Extract text from Private Notepad backups (PNB)
To convert PNB backups to another format, you need Private Notepad or other Backup software.
To convert other file formats to the "App Data Backup" file type, you need software like Private Notepad or a similar tool.
The .PNB file format is primarily used as a backup file for the Private Notepad application. Users create these files to export, backup, or transfer their personal notes and settings between devices.
While useful within its specific ecosystem, the .PNB format relies on a proprietary file extension. This makes it frustrating to open on desktop computers or non-Android devices. It is not natively supported by web browsers or standard office suites like Microsoft Word. Users who switch away from the app often find themselves locked out of their own notes because standard online converters fail to recognize the custom format.
Fortunately, underneath the unfamiliar extension, .PNB files are internally structured as standard JSON (JavaScript Object Notation). To access your text, the best target formats for conversion are JSON, TXT, or CSV. Converting to these plain text formats ensures you regain universal access to your data, though you will lose app-specific settings like UI preferences and password locks.
Because this is an app-specific backup format, standard file converters usually reject it immediately based on the extension alone. Just drag and drop your file onto convert.guru to identify the format, view its internal structure, and extract the text. Since our analysis detects the supported underlying JSON format, viewing and conversion to readable text is entirely possible without needing the original mobile application.
Convert.Guru analyzes your PNB file, detects the exact format, and lets you read the text inside.
Users also converted PNG, JPG, MEMO, IPD and DIY files.
If you want to convert PNB file to MP3, WAV, AAC, FLAC, OGG, WMA, M4A, AIFF, OPUS, ALAC, APE or WV, you can use Private Notepad or similar software from the "Notepad Data Backup" category. In the File menu, look for Save As… or Export….
To convert MIDI, AAC, TTA, AU, WV, DTS, MID, FLAC, RA, MP3, PCM or WAV files to PNB, try Private Notepad or another comparable tool in the "Notepad Data 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 PNB converter.