Use this operation to inspect or transform integer bit patterns in protocol fields, masks, flags, compact data structures, or programming exercises.

Value

Required integer input.

Bit width

Required integer input.

Reverse the bits of an integer within a specified bit width. The tool evaluates the supplied inputs together and returns the named outputs below; it does not infer omitted operating conditions or change the units shown.^[1]

Reversed value

The resulting reversed value returned as an integer.

• JavaScript bitwise operators coerce values to signed 32-bit integers, and shift counts use only the low five bits. Decimal display can hide the two's-complement pattern, so inspect an unsigned or binary representation when individual bits matter.
• Use finite inputs in the displayed units and preserve more precision than the final presentation requires. Independently verify safety-critical, financial, compliance, or production decisions.

Use explicit masks and a documented bit width. For values wider than 32 bits, use a BigInt-based implementation or a byte-array tool instead of relying on JavaScript number bitwise coercion.

• Bitwise Left Shift

  Shift an integer's 32-bit form left by the given number of bits.

• Bitwise Right Shift

  Shift an integer's 32-bit form right by the given number of bits, preserving the sign.

• Bitwise NOT

  Invert every bit of an integer's 32-bit form.