Join Binary Values
Join multiple smaller binary numbers into a single binary. 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 Join Binary Values
- 1. Paste the pieces to join. Enter the smaller binary values in the input pane, separated by spaces or newlines, in the order they should appear. For example, 10101100 followed by 11110000.
- 2. See the concatenation. The tool strips the separators and glues the pieces end to end, producing 1010110011110000 from the example. Nothing is reordered or padded, so the result is a pure concatenation of your inputs.
- 3. Copy the combined value. Copy the single joined bit string from the output pane. If the pieces came from the split tool, joining them here reconstructs the original value exactly.
When to use Join Binary Values
Join Binary Values concatenates several short bit strings into one continuous binary number. Data rarely arrives in one piece: bytes come out of hex dumps individually, protocol fields are documented separately, and split tools produce fragments. This puts the pieces back together in order without you counting positions in a text editor.
- Reassembling a multi-byte field. A packet capture shows a 32-bit sequence number as four separate bytes. Paste the four octets in wire order and join them to get the full-width value for decoding.
- Composing a register value from fields. A control register is documented as a 3-bit mode, a 4-bit divider and a flag. Write each field separately, join them in layout order and you have the value to program.
- Undoing a chunked display. Logic analyzer exports often group bits in fours or eights for readability. Join the groups back into one stream before feeding it to a converter that expects unbroken binary.
- Building long test inputs from parts. A parser test needs a 64-bit pattern with known sections: a header of ones, a body of alternating bits, a zero tail. Author each part alone, then join them into the final vector.
Examples
Join
Input
10101100 11110000
Output
1010110011110000
About the Join Binary Values tool
Join Binary Values runs as plain JavaScript in your browser tab, with no server behind it. Join multiple smaller binary numbers into a single binary. 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.
There is nothing to configure. Provide the input and the result appears on its own. A worked example further down the page shows exactly what the tool produces for a real input.
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
Does Join Binary Values 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.