Left-pad Unicode
Quickly left-pad Unicode text with any character. 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 Left-pad Unicode
- 1. Paste the text to pad. Enter the Unicode text you want padded into the input pane. Multi-byte characters like accented letters or emoji are counted as single code points, not bytes.
- 2. Set Pad to length and Pad character. Enter the total code point length you want the result to reach and which character to repeat on the left. If the text is already that long or longer, nothing is added.
- 3. Copy the padded text. The tool repeats your pad character on the left until the text reaches the target length, then leaves the copy button ready with the aligned result.
When to use Left-pad Unicode
Left-pad Unicode adds a repeated character to the start of your text until it reaches a target length, counted in code points rather than bytes. Use it to align Unicode strings, including ones with accented letters or emoji, in a fixed-width column.
- Aligning IDs with mixed-width characters. A report lists reference codes where some contain accented letters and some do not, and a byte-based pad would misalign them. Left-padding by code point count keeps every row the same visual width.
- Formatting a fixed-width text table for a terminal. A CLI tool prints a table where one column holds names with non-ASCII characters. Left-padding those values to a set length keeps the columns lined up correctly.
- Zero-padding an identifier containing symbols. An internal code format mixes digits with a special separator symbol and needs consistent length. Left-padding with zero fills short codes out to the required width.
Examples
Left-pad to 5 with 0
Input
café
Output
0café
About the Left-pad Unicode tool
Left-pad Unicode does its work locally, right in the browser. Quickly left-pad Unicode text with any character. There is no upload step, no queue and no account, and your data never travels over the network.
It belongs to the Unicode Tools collection on EditSafely, a set of 98 small, focused Unicode utilities that share the same instant, private workspace.
You can shape the output with 2 settings, including Pad to length (code points) and Pad character, and the result refreshes the moment you change one. 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 Left-pad Unicode 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.