The visual mode is a more user-friendly interface alternative to radare2's command-line prompt. It uses HJKL or arrow keys to move around data and code, has a cursor mode for selecting bytes, and offers numerous key bindings to simplify debugger use.
To enter visual mode, use
V command. To exit from it back to command line, press
print modes aka Panels
The Visual mode uses "print modes" which are basically different panel that you can rotate. By default those are:
↻ Hexdump panel -> Disassembly panel → Debugger panel → Hexadecimal words dump panel → Hex-less hexdump panel → Op analysis color map panel → Annotated hexdump panel ↺.
Notice that the top of the panel contains the command which is used, for example for the disassembly panel:
[0x00404890 16% 120 /bin/ls]> pd $r @ entry0
To see help on all key bindings defined for visual mode, press
Visual mode help: ? show this help ?? show the user-friendly hud $ toggle asm.pseudo % in cursor mode finds matching pair, otherwise toggle autoblocksz @ redraw screen every 1s (multi-user view), in cursor set position ! enter into the visual panels mode _ enter the flag/comment/functions/.. hud (same as VF_) = set cmd.vprompt (top row) | set cmd.cprompt (right column) . seek to program counter " toggle the column mode (uses pC..) / in cursor mode search in current block :cmd run radare command ;[-]cmt add/remove comment 0 seek to beginning of current function [1-9] follow jmp/call identified by shortcut (like ;) ,file add a link to the text file /*+- change block size,  = resize hex.cols </> seek aligned to block size (seek cursor in cursor mode) a/A (a)ssemble code, visual (A)ssembler b toggle breakpoint B enumerate and inspect classes c/C toggle (c)ursor and (C)olors d[f?] define function, data, code, .. D enter visual diff mode (set diff.from/to) e edit eval configuration variables f/F set/unset or browse flags. f- to unset, F to browse, .. gG go seek to begin and end of file (0-$s) hjkl move around (or HJKL) (left-down-up-right) i insert hex or string (in hexdump) use tab to toggle mK/'K mark/go to Key (any key) M walk the mounted filesystems n/N seek next/prev function/flag/hit (scr.nkey) o go/seek to given offset O toggle asm.esil p/P rotate print modes (hex, disasm, debug, words, buf) q back to radare shell r refresh screen / in cursor mode browse comments // browse anal info and comments / in cursor mode = remove byte R randomize color palette (ecr) sS step / step over t browse types T enter textlog chat console (TT) uU undo/redo seek v visual function/vars code analysis menu V (V)iew graph using cmd.graph (agv?) wW seek cursor to next/prev word xX show xrefs/refs of current function from/to data/code yY copy and paste selection z fold/unfold comments in disassembly Z toggle zoom mode Enter follow address of jump/call Function Keys: (See 'e key.'), defaults to: F2 toggle breakpoint F4 run to cursor F7 single step F8 step over F9 continue,