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Bitwise Calculator

AND, OR, XOR, NAND, NOR, XNOR, NOT and shift operations on two BigInt operands. Results shown in decimal, binary, octal and hex at once.

Free No signup Client-side Privacy friendly
Dec
Bin
Oct
Hex
Dec
Bin
Oct
Hex
Result —
Dec
Bin
Oct
Hex

How to use

  1. 1 Enter operands A and B in any base — prefix with 0b, 0o, 0x or paste decimal.
  2. 2 Pick an operation (AND / OR / XOR / NAND / NOR / XNOR / NOT / shifts).
  3. 3 Choose a bit width (8/16/32/64) for masked arithmetic, or Unbounded for raw BigInt.
  4. 4 Result is shown in all four bases at once. Copy the decimal form with one click.

Why use this tool

  • Nine operations including unsigned right shift (>>>) synthesised for BigInt.
  • Bit-width masking matches what a C / Rust / Java compiler would do.
  • Dec / Bin / Oct / Hex shown side-by-side for A, B and result.
  • Pure browser logic, zero dependencies.

Frequently asked questions

What is the difference between >> and >>>?

>> preserves the sign bit (arithmetic shift). >>> shifts in zeros from the left (logical shift). On a fixed bit-width the difference matters; on unbounded BigInt the two collapse to the same operation for non-negative values.

Why does NOT 12 give -13 in unbounded mode?

BigInt uses two's-complement of an infinite-width integer. ~12 = -13. Switch to 32-bit width to see the masked result fffffff3.

How are NAND / NOR / XNOR computed?

They are AND / OR / XOR followed by a bitwise NOT, then masked to the selected width.

Need to convert between bases without an operation?

Use our Number Base Converter — Decimal, Binary, Octal and Hexadecimal in a live 4-row grid.

Summary

Bitwise Calculator is a free developer utility by Zerethon Tools. AND, OR, XOR, NAND, NOR, XNOR, NOT and shift operations on two BigInt operands. Results shown in decimal, binary, octal and hex at once. Runs entirely in the browser — no signup, no upload.

Category
Developer
Pricing
Free
Privacy
Browser-based
Signup
Not required

Privacy

Your data never leaves your browser unless explicitly stated. Bitwise Calculator runs entirely client-side — no server upload, no logging, no tracking of your input.

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