Convert Unsigned Integer to Signed
Reinterpret unsigned integers as signed via two's complement. 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 Convert Unsigned Integer to Signed
- 1. Paste the unsigned integers. Enter one or more unsigned integers, one per line or separated by spaces. Values in the upper half of the chosen bit width are the interesting case here.
- 2. Choose the bit width. Select 8-bit, 16-bit, 32-bit or 64-bit to match where the value originated. The bit width determines the threshold above which a value reinterprets as negative under two's complement.
- 3. Copy the signed result. Copy the resulting signed value, for example 255 becoming -1 at 8-bit, and paste it wherever a program expects a signed interpretation of the same bit pattern.
When to use Convert Unsigned Integer to Signed
Convert Unsigned Integer to Signed reinterprets an unsigned value as signed using two's complement, at the bit width you specify. Convert Unsigned Integer to Signed is aimed at developers moving raw values between typed languages or protocols with different signedness conventions.
- Porting a value between an unsigned and signed field. A protocol field is unsigned but your language stores it in a signed variable. Convert a captured value here to confirm what your code will actually interpret it as.
- Explaining why a large unsigned value looks negative in code. A byte value of 255 read as signed 8-bit prints as -1, which confuses newcomers. Show the conversion here to make the two's complement behavior concrete.
- Debugging a data format conversion bug. A file format stores unsigned 16-bit or 32-bit values but your parser reads them as signed, producing unexpected negative numbers. Verify the expected signed value here.
- Reading raw sensor or hardware register output. A hardware register reports an unsigned reading but your application logic expects signed values, such as for temperature or position deltas. Convert it here before further processing.
Examples
Unsigned 255 as 8-bit signed
Input
255
Output
-1
Unsigned 128 as 8-bit signed
Input
128
Output
-128
About the Convert Unsigned Integer to Signed tool
Convert Unsigned Integer to Signed does its work locally, right in the browser. Reinterpret unsigned integers as signed via two's complement. There is no upload step, no queue and no account, and your data never travels over the network.
It belongs to the Integer Tools collection on EditSafely, a set of 133 small, focused Integer utilities that share the same instant, private workspace.
You can shape the output with the Bit width 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.
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
Does Convert Unsigned Integer to Signed cost anything?
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?
No data leaves your device. The whole tool is JavaScript that runs inside your browser tab, so there is no upload, no server-side processing and no log of what you did. If you disconnect from the internet after the page loads, it keeps working.
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?
Nothing to install and no account needed. Open the page in any up-to-date browser, including on a phone or tablet, and the tool is ready.
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.