Pyc Decompilation

Tool Introduction

This online tool provides an efficient and convenient Pyc decompilation service, capable of quickly restoring Python compiled .pyc bytecode files into readable .py source code. Whether you need to analyze the running logic of Python programs, learn their implementation principles, or perform code auditing, this tool can be of great help. It supports decompilation of .pyc files from multiple mainstream Python versions, from Python 2.x to Python 3.x.

How to Use

1. Upload the .pyc file you need to decompile, either by clicking the "Select File" button or by dragging and dropping the file into the designated area.
2. The tool will automatically detect or prompt you to select the corresponding Python version (e.g., Python 2.7, Python 3.6, etc.) to ensure accurate decompilation.
3. Click the "Start Decompilation" button, and the tool will process the file.
4. Once decompilation is complete, you will see the restored .py source code directly on the page and can choose to download and save it.

Input parameter format and requirements:

• Supports uploading single or multiple standard Python .pyc binary files.
• File size usually has limitations (e.g., a single file maximum 10MB), please pay attention to page prompts.

Output result format:

• Displays the decompiled .py source code in plain text format.
• The filename is usually the same as the original pyc file but with a .py extension.

Frequently Asked Questions

• Q: Which Python versions of .pyc files does this tool support for decompilation?
• A: This tool supports decompilation of .pyc files compiled from multiple mainstream Python versions from Python 2.x to Python 3.x (e.g., 2.7, 3.6, 3.8, 3.9, etc.).
• Q: Can the decompiled code be fully restored?
• A: In most cases, this tool can restore functionally complete Python source code. However, due to the nature of bytecode, some original information such as comments, precise code formatting, and certain obfuscated or optimized variable names may be lost or differ.
• Q: What are the common reasons for decompilation failure?
• A: Common reasons for decompilation failure include: the uploaded .pyc file is corrupted, the file was compiled using a Python version not supported by this tool, the file is encrypted or has undergone deep obfuscation, or the file is too large and exceeds processing limits.
• Q: Can I download the decompiled code?
• A: Yes, after decompilation is complete, you can not only view the code on the page but also click the provided download button to save the restored .py source code file locally.

Notes

• Please ensure that the .pyc file you upload is complete and undamaged; a damaged file may lead to decompilation failure or inaccurate results.
• The decompilation process may not fully recover all details of the original code, such as comments, blank lines, and some original variable names (especially if the code has been obfuscated).
• Please do not use this tool for illegal purposes, and when decompiling others' code, please comply with relevant laws, regulations, and ethical guidelines.
• Uploaded file size usually has limitations; please pay attention to page prompts to avoid uploading excessively large files that may lead to processing failure.