Convert Exe To Py Online

| | Supported Python Versions | Description | |---|---|---| | uncompyle6 | 1.0–3.8 | A grammar-based decompiler that rebuilds Python source code from bytecode patterns. Reliable for older Python versions. | | pycdc (Decompyle++) | 3.0+ | A C++ decompiler that supports newer Python versions better than uncompyle6. Often the recommended choice for Python 3.9 and later. | | PyLingual | 3.6–3.13 | An AI/deep learning-based decompiler that handles corrupted, encrypted, or obfuscated bytecode. Slower but more powerful for challenging cases. | | pygetsource | 3.7–3.11 | A graph-based decompiler that converts bytecode back to source code using a flow graph reduction approach. |

Use to translate your critical Python modules into native C code. Once converted to C, compile those modules directly into binary shared libraries ( .pyd on Windows, .so on Linux). This process converts your logic into true machine language, making it completely immune to standard Python bytecode decompilers. Summary Checklist Tools Required Phase 1

Run the command line tool, passing your bytecode file as the target and redirecting the output to a new Python file: pycdc main.pyc > restored_script.py Use code with caution. Option B: Using Uncompyle6

Only decompile:

While extracting your own code is a lifesaver, reverse-engineering someone else's software can be a legal gray area. Most commercial software licenses explicitly forbid "decompilation." Always ensure you have the right to peek at the ingredients before you start un-baking the cake! step-by-step guide on how to run a decompiler, or are you looking for ways to protect your own .exe from being reversed? convert exe to py

Modern Python versions (3.7+) often strip the "magic number" (a 16-byte header that tells the interpreter which version of Python created the file) from the entry-point file during bundling.

But what happens when you need to go backward? Perhaps you have lost the original source code, or you are a security researcher analyzing a suspicious file. Converting an .exe back into a .py file is a process known as or unpacking .

The good news is that if your .exe was created from a Python program using tools like PyInstaller, cx_Freeze, or py2exe, you have a fighting chance at recovering your code. This comprehensive guide will walk you through the entire process, from understanding how Python executables are built to successfully extracting and decompiling them back into readable Python source code.

If you’ve landed here searching for the term you’re likely hoping for a magic button—a software tool that can take any Windows executable file ( .exe ) and instantly transform it back into human-readable Python source code ( .py ). | | Supported Python Versions | Description |

is a compiled binary, you cannot simply rename the file. You must extract the original bytecode and then decompile it: Extract the Archive

When PyInstaller executables are created with encryption ( --key parameter), the PYZ archive is encrypted. Pyinstxtractor will dump such archives as-is rather than extracting them. You may need additional decryption tools or attempts to extract these encrypted files successfully. As a general rule, avoid using the --key flag if you ever anticipate needing to recover your own source code.

Download the latest version of pyinstxtractor.py from its official GitHub repository or via trusted script sources. Save pyinstxtractor.py directly inside your decoder folder. Step 3: Run the Extraction Script

PyInstaller is the most common tool for packaging Python scripts into EXEs. The pyinstxtractor.py script can unpack a PyInstaller-generated EXE. Often the recommended choice for Python 3

If the executable was built using Python version 3.8 or older, is the industry standard. Install the tool via pip: pip install uncompyle6 Use code with caution. Decompile the file and save the output: uncompyle6 -o main.py main.pyc Use code with caution. Use Decompyle++ / pycdc (For Python 3.9 and Newer)

Many modern Python EXEs are protected with , Oxyry , or custom encryption. In these cases, the bytecode itself is scrambled. Extracting it yields gibberish, and decompilation is nearly impossible without the decryption key.

: Open your terminal/command prompt and run: python pyinstxtractor.py your_program.exe