Everyone knows IDA and Ollydbg, but not everyone has 2700€ to spend on a software, nor wants to trust/use closed-source applications. But who uses radare2 as a replacement ? Cool projects Some reverse-engineering/security-oriented projects are using radare2, thanks to its convenient license (GPL/LGPL). some coreboot developers are using radare2, since it supports not only x86 but also 8051, H8, CR16, ARM, used as embedded controllers. Droid Developers / MILEDROPEDIA using radare2 for the reversing baseband DSP firmware/RTOS (TMS320C55x+ architecture, unsupported in IDA Pro).