Extract text from My Notes Keeper files (MNK)
To convert MNK files to another format, you need My Notes Keeper or other Database software.
To convert other file formats to the "PIM Database File" file type, you need software like My Notes Keeper or a similar tool.
The .MNK file is a proprietary data container created by My Notes Keeper, a Windows-based Personal Information Manager (PIM) developed by Wpg Computing. It acts as a hierarchical digital binder, storing rich text notes, images, contact lists, and embedded attachments within a single database file. Historically, the only reliable way to read or manage these files is by installing the original desktop application on a Windows machine.
Users typically need to convert .MNK files because the format is highly restrictive and outdated. It lacks native support on modern operating systems like macOS, iOS, or Android, and cannot be opened in web browsers. Relying on a proprietary, platform-locked application to access your personal knowledge base is risky; if you cannot run the legacy software, your entire database becomes inaccessible.
The best strategy for long-term archiving is to convert the contents into universal formats. Extracting the data to TXT (Plain Text) guarantees permanent readability, while converting to RTF (Rich Text Format) or HTML helps preserve bolding, lists, and embedded images. Be aware that the proprietary folder tree structure and internal hyperlinks between notes are usually lost when migrating away from the native software.
Because .MNK is a closed, undocumented format, standard online document converters fail to process it. They expect flat documents, not hierarchical databases. Even without the original software, our analysis tool can often detect the underlying embedded rich text or raw strings, allowing you to view the content and recover your locked data.
Convert.Guru analyzes your MNK file, detects the exact format, and lets you read the text inside.
If you want to convert MNK file to , you can use My Notes Keeper or similar software from the "Personal Information Management Notebook" category. In the File menu, look for Save As… or Export….
To convert files to MNK, try My Notes Keeper or another comparable tool in the "Personal Information Management Notebook" 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 MNK converter.