NOT Binary Values
Quickly calculate bitwise NOT of a bunch of binary values. Runs entirely in your browser, so your data never leaves your device.
0 chars · 0 lines
Output
The result appears here as you type.
How to use NOT Binary Values
- 1. Paste the values to negate. Enter one binary number, or a whole batch of them, in the input pane. Each value gets the bitwise NOT applied on its own, so 1010 comes back as 0101.
- 2. Set the Separator. The Separator option tells the tool how your values are delimited, whether by newlines, spaces or commas. Matching it to your data keeps multi-value inputs from being treated as one long string.
- 3. Copy the negated values. Copy the complemented bit strings from the output pane. Applying the tool a second time returns the originals, a handy round-trip check that your separator setting was correct.
When to use NOT Binary Values
NOT Binary Values performs the unary bitwise complement, flipping each bit of every value in your list. Unlike the two-operand gates, NOT works value by value, which makes this the tool for negating whole columns of masks, captured signals or truth table rows in one operation.
- Complementing a batch of masks. A config migration needs the inverse of every bitmask in a settings file. Paste the masks one per line, set the Separator to newline and copy back the complements in order.
- Modeling an inverter stage. A logic pipeline exercise passes signals through a NOT stage between other gates. Compute that stage's output here before feeding the result into the AND or OR tools.
- Understanding why NOT 0 is 1. Newcomers to bitwise operators often confuse logical and bitwise negation. Demonstrating on padded values like 0001 shows every position flipping, which clears up the distinction quickly.
- Preparing ones' complement checksums. Internet-style checksums finish by taking the ones' complement of a running sum. Compute that final inversion here when working an IP header checksum example by hand.
Examples
NOT one value
Input
1010
Output
0101
NOT several values
Input
1010 1100
Output
0101 0011
About the NOT Binary Values tool
NOT Binary Values runs as plain JavaScript in your browser tab, with no server behind it. Quickly calculate bitwise NOT of a bunch of binary values. Whatever you put in stays on your device from start to finish.
The tool is part of EditSafely's Binary Tools section, 112 single-purpose utilities built around the same idea: open the page, get the result, keep your data to yourself.
You can shape the output with the Separator setting, and the result refreshes the moment you change it. 2 worked examples further down the page show exactly what the tool produces for real inputs.
That local-first design has practical benefits beyond privacy. The tool keeps working on a flaky connection once the page has loaded, results are instant because nothing round-trips to a server, and it is safe to use with confidential material.
Frequently asked questions
Is NOT Binary Values 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.