Extract text from Java shared archives (JSA)
To convert JSA archives to another format, you need Java HotSpot VM or other Developer software.
To convert other file formats to the "Java Memory Dump Archive" file type, you need software like Java HotSpot VM or a similar tool.
The .JSA file is highly specialized, primarily acting as a Java Shared Archive generated by the Java HotSpot Virtual Machine to speed up application load times via Class Data Sharing (CDS). A minor percentage of these files are Server Application Event Handlers for the deprecated Adobe JRun environment.
The main disadvantage of a Java .JSA file is its extreme rigidity. It is a proprietary, version-locked binary memory dump containing pre-parsed Java classes. It is heavily tied to the environment that generated it; a file created on a 64-bit system will fail on a 32-bit system, and it cannot be shared across different Java versions. They are completely unreadable by standard web browsers, and attempting to open one in a text editor will yield scrambled characters.
Because this file represents an internal system memory state, typical online converters fail to process it. You cannot simply convert a .JSA file to a standard DOCX or PDF format. It is notoriously difficult to open or convert, and often only the original software (the exact matching JVM version) can properly read or export the data.
However, you do not need to remain locked out. Just drag and drop your file to identify the format, view it, and convert it when possible. convert.guru can still identify the file format, inspect the file, and show text or internal content. If our analysis detects a supported underlying or embedded format - or if your file happens to be the legacy plain-text Adobe JRun variant - viewing or conversion may still be possible.
Convert.Guru analyzes your JSA file, detects the exact format, and lets you read the text inside.
Users also converted TIMESTAMP, YYZ and NPZ files.
If you want to convert JSA file to , you can use Java HotSpot VM or similar software from the "Java Class Data Sharing" category. In the File menu, look for Save As… or Export….
To convert files to JSA, try Java HotSpot VM or another comparable tool in the "Java Class Data Sharing" 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 JSA converter.