ONETOC Converter

Convert ONETOC files online for free

Select File
Drop or upload your .ONETOC file

How to convert your ONETOC file

Click Select File above, and choose your ONETOC file.
You'll see a preview.
Click the "Convert file to..." button to save your file in the format you want.

Convert ONETOC to another file type

The converter easily converts your ONETOC file to various formats—free and online. No Windows or extra software needed.

Convert a file to ONETOC

The converter also works in reverse, allowing you to convert your file into the ONETOC file type—in the best quality.

About ONETOC files

ONETOC files are associated with Microsoft OneNote, a popular note-taking application. These files serve as table of contents for OneNote notebooks, organizing and indexing the sections within a notebook. While ONETOC files are essential for OneNote's internal structure, they aren't directly usable outside of the application.

One of the primary challenges in converting ONETOC files is their proprietary format, which is tightly integrated with OneNote. This makes direct conversion to other file types difficult without specialized software. Additionally, ONETOC files don't contain actual note content, but rather metadata that organizes content, which limits their standalone functionality.

Currently, conversion options for ONETOC files are limited. Conversion typically involves exporting the entire OneNote notebook or sections to more versatile formats like PDF, DOCX, or HTML. Software applications such as Microsoft OneNote itself or Microsoft Word can be used to export the content into these formats. You might also explore conversion tools offered in desktop applications on platforms like LibreOffice or Apache OpenOffice for further editing and conversion options.

For a comprehensive understanding of OneNote, you can refer to the Wikipedia page on Microsoft OneNote.

Given the complexity and limitations of ONETOC files, converting them to other formats can be a hassle. That's why using the free and easy services like Convert.Guru is recommended. Simply drag and drop your ONETOC files onto the website to seamlessly convert them to the format of your choice, enhancing accessibility and usability.

The ONETOC Converter Story

The history of Convert.Guru began more than 25 years ago in California, when Tom Simondi published the most comprehensive database of file formats on his website. Before that, Tom had worked on Space Shuttle development at the Air Force Systems Command’s Space Division in Los Angeles. He is known as one of the top programmers of the late 1980s.

When Microsoft integrated Tom’s Filext database into Windows XP, it became the leading platform for analyzing and processing file types and formats.

Today, we use the latest technologies to analyze, process, and convert one of the world's largest collections of file formats. We are committed to developing the best ONETOC converter by continuously improving quality, usability, and reliability.