Click the "Select File" button above, and choose your PYO file.
You’ll see a preview, if available.
Click the "Convert file to..." button to extract text information.
Convert PYO to another file type
To convert your PYO file to another format, you need Python or other Developer software.
Convert a file to PYO
To convert other file formats to the "Compiled Bytecode" file type, you need software like Python or a similar tool.
About PYO files
A .pyo file is primarily an Optimized Python Bytecode file, created by Python versions prior to 3.5 when a script is compiled with the -O (optimize) flag. These files contain binary instructions meant for the Python interpreter rather than human readers, offering slightly faster load times by stripping out assert statements and __doc__ strings.
A significant constraint for users is that .pyo files are not human-readable text. You cannot open them in a code editor like VS Code to view the logic. Furthermore, this format is technically obsolete; Python 3.5+ replaced distinct .pyo extensions with a unified pyc system (PEP 488), meaning modern interpreters may not recognize or execute legacy .pyo files directly. This creates a "black box" problem where developers possess the executable logic but lack the source code.
Best Conversion Targets:
For Code Recovery (.PY): The most critical workflow is decompiling .pyo back to PY (Python Source) to restore editability. This allows you to inspect algorithms, audit security, or migrate legacy code to modern Python versions.
For 3D Design (.DXF / .OBJ): A small percentage of these files are proprietary 3D models created by PYTHA for furniture design. These are strictly locked to the PYTHA ecosystem. To collaborate with architects or use other tools like AutoCAD or Blender, these must be converted to interoperable formats like DXF, DWG, or OBJ.
Convert.Guru analyzes your PYO file, detects the exact format, and lets you read the text inside.
If you want to convert PYO file to PY, EXE, MSI, APP, DMG, DEB, RPM, PKG, RUN, SH, BAT or CMD, you can use Python or similar software from the "Optimized Compiled Python Script" category. In the File menu, look for Save As… or Export….
To convert JAR, APP, SCR, IPA, COM, AAB, PS1, DMG, VBS, EXE, XAPK or MSI files to PYO, try Python or another comparable tool in the "Optimized Compiled Python Script" category.
The PYO Converter Story
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 PYO converter.