Drop file here. 150 MB maximum file size.
An ONE file is a document created by OneNote, a note-taking program developed by Microsoft. It contains one or more sections composed of one or more pages of content. A file may contain text, scanned writing and glued objects from other applications, such as images, drawings and audio/video clips.
There is an icon in an ICO file that is typically used to represent a Windows program, file, or folder. Store one or more images of different sizes so that they can be correctly placed at the top; scale according to their use. These ICO files are similar to .CUR files, which are also used in Windows, and .ICNS files, which are used in MacOS.
Access powerful and secure free online ONE tools to convert, view, edit, merge, split, and compare ONE files β all without installing any software. Our tools support the .ONE (OneNote Document) file extension and run smoothly in any modern browser.
Select a tool below to explore features and manage your ONE files directly from your device with ease.
Chose or drag & drop your ONE file, click Convert to ICO, and download the ICO file. No registration needed.
Yes, all uploads are encrypted. Your files are auto-deleted after 24 hours.
Yes, our converter retains layout, fonts, and images as accurately as possible.
Fileproinfo converter engine works fast. You can convert ONE to ICO in a few seconds to couple of minutes for large size files with complex structure.
FileProInfo support manay file formats that allow you to convert ONE to 100s of file formats, without any limit, registration and downloading, 100% free and online ONE converter.
All converters in this list are manually verified & 100% free and working properly, however you must use these apps according to their respective terms & conditions.
This tool and page updated at: 12-Apr-2025
About FileProInfo: FileProInfo is a trusted platform dedicated to file formats and software programs. We provide accurate technical details, easy-to-use navigation, and advanced search capabilities to help users explore, manage, and convert file types efficiently.
Listed file converters are from the wide range of online file converter.
These are the most polular file/document converters based on the user's review and usage on the FileProInfo.