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NAND Hex Numbers

Quickly calculate bitwise NAND of a bunch of hex numbers (inverted within the widest operand's bit-width). Runs entirely in your browser, so your data never leaves your device.

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Output

The result appears here as you type.

How to use NAND Hex Numbers

  1. 1. Paste the operands. Enter the hex values to combine, separated by spaces, into the input pane. Two operands is typical, though the operation folds across as many values as you provide.
  2. 2. Know how the width is chosen. No options here: the values are ANDed together, then the result is inverted within the widest operand's bit-width. That is why ff NAND 0f yields f0 instead of an endless run of leading f digits.
  3. 3. Copy the NAND result. The combined value sits in the output pane in hex. Copy it into your logic simulation, test vector file or homework solution, and rerun with different operands to explore the truth behavior.

When to use NAND Hex Numbers

NAND Hex Numbers applies the NOT-AND operation bit by bit across hex operands, masking the inversion to the widest input's width. NAND is the workhorse gate of digital logic, and this tool lets you evaluate it on realistic word-sized values without translating anything into binary first.

  • Generating expected values for gate-level tests. A Verilog testbench for a NAND-based ALU path needs known-correct outputs for chosen hex inputs. Compute each expectation here and paste them into the assertion table.
  • Following NAND-only circuit constructions. A logic design course shows how AND, OR and NOT can all be built from NAND alone. Working the intermediate hex values through this tool lets you follow each construction numerically.
  • Decoding firmware that uses NAND idioms. Reverse-engineered code combines two masks and inverts the result in one step. Reproducing that NAND on the actual constants shows which flag bits the routine really produces.

Examples

NAND two bytes

Input

ff 0f

Output

f0

NAND masks to the wider operand

Input

ff f

Output

f0

About the NAND Hex Numbers tool

NAND Hex Numbers does its work locally, right in the browser. Quickly calculate bitwise NAND of a bunch of hex numbers (inverted within the widest operand's bit-width). There is no upload step, no queue and no account, and your data never travels over the network.

It belongs to the Hex Tools collection on EditSafely, a set of 108 small, focused Hex utilities that share the same instant, private workspace.

There is nothing to configure. Provide the input and the result appears on its own. 2 worked examples further down the page show exactly what the tool produces for real inputs.

Running locally also makes the tool fast and dependable: results appear as you type or drop a file, there is no server outage that can take it down mid-task, and confidential data can be processed without a second thought.

Frequently asked questions

Is NAND Hex Numbers free to use?

Yes, it is completely free. All 2,658 tools on EditSafely work without an account, a subscription or usage limits.

Is it safe to paste sensitive or confidential data?

Everything happens locally. Your browser downloads the tool's code once, then does all the processing itself; nothing you enter is transmitted, stored or logged. You can even go offline after the page loads and it will still work.

How much text can I process at once?

There is no fixed limit. Because the work happens on your own device rather than on a shared server, the practical ceiling is your machine's memory, which comfortably handles inputs far larger than typical online tools allow.

Do I need to sign up or install anything?

No. The tool works in any modern browser on desktop, tablet or phone. There is no account to create, no extension to add and no software to install.

How do I use the result?

The output panel has a one-click copy button, and you can keep refining the input while you work; the result updates in place as you type.

Related tools

All Hex Tools →

AND Hex Numbers

Quickly calculate bitwise AND of a bunch of hex numbers.

NOR Hex Numbers

Calculate bitwise NOR of hexadecimal numbers (inverted within the widest operand's bit-width).

XNOR Hex Numbers

Calculate bitwise XNOR of hexadecimal numbers (inverted within the widest operand's bit-width).

NOT Hex Numbers

Calculate bitwise NOT of hexadecimal numbers (each inverted within its own bit-width).