Add a Suffix to a String
Append text to a string (or to every line of it). 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 Add a Suffix to a String
- 1. Paste the text to add a suffix to. Enter the string or list of lines you want text appended after. Works whether you paste one word or dozens of rows.
- 2. Enter the suffix. Type the characters to append, such as a semicolon, a comma, or a file extension. Turn on Add to every line to append it to each line rather than only the last.
- 3. Copy the suffixed result. Copy the output and drop it into your code editor, spreadsheet, or document wherever the appended text is needed.
When to use Add a Suffix to a String
Add a Suffix to a String appends a chosen piece of text either once, at the end, or repeatedly at the end of every line. It saves the manual, error-prone work of retyping the same ending across many rows.
- Terminating statements with semicolons. A block of assignment lines pasted from another language is missing trailing semicolons; appending ';' to every line makes it valid syntax before pasting it into a JavaScript or C-style file.
- Adding a file extension to a list. You have a plain list of base filenames and need '.jpg' appended to each one before feeding the list into a batch rename script or download tool.
- Building a comma-separated tail. A list of values needs a trailing comma added to every line except how you handle the last one, useful when assembling rows for a SQL VALUES clause by hand.
- Annotating a checklist. You want to append '(done)' to a single completed task line in a running notes file without retyping the whole line from scratch.
Examples
End every line with a semicolon
Input
a = 1 b = 2
Output
a = 1; b = 2;
About the Add a Suffix to a String tool
Add a Suffix to a String is a free online tool that works entirely inside your web browser. Append text to a string (or to every line of it). Because the processing happens on your own device, nothing you enter is uploaded, logged or stored anywhere.
This page is one of 159 String utilities on EditSafely. Each one does a single job well, and all of them follow the same rule: your input stays on your machine.
You can shape the output with 2 settings, including Suffix and Add to every line, 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.
Because nothing leaves your device, the tool is suitable for sensitive content such as internal documents, credentials or customer data. It also responds instantly, since every keystroke is handled on your own machine rather than by a remote API.
Frequently asked questions
Does Add a Suffix to a String 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.