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Unicorn Engine Alternatives
Similar projects and alternatives to Unicorn Engine
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QEMU
Official QEMU mirror. Please see https://www.qemu.org/contribute/ for how to submit changes to QEMU. Pull Requests are disabled. Please only use release tarballs from the QEMU website.
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ImHex
🔍 A Hex Editor for Reverse Engineers, Programmers and people who value their retinas when working at 3 AM.
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capstone
Capstone disassembly/disassembler framework for ARM, ARM64 (ARMv8), Alpha, BPF, Ethereum VM, HPPA, LoongArch, M68K, M680X, Mips, MOS65XX, PPC, RISC-V(rv32G/rv64G), SH, Sparc, SystemZ, TMS320C64X, TriCore, Webassembly, XCore and X86.
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MicroPython
MicroPython - a lean and efficient Python implementation for microcontrollers and constrained systems
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capstone
Discontinued Capstone disassembly/disassembler framework: Core (Arm, Arm64, BPF, EVM, M68K, M680X, MOS65xx, Mips, PPC, RISCV, Sparc, SystemZ, TMS320C64x, Web Assembly, X86, X86_64, XCore) + bindings. [Moved to: https://github.com/capstone-engine/capstone] (by aquynh)
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nyxstone
Nyxstone: assembly / disassembly library based on LLVM, implemented in C++ with Rust and Python bindings, maintained by emproof.com
NOTE:
The number of mentions on this list indicates mentions on common posts plus user suggested alternatives.
Hence, a higher number means a better Unicorn Engine alternative or higher similarity.
Unicorn Engine discussion
Unicorn Engine reviews and mentions
Posts with mentions or reviews of Unicorn Engine.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2026-06-02.
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Capstone – lightweight multi-platform, multi-architecture disassembly framework
As one who helped improved Capstone and its even more wonderful partner, Unicorn, I actually found an exploit in QEMU using Capstone/Unicorn.
Unicorn is a nearly-true software-based CPU emulator for ARM, AArch64, M68K, Mips, Sparc, PowerPC, RiscV, S390x, TriCore, X86 architecture.
This pair-up is arguably the best set of software tools out there.
QEMU? No worry, that's way back in QEMU v1.4 days (Intel IMUL lb/DWORD OPC_IMUL_GvEvlb opcode)
Fabrice fixed it then and is still blazing at QEMU 10.0 now. Ain't he awesome?
https://github.com/unicorn-engine/unicorn/issues/364
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Analyzing Akamai BMP 4.1.3 - Part 1 - For Noobs Learn
2.3. Script to get the decompressed libakamaibmp.so I used Unicorn Engine
- Unicorn Engine 2.1.2
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What Every Hacker Should Know About TLB Invalidation [pdf]
And us machine emulators too, like Fabrice Bellard (QEMu) and me (and my OP post detailed the failing of emulated TLB in QEMU as discovered in Unicorn emulator).
Unicorn emulator - https://github.com/unicorn-engine/unicorn
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Capstone Disassembler Framework
If you find Capstone interesting, check out the Unicorn Engine.
https://github.com/unicorn-engine/unicorn
Also, if anyone is interested in an example of using capstone for basic disassembly and analysis, here is a link to my capstool project.
https://github.com/alexander-hanel/capstool
- Unicorn – lightweight multi-platform, multi-architecture CPU emulator framework
- Unicorn: Lightweight multi-platform, multi-architecture CPU emulator framework
- 86Box v4.0
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Show HN: Tetris, but the blocks are ARM instructions that execute in the browser
OFRAK Tetris is a project I started at work about two weeks ago. It's a web-based game that works on desktop and mobile. I made it for my company to bring to events like DEF CON, and to promote our binary analysis and patching framework called OFRAK.
In the game, 32-bit, little-endian ARM assembly instructions fall, and you can modify the operands before executing them on a CPU emulator. There are two segments mapped – one for instructions, and one for data (though both have read, write, and execute permissions). Your score is a four byte signed integer stored at the virtual address pointed to by the R12 register, and the goal is to use the instructions that fall to make the score value in memory as high as possible. When it's game over, you can download your game as an ELF to relive the glory in GDB on your favorite ARM device.
The CPU emulator is a version of Unicorn (https://www.unicorn-engine.org/) that has been cross-compiled to WebAssembly (https://alexaltea.github.io/unicorn.js/), so everything on the page runs in the browser without the need for any complicated infrastructure on the back end.
Since I've only been working on this for a short period of time leading up to its debut at DEF CON, there are still many more features I'd eventually like to implement. These include adding support for other ISAs besides ARM, adding an instruction reference manual, and lots of little cleanups, bug fixes, and adjustments.
My highest score is 509,644,979, but my average is about 131,378.
I look forward to feedback, bug reports, feature requests, and strategy discussions!
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It Takes 6 Days to Change 1 Line of Code
Entails hundreds of hours of single-stepping through that opcode in Linux kernel using an indirect operand pointing toward its own opcode (self-modifying code).
Even the extraordinaire Fabrice Bellard (author of QEMU) admitted that it is broke and did a total rewrite, which fixed tons of other issues.
https://github.com/unicorn-engine/unicorn/issues/364
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www.saashub.com | 9 Jun 2026
Stats
Basic Unicorn Engine repo stats
21
9,003
7.9
26 days ago
unicorn-engine/unicorn is an open source project licensed under GNU General Public License v3.0 only which is an OSI approved license.
The primary programming language of Unicorn Engine is C.
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