Right-pad a String
Pad the right side of every line to a fixed length. 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 Right-pad a String
- 1. Paste your lines. Enter the values you want padded into the input pane, one per line, such as short labels like name and role that need to reach the same width.
- 2. Set the target length. Enter the final length each line should reach in Pad to length. Lines shorter than this get padding added at the end; longer lines are left unchanged.
- 3. Choose the pad character. Type the character to repeat in Pad with (first character), such as a period for a dotted leader, or a space for simple column filling.
- 4. Copy the padded result. Copy the fixed-width lines from the output pane into a report, an aligned table, or any fixed-width column layout.
When to use Right-pad a String
Right-pad a String adds a repeated character to the end of every line until it reaches a fixed length, useful for aligning labels or building fixed-width columns. Reach for it whenever text needs a consistent trailing width rather than a leading one.
- Creating a dotted leader for a table of contents. A plain-text table of contents wants each entry name followed by a row of dots leading to the page number. Right-padding each label with a period produces that classic leader style.
- Aligning labels before a colon in a settings display. A monospace settings screen shows labels like name and role that need to reach the same width before a colon and value follow. Right-padding with spaces achieves that alignment.
- Building a fixed-width text file format. An old data exchange format expects each field padded to an exact length on the right. Right-padding your values with spaces produces the format the receiving system expects.
- Preparing a monospace column for a code comment. You're writing an aligned comment block in code where several short identifiers need consistent trailing width before a description column starts.
Examples
Pad labels with dots
Input
name role
Output
name.... role....
About the Right-pad a String tool
Right-pad a String runs as plain JavaScript in your browser tab, with no server behind it. Pad the right side of every line to a fixed length. Whatever you put in stays on your device from start to finish.
The tool is part of EditSafely's String Tools section, 159 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 2 settings, including Pad to length and Pad with (first 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.
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 Right-pad a String 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.