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NAME rax2 -- Radare2 Base Converter SYNOPSIS rax2 [-abcCdDeEfFhHijkKnoqrsStuUvwxXzZ] [[expr] ...] DESCRIPTION A versatile calculator for numerical base conversions, string encoding/de- coding, and data representation within Radare2, supporting C-string encod- ing, hexpairs, Base64, and other formats. The most common numerical bases include binary (base 2) for direct machine code interaction, hexadecimal (base 16) for memory addresses and compact data representation, and decimal (base 10) for human-readable calculations and interpretations. OPTIONS -a Show ASCII table -b base Force output mode (numeric base) f floating point 2 binary 3 ternary 8 octal 10 decimal 16 hexadecimal -c Show hexadecimal C string from integer value -C Dump stdin to C array in stdout (xxd replacement) -d Print the result in decimal (base 10) -D Decode the input data using base64 -e Swap endianness -E Encode the input data using base64 -f Interpret the input number as a 32bit dword and display it us- ing IEEE 754 standard for floating point arithmetic -F Read C strings from stdin and output in hexpairs. Useful to load shellcodes -h Show usage help message -H Convert a string into a hash -i Convert LONG to/from IP ADDRESS -j Show the output in json format, the same as the r2 `?j 0x804` command -k Keep the same base as the input data -K Show randomart key asciiart for values or hexpairs -n Append newline to the decoded output for human friendliness -o Convert from octal string to char (rax2 -o 162 62) -q Be quiet. Show less information or drop the superfluous details in the output -r Show the same output as the r2's `? 0x804` command. When com- bined with -S (-rS) it will print r2 commands to write the ac- tual binary into radare2 -s Convert from hex pairs string to character (rax2 -s 43 4a 50) -S Convert from character to hex string (rax2 -S C J P) -t Convert epoch timestamp to human readable date format -u Convert given value to human readable units format -v Show version information -w Display the result as 16bit signed integer value -x Show hexpairs from integer value -X Convert a bit stream (an arbitrary sequence of 0 and 1 of any length) to hexadecimal. The result can be larger than 64bits -z Convert from character string to binary (rax2 -z hello) -Z Convert from binary string to string (rax2 -Z 01000101) USAGE Available variable types are: int -> hex rax2 10 hex -> int rax2 0xa -int -> hex rax2 -77 -hex -> int rax2 0xffffffb3 int -> bin rax2 b30 int -> ternary rax2 t42 bin -> int rax2 1010d ternary -> int rax2 1010dt float -> hex rax2 3.33f hex -> float rax2 Fx40551ed8 oct -> hex rax2 35o hex -> oct rax2 Ox12 (O is a letter) bin -> hex rax2 1100011b hex -> bin rax2 Bx63 ternary -> hex rax2 212t hex -> ternary rax2 Tx23 raw -> hex rax2 -S < /binfile hex -> raw rax2 -s 414141 EXAMPLES With no arguments, rax2 reads values from stdin. You can pass one or more values as arguments. $ rax2 33 0x41 0101b 0x21 65 0x5 You can do 'unpack' hexpair encoded strings easily. $ rax2 -s 41 42 43 ABC It supports some math operations: $ rax2 1+1 "0x5*101b+5" 2 30 Encode and decode binary file using base64: $ rax2 -E < /bin/ls > ls.b64 $ rax2 -D < ls.b64 > ls $ cmp /bin/ls ls && echo $? 0 Use -z/-Z to convert between binary and string: $ rax2 -z hello 01101000011001010110110001101100011011110000000000000000 $ rax2 -Z 01101000011001010110110001101100011011110000000000000000 hello Hash strings: $ rax2 -H linux osx linux: 0x5ccc1772 osx: 0x099bf94f Work with IP addresses: $ rax2 -i 127.0.0.1 0x0100007f $ rax2 -i 0x0100007f 127.0.0.1 It is a very useful tool for scripting, so you can read floating point val- ues, or get the integer offset of a jump or a stack delta when analyzing programs. ENVIRONMENT rax2 does not use any environment variables. SEE ALSO radare2(1) WWW https://www.radare.org AUTHORS pancake <pancake@nopcode.org> Jul 10, 2025 RAX2(1)
NAME | SYNOPSIS | DESCRIPTION | OPTIONS | USAGE | EXAMPLES | ENVIRONMENT | SEE ALSO | WWW | AUTHORS
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