Best GEF (pronounced ʤɛf - 'Jeff') Alternatives & Competitors in 2026
Top picks: Nightwing DejaVM, PinCTF, angr — plus 45 more compared.
Security OperationsTop picks: Nightwing DejaVM, PinCTF, angr — plus 45 more compared.
Security OperationsGEF (pronounced ʤɛf - 'Jeff') is a free Offensive Security tool. Security professionals most commonly compare it with Nightwing DejaVM, PinCTF, angr, PINCE, and Red Balloon Security RASPUTIN. All 48 alternatives are matched by shared capabilities, tags, and NIST CSF 2.0 coverage.
A closer look at the 8 most relevant alternatives and competitors to GEF (pronounced ʤɛf - 'Jeff'), including their key features and shared capabilities.
Whole-system emulation environment for software dev, debugging, testing & security
PinCTF is a Python wrapper tool that uses Intel's Pin framework to instrument binaries and count instructions for reverse engineering analysis.
angr is a Python-based binary analysis framework that provides disassembly, symbolic execution, and program analysis capabilities for cross-platform binary examination.
PINCE is a front-end/reverse engineering tool for the GNU Project Debugger (GDB), focused on games, with CheatEngine-like value type support and memory searching capabilities.
Automated hardware reversing platform using robotics for embedded device analysis
AI agent platform for automating offensive security operations and evals.
AI-assisted vulnerability research and advanced offensive cyber tooling firm.
R&D firm providing cyber defense & operational tech for DoD and DHS.
Whole-system emulation environment for software dev, debugging, testing & security
PinCTF is a Python wrapper tool that uses Intel's Pin framework to instrument binaries and count instructions for reverse engineering analysis.
angr is a Python-based binary analysis framework that provides disassembly, symbolic execution, and program analysis capabilities for cross-platform binary examination.
PINCE is a front-end/reverse engineering tool for the GNU Project Debugger (GDB), focused on games, with CheatEngine-like value type support and memory searching capabilities.
Automated hardware reversing platform using robotics for embedded device analysis
AI agent platform for automating offensive security operations and evals.
AI-assisted vulnerability research and advanced offensive cyber tooling firm.
R&D firm providing cyber defense & operational tech for DoD and DHS.
AI agent for in-depth binary analysis and reverse engineering assistance.
MCP server enabling AI agents to autonomously run 150+ security tools
An open source machine code decompiler that converts binary executables into readable C source code across multiple architectures and file formats.
Fridump is an open source memory dumping tool that uses the Frida framework to extract accessible memory addresses from iOS, Android, and Windows applications for security testing and analysis.
A Java bytecode assembler and disassembler toolkit that converts classfiles to human-readable format and provides decompilation capabilities for reverse engineering Java applications.
A Go-based crash analysis tool that processes and reproduces crash files from fuzzing tools like AFL with multiple debugging engines and output formats.
Dynamic instrumentation toolkit for developers, reverse-engineers, and security researchers.
A backend agnostic debugger frontend for debugging binaries without source code access.
A debugger tool for reverse engineers, crackers, and security analysts, with a user-friendly debugging UI and custom agent support.
JD-GUI is a graphical Java decompiler that reconstructs and displays source code from compiled ".class" files for reverse engineering and code analysis purposes.
steg86 is a steganographic tool that hides information within x86 and AMD64 binary executables without affecting their performance or file size.
Threat emulation tool for adversary simulations and red team operations
Private training course for IoT device pentesting and exploitation
DNS reconnaissance tool checking DNS records, subdomains, and third-party svcs
FourCore ATTACK is an adversary emulation platform to manage cyber risk with evidence
Post-exploitation threat emulation platform for red team operations.
Red team toolkit for EDR evasion, initial access, and post-exploitation.
Bundled offensive security suites combining pen testing, red teaming, and VM.
Offensive security firm offering AI pentesting, credential monitoring & compliance.
Boutique security firm offering red team, OSINT, and adversary simulation services.
CLI cheatsheet for Red Specter's 30-tool offensive security platform.
An AI-powered Google Dorking tool that helps create effective search queries to uncover sensitive information on the internet.
A specification/framework for extending default C2 communication channels in Cobalt Strike
An open-source framework that enables building and deploying AI security tools
GraphSpy is a browser-based post-exploitation tool for Azure Active Directory and Office 365 environments that enables token management, reconnaissance, and interaction with Microsoft 365 services.
An Android port of the Radamsa fuzzing tool compiled with Android NDK to support Android ABIs for security testing on mobile platforms.
A covert channel technique that uses WebDAV protocol features to deliver malicious payloads and establish C2 communication while bypassing security controls.
LinksDumper extracts links and endpoints from HTTP responses to support web application security testing and reconnaissance activities.
A Linux command-line tool that allows you to kill in-progress TCP connections based on a filter expression, useful for libnids-based applications that require a full TCP 3-way handshake for TCB creation.
A Python script that converts shellcode into a PE32 or PE32+ file.
Semi-tethered jailbreak for iPhone 5s to iPhone X, running iOS 12.0 and up, using the 'checkm8' bootrom exploit.
Tcpreplay is a suite of Open Source utilities for editing and replaying captured network traffic.
LeakIX is a red-team search engine that indexes mis-configurations and vulnerabilities online.
PyBOF is a Python library that enables in-memory loading and execution of Beacon Object Files (BOFs) with support for argument passing and function targeting.
Parrot Security OS is a comprehensive, secure, and customizable operating system for cybersecurity professionals, offering over 600+ tools and utilities for red and blue team operations.
A collection of Python scripts for password spraying attacks against Lync/S4B & OWA, featuring Atomizer, Vaporizer, Aerosol, and Spindrift tools.
A command that builds and executes command lines from standard input, allowing for the execution of commands with multiple arguments.
Common questions security professionals ask when evaluating alternatives and competitors to GEF (pronounced ʤɛf - 'Jeff').
The most popular alternatives to GEF (pronounced ʤɛf - 'Jeff') include Nightwing DejaVM, PinCTF, angr, PINCE, and Red Balloon Security RASPUTIN. These Offensive Security tools offer similar capabilities and are frequently compared by security professionals evaluating their options.
