Convert Binary to Octal
Quickly convert binary numbers to octal numbers. 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 Convert Binary to Octal
- 1. Paste your binary values. Enter one or more binary numbers into the input pane, such as register dumps or bit patterns from a datasheet. The converter reads each group and rewrites it in base 8 immediately.
- 2. Set the Separator. Type the character that divides multiple binary values in your input, such as a space or comma. The same separator is reused between the resulting octal numbers in the output.
- 3. Copy the octal output. Grab the converted values from the output pane and drop them into a Unix permissions file, embedded systems note, or wherever octal notation is expected.
When to use Convert Binary to Octal
Convert Binary to Octal turns raw binary strings into base 8 numbers without you doing the grouping-by-three math by hand. It is aimed at anyone working with older systems or file permission formats where octal is still the norm.
- Setting Unix file permissions. You have a binary permission mask from a script and need the equivalent chmod-style octal digits, like 0755, to paste into a deployment or Dockerfile.
- Reading legacy hardware documentation. An old microcontroller datasheet lists register values in binary but your notes use octal for consistency with its instruction set reference.
- Teaching number bases. You are walking through a computer science assignment on base conversion and want a quick way to check a student's binary-to-octal answer.
Examples
Convert
Input
1010
Output
12
About the Convert Binary to Octal tool
Convert Binary to Octal does its work locally, right in the browser. Quickly convert binary numbers to octal numbers. There is no upload step, no queue and no account, and your data never travels over the network.
It belongs to the Binary Tools collection on EditSafely, a set of 112 small, focused Binary utilities that share the same instant, private workspace.
You can shape the output with the Separator setting, and the result refreshes the moment you change it. A worked example further down the page shows exactly what the tool produces for a real input.
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 Binary to Octal 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.