NCX Converter

Extract text from NCX files

Select File
Drop or upload your .NCX file

Online File Converter

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How to extract text from your NCX file

Click the "Select File" button above, and choose your NCX file.
You’ll see a preview, if available.
Click the "Convert file to..." button to extract text information.

Convert NCX to another file type

To convert your NCX file to another format, you need Calibre or other E-Book software.

Convert a file to NCX

To convert other file formats to the "Navigation Control XML" file type, you need software like Calibre or a similar tool.

About NCX files

The .NCX (Navigation Control file for XML) serves as the hierarchical "Table of Contents" for EPUB 2 electronic books. It maps the book's structure - chapters, sections, and page numbers - to specific locations within the ebook's content files. While technically an XML file, it is designed to be machine-read by e-readers like the older Amazon Kindle or Barnes & Noble Nook rather than humans.

Common Friction Points:

Obsolescence: The format was deprecated in the newer EPUB 3 standard (replaced by nav.xhtml), meaning modern editing workflows often flag it as redundant legacy code.
Hidden Data: Users rarely encounter this file unless they unzip an EPUB container or use ebook editing software like Calibre.
Navicat Confusion: A completely unrelated file with the same extension is generated by Navicat to back up database connection settings. This creates confusion for users trying to open a "connection" file in an ebook reader or vice versa.

Best Conversion Targets:

For Viewing: Convert to HTML or TXT to turn the raw XML tags into a readable list of chapters.
For Development: Convert to XML to parse the structure for use in other applications.
For Ebook Authoring: Authors upgrading to EPUB 3 often need to convert .ncx data into an HTML5-compliant Nav Document.

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.

FAQ

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 "Ebook 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 "Ebook Navigation Control" category.

The NCX Converter Story

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.