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vivisect

Pure python disassembler, debugger, emulator, and static analysis framework

vivisect v1.3.2 96.0K downloads/30d#13,235 on PyPI996
Permissive license Apache License 2.0 Active released

What it is and what it does

Vivisect is a comprehensive binary analysis framework written in pure Python that combines disassembly, static analysis, symbolic execution, and debugging into a single toolkit. It reads and analyzes compiled binaries, allowing security researchers and reverse engineers to understand program behavior without source code. The framework includes both programmatic APIs for scripting analysis tasks and a GUI debugger (vdb) for interactive exploration.

The package depends on pyasn1, pyasn1-modules, cxxfilt, msgpack, and pycparser to handle binary formats, name demangling, and data serialization. It targets Python 3.8 and later, with workspaces stored in msgpack format for cross-version compatibility. The project is actively maintained with recent commits and a growing user base, making it suitable for security research, malware analysis, and educational reverse engineering.

Use it for:

  • Analyze malware samples to understand their structure, behavior, and capabilities without executing them.
  • Perform static analysis on compiled binaries to identify vulnerabilities or suspicious code patterns.
  • Debug running processes interactively using the vdb debugger component.
  • Automate binary analysis tasks via Python scripts using the framework's programmatic API.
  • Learn assembly language and reverse engineering techniques with an interactive disassembler.

Worth the install?

AI-flagged interpretation of the facts on this page — verify before relying

Vivisect is a pure-Python disassembler, debugger, emulator, and static analysis framework for binary analysis and reverse engineering.

Yes. Vivisect is actively maintained, has low install friction, carries no known vulnerabilities, and is licensed permissively. It fills a genuine need for pure-Python binary analysis. Install it if you do reverse engineering, malware analysis, or security research; skip it if you need only simple disassembly or prefer established alternatives like IDA Pro or Ghidra.

Install

vivisect on PyPI

pip

pip install vivisect

uv

uv add vivisect

poetry

poetry add vivisect

Installing vivisect

Before you install

Low install friction with a pure-Python wheel distribution. Actively maintained with a recent release; last commit on 2026-08-14 and 136 days since the latest release indicate ongoing development.

License in practice

Licensed under Apache License 2.0 (permissive), allowing commercial and private use with minimal restrictions.

Quickstart

pip install vivisect

import vivisect
vw = vivisect.VivWorkspace()
vw.loadBinary('path/to/binary')

Requires Python 3.8 or later; Python 2 support ended before v1.0.0. Old Python 2 workspaces are not compatible with Python 3 without conversion.

Verify before relying

  • Whether the GUI components (available via pip install vivisect[gui]) are fully functional and documented.
  • Performance characteristics and scalability limits for large binaries or complex analysis tasks.
  • Specific symbolic execution capabilities and their scope compared to other frameworks.

Package facts

License Apache License 2.0 (permissive)
Python support supports the current Python release (>=3.8)
Install friction low — pure-Python wheel
Runtime dependencies 5 — pyasn1, pyasn1-modules, cxxfilt, msgpack, pycparser
Maintenance actively maintained — 136 days since the last release
Last repo commit
First released
Downloads 96,015/month — #13,235 on PyPI (30-day window, as of 2026-08-14)
Known vulnerabilities none known (OSV.dev, checked 2026-08-14)

Evidence: vivisect-1.3.2-py3-none-any.whl

License :: OSI Approved :: Apache Software LicenseProgramming Language :: Python :: 3.8Topic :: SecurityTopic :: Software Development :: DebuggersTopic :: Software Development :: Disassemblers

Tags

binary disassembler pythonstatic analysis frameworksymbolic execution debuggerreverse engineering toolsbinary analysis frameworkpython debugger emulatorcode analysis disassembly
reverse-engineeringbinary-analysismalware-research

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