Extract text from NSX files
To convert your NSX file to another format, you need Synology Note Station or other Backup software.
To convert other file formats to the "Note Archive" file type, you need software like Synology Note Station or a similar tool.
The .nsx file extension is most frequently associated with Synology Note Station, a proprietary note-taking application hosted on Synology NAS devices. These files serve as compressed backup archives containing a user's entire library of notebooks, to-do lists, and attachments. The primary "problem" with .nsx files is their vendor lock-in; they are essentially disguised ZIP archives containing JSON metadata and raw content, but they cannot be natively opened by standard text editors, Microsoft Word, or competitors like Evernote or Obsidian without preprocessing.
For users looking to migrate away from the Synology ecosystem, the .nsx format is a common problem. While you can manually rename the extension to ZIP to access raw assets, the internal structure is disjointed, making it difficult to reconstruct readable notes. To make this data usable, the best conversion workflow is transforming .nsx to Markdown (.MD) for compatibility with modern knowledge bases, or PDF for permanent, layout-preserved archiving.
Less commonly, an .nsx file may be a database index used by CA-Clipper or xBase++ legacy systems, or a project file for AppStudio (mobile app development). These variants are strictly technical system files and generally should not be converted, as doing so will break the associated software's functionality.
Convert.Guru analyzes your NSX file, detects the exact format, and lets you read the text inside.
Users also converted RSX, 22, KTX and IFF files.
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 NSX converter.