Extract text from Notes backup files (KMNB)
To convert KMNB backups to another format, you need Keep My Notes or other Backup software.
To convert other file formats to the "Mobile App Data Backup" file type, you need software like Keep My Notes or a similar tool.
The .kmnb file format serves two primary functions: a personal journal database file used by Kamon App, or a backup file generated by the Keep My Notes app developed by KiteTech. Both variations store user-generated text, daily journal entries, and app-specific metadata.
The main disadvantage of the .kmnb format is severe vendor lock-in. These are proprietary backup structures tied exclusively to specific mobile applications. If you lose your phone, switch operating systems, or migrate to a different note-taking platform, your data is trapped inside an unrecognizable file format. Standard web browsers and word processors like Microsoft Word or Google Docs cannot open them.
Since the Kamon App variant relies on an internal SQL database structure, users frequently need to extract their raw journal entries to prevent data loss. The ideal conversion targets are SQL, CSV, or plain TXT. Extracting data to these formats guarantees readability, though you will likely lose app-specific styling, custom folders, and specific timestamp metadata.
Because .kmnb files are closed, proprietary app backups, standard online file converters almost always fail to process them. Often, only the original mobile software can properly read or export the data. However, just drag and drop your file onto convert.guru to identify the format, view its internal hex or text structure, and convert it when possible. Our platform can inspect the file for underlying SQL tables or plain text fragments, helping you recover your trapped notes even without the original application.
Convert.Guru analyzes your KMNB file, detects the exact format, and lets you read the text inside.
Users also converted MYNOTESBACKUP, INDD, BIN, TORRENT, PDF, ZIP, SAV, FDB and 3 files.
If you want to convert KMNB file to BAK, BACKUP, OLD, TMP, TEMP, ARC, ZIP, TAR, GZ, 7Z, RAR or ISO, you can use Keep My Notes or similar software from the "Mobile App Note Backup" category. In the File menu, look for Save As… or Export….
To convert SNAPSHOT, OLD, IMG, RESTORE, ISO, COPY, VMDK, TMP, VHD, BAK, ARCHIVE or BACKUP files to KMNB, try Keep My Notes or another comparable tool in the "Mobile App Note Backup" 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 KMNB converter.