Extract text from EPUB navigation files (NCX)
To convert NCX navigation files to another format, you need Calibre or other E-Book software.
To convert other file formats to the "EPUB Navigation Control File" file type, you need software like Calibre or a similar tool.
The .ncx (Navigation Control file for XML) is a structural component used in digital publications, primarily EPUB 2 e-books and DAISY (Digital Accessible Information System) talking books. It functions as a hierarchical table of contents, allowing e-reader software to navigate chapters and sections.
It can be opened by e-book editors like Sigil or Calibre, or any basic text editor since it is formatted in XML.
The major disadvantage of .ncx is its obsolescence. It was deprecated in the EPUB 3 specification, officially replaced by the HTML5 <nav> element. Extracting a readable table of contents directly from an .ncx file is frustrating for end-users because the actual chapter titles are buried inside dense XML tags like <navMap> and <navPoint>. Furthermore, standalone .ncx files are functionally useless without the accompanying OPF manifest and XHTML content files.
To extract the table of contents for clean reference, convert .ncx to TXT or CSV. If you need to upgrade an old e-book structure for modern web use, convert the file to HTML.
Convert.Guru analyzes your NCX file, detects the exact format, and lets you read the text inside.
Users also converted NCEX, OPF, EPUB, SMIL, RAR, ZIP, TV5 and XFDF files.
If you want to convert NCX file to PDF, EPUB, MOBI, AZW, AZW3, KFX, PRC, LIT, OPF, CBZ, CBR or CB7, you can use Calibre or similar software from the "E-book Navigation Control" category. In the File menu, look for Save As… or Export….
To convert FB2, MOBI, CBT, RTF, CB7, DOCX, DJVU, AZW, CBA, PDF, DOC or EPUB files to NCX, try Calibre or another comparable tool in the "E-book Navigation Control" category.
The history of Convert.Guru began over 25 years ago in California with Tom Simondi’s file-format database. A former contributor to Space Shuttle development and a software pioneer of the 1980s, Simondi established a trusted resource for file type analysis that was even referenced by Microsoft Windows XP. Today, we use modern technology to process and convert thousands of file formats while continually improving our NCX converter.