An in-console byte editor.


Table of Contents


It's a byte editor. It's console-based. I don't think it sucks.


  • Hexadecimal, Binary and Decimal views
  • Configurable controls
  • Vi-ish environment
  • Regex-ish searching

Planned Features

  • Extensibility with Python
  • Relative-sequence-based searching (ie. You don't know the initial value but you know the [pro|pre]ceeding relative bytes)
  • Data marking: Set a byte or chunk as a checksum, pointer, etc.
  • Scriptability: Use the functionality of sbyte just by running a script.



cargo install sbyte
sbyte <filename>


The current defaults (while prone to change until v1.0.0 is released) are as follows:

While in default mode

  • h Move Cursor Left
  • j Move Cursor Down
  • k Move Cursor Up
  • l Move Cursor Right
  • H Decrease length of selection
  • J Increase length of selection by a line
  • K Decrease length of selection by a line
  • L Increase length of selection
  • R Jump to index denoted by selection (Big Endian)
  • T Jump to index denoted by selection (Little Endian)
  • p paste
  • x cut selection
  • u undo action
  • ctrl+r redo action
  • / search
  • o switch to mode: overwrite
  • i switch to mode: insert
  • : switch to mode: shell
  • = cycle between hex/binary/decimal views

While in overwrite mode

Note: Depending on which view is enabled, different numerals will be active.

  • 0-9 a-f overwrite digit
  • p paste
  • x cut selection
  • h Move sub-cursor to next digit
  • l Move sub-cursor to previous digit
  • esc return to default mode

Shell Commands

  • find <pattern> Search for, and jump to, a pattern
  • fr <pattern> <replacewith> Search for all instances of pattern and replace them
  • insert <pattern> Insert pattern
  • overwrite <pattern> Overwrite with pattern
  • q Quit
  • w Save
  • wq Save & Quit

Bitwise Masks

  • and <mask>
  • nand <mask>
  • or <mask>
  • nor <mask>
  • xor <mask>
  • not

Regex modifications

Regex is supported in searches, however some modifications have been made to make it more useful in the context of all bytes rather than just the human-readable ones.

Byte Wildcarding

Use a . to indicate a wildcard within a byte.


This will find all bytes from \x90 to \x9F:

find \x9.

This can also be done in binary:

find \b1001....

and doesn't need to be sequential

find \b100100.0

will match \x90 & \x92