Next release will be 5.5.4, current git is 5.5.3 and the See the Release downloads page.

r2 is a rewrite from scratch of radare. It provies a set of libraries, tools and plugins to ease reverse engineering tasks.

The radare project started as a simple command-line hexadecimal editor focused on forensics, over time more features were added to support a scriptable command-line low level tool to edit from local hard drives, kernel memory, programs, remote gdb servers and be able to analyze, emulate, debug, modify and disassemble any binary.

• Install r2 from Git (Clone the repo and run sys/install.sh) or use pip install r2env
• Read the Official radare2 book
• COMMUNITY.md engagement
• CONTRIBUTING.md general rules
• DEVELOPERS.md to improve r2 for your needs
• SECURITY.md on vulnerability report instructions
• USAGE.md for an introductory session
• INSTALL.md instructions

git clone https://github.com/radareorg/radare2
radare2/sys/install.sh

Most of the plugins you need may be available in the stock r2 installation, but you can find more in the r2pm package manager.

r2pm update          # initialize and update the package database
r2pm install [pkg]   # installs the package

Some of the most installed packages are:

• radius fast symbolic execution engine based on boolector and r2
• r2ghidra the native ghidra decompiler plugin: pdg command
• esilsolve symbolic execution r2 plugin based on esil and z3
• r2dec decompiler based on r2 written in js pdd
• r2frida the frida io plugin r2 frida://0
• iaito - official graphical interface (Qt)

Windows (since XP), Linux, Darwin, GNU/Hurd, Apple's {Mac,i,iPad,watch}OS, Android [Dragonfly, Net, Free, Open] BSD, Z/OS, QNX, SerenityOS, Solaris, Haiku, Vinix, FirefoxOS.

i386, x86-64, ARM, MIPS, PowerPC, SPARC, RISC-V, SH, m68k, m680x, AVR, XAP, S390, XCore, CR16, HPPA, ARC, Blackfin, Z80, H8/300, V810, V850, CRIS, XAP, PIC, LM32, 8051, 6502, i4004, i8080, Propeller, Tricore, CHIP-8, LH5801, T8200, GameBoy, SNES, SPC700, MSP430, Xtensa, NIOS II, Java, Dalvik, WebAssembly, MSIL, EBC, TMS320 (c54x, c55x, c55+, c66), Hexagon, Brainfuck, Malbolge, whitespace, DCPU16, LANAI, MCORE, mcs96, RSP, SuperH-4, VAX, AMD Am29000.

ELF, Mach-O, Fatmach-O, PE, PE+, MZ, COFF, OMF, TE, XBE, BIOS/UEFI, Dyldcache, DEX, ART, CGC, Java class, Android boot image, Plan9 executable, ZIMG, MBN/SBL bootloader, ELF coredump, MDMP (Windows minidump), WASM (WebAssembly binary), Commodore VICE emulator, QNX, WAD, OFF, TIC-80 Game Boy (Advance), Nintendo DS ROMs and Nintendo 3DS FIRMs, various filesystems.

There are many ways to contribute to the project, join the IRC/Matrix/Telegram channels, check out the github issues or grep for the TODO comments in the source. To contribute with code, create a branch in your forked repository and push a pull request, follow the coding style and ensure it passes the tests with the r2r tool to run the tests that are under the tests/ subdirectory.

For more details read the CONTRIBUTING.md file.

To learn more about r2 we encourage you to watch youtube talks from r2con conference. As well as reading blogposts, slides or read the Official radare2 book, You can reach us in the following chats:

• irc.libera.chat #radare #radare_side
• Matrix #radare:matrix.org
• Telegram and the Side Channel
• Discord server
• Twitter: @radareorg
• Website: https://www.radare.org/