantic markup language for technical documentation defined in XML (and originally SGML). DocBook was created around 1991 by HaL Computer Systems and O'Reilly & Associates, later maintained by the OASIS DocBook Technical Committee. The vocabulary provides over 400 element types designed specifically for books, articles, reference pages, and technical manuals — including structural elements (book, chapter, section, appendix), block elements (para, programlisting, table, figure), and inline elements (emphasis, filename, command, classname). Authors write content focusing on meaning rather than appearance, and separate stylesheets transform the DocBook source into output formats like HTML, PDF, EPUB, and man pages. One advantage is strict separation of content and presentation — a single DocBook source document can generate a printed book, a website, an ebook, and Unix man pages through different transformation pipelines, without any content duplication. The rich semantic vocabulary is another strength: because elements like <command>, <filename>, and <errorcode> carry precise meaning, toolchains can index, cross-reference, and validate technical content in ways that generic markup cannot. DocBook has been adopted by major open-source projects including the Linux kernel documentation, GNOME, KDE, and FreeBSD for their official documentation, and it remains the standard for single-source technical publishing.
Initial release: 1991

Frequently Asked Questions

Why convert FTS to DBK?

Semantic markup for technical documentation — converting FTS to DBK gives your astronomical images broader reach and easier sharing across standard platforms.

What programs open DBK?

Standard office suites open DBK — Microsoft Office, LibreOffice, Google Docs, and dedicated viewers all handle this format.

Can I convert multiple FTS images at once?

Yes — upload several FTS images in one session and convert them all to DBK simultaneously. Batch processing saves significant time.

Does this work on mobile devices?

Yes — the converter runs in any web browser, so it works on phones, tablets, laptops, and desktops regardless of operating system.

What is the FTS format?

FTS is used in astronomy and scientific research. It stores telescope captures and observatory data — converting to DBK makes this data universally accessible.