xortool.py
A Python 3 tool for analyzing XOR-encrypted data that can guess key lengths and decrypt XOR ciphers based on character frequency analysis.
A Python 3 tool for analyzing XOR-encrypted data that can guess key lengths and decrypt XOR ciphers based on character frequency analysis.
Checked October 2026.
xortool.py is a Python 3-based cryptographic analysis tool designed for XOR cipher analysis and decryption.
The tool provides two primary analytical capabilities for XOR-encrypted data. First, it can estimate the key length by analyzing the frequency of equal characters within the encrypted data, using statistical patterns to identify likely key sizes. Second, it attempts to determine the actual XOR key by leveraging knowledge of the most frequently occurring characters in typical plaintext.
The tool operates through command-line interface and requires Python 3 for execution. Installation is available through pip package manager or can be built from source using poetry for development purposes.
xortool.py is particularly useful for reverse engineering scenarios where XOR encryption has been applied to obfuscate data or code, making it a valuable resource for malware analysts and security researchers working with encrypted or encoded samples.
No core features are listed for this product yet, so check the vendor's documentation for the full feature list.
No integrations are listed for this product yet. Check the vendor's documentation, or ask the vendor which integrations and APIs it supports.
Common questions about xortool.py: features, pricing and alternatives.
xortool.py is a product in the Malware Analysis category. It covers Reverse Engineering, Open Source and Security Tools.
xortool.py is free. Download and setup instructions are at https://github.com/hellman/xortool/.
Alternatives to xortool.py listed on CybersecTools:
Compare all xortool.py alternatives at https://cybersectools.com/alternatives/xortoolpy
xortool.py is available as on-premises software. It is listed for startups, small businesses, mid-market companies and enterprises. It is free.
Side by side: features, pricing model and the company behind each one.
VX-Underground is a vast online repository of malware samples, featuring various collections for cybersecurity professionals and researchers to analyze and combat cyber threats.
Cybersecurity & digital forensics software for malware detection and DFIR.
An open-source binary debugger for Windows with a comprehensive plugin system for malware analysis and reverse engineering.
Yaraprocessor allows for scanning data streams in unique ways and dynamic scanning of payloads from network packet captures.
Threat intelligence platform providing real-time threat data and insights.
AI agent for in-depth binary analysis and reverse engineering assistance.
On our shortlist?
No shortlist covers this product's category yet. The closest is Best MDR Solutions for Business.
Get a summary of this page from your assistant.
Mandos MCP: ask about all 9,032 products.
Connect your AI
