Add a Suffix to Text Lines
Append a suffix to every line of text. 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 Text Lines
- 1. Paste the lines you want to append to. Enter one item per line, such as a list of values that need a trailing punctuation mark or a set of statements that each need a terminator character.
- 2. Set the Suffix. Type the exact text to add to the end of every line, such as a comma for a code array, a semicolon for statements, or a period for readability.
- 3. Leave blank lines alone with Skip empty lines. Enable this option so blank lines are left untouched instead of getting the suffix appended, keeping intentional line breaks clean.
- 4. Copy the suffixed lines. Copy the result into your code file, data file, or wherever the line-by-line suffix is needed.
When to use Add a Suffix to Text Lines
Add a Suffix to Text Lines appends the same text to the end of every line in a block, which is the fastest way to add trailing punctuation, terminators, or a repeated ending across a whole list at once. Use it whenever every row of a list needs the same closing character.
- Adding trailing commas to build a code array. A list of values pasted from elsewhere needs a trailing comma on every line to become valid array syntax in most programming languages. Appending a comma to each line does that instantly.
- Terminating SQL statements with a semicolon. A batch of SQL statements copied from a query log is missing the trailing semicolon each one needs before being run as a script. Appending it to every line fixes the whole batch.
- Adding a consistent closing note to a list of reminders. A to-do list needs the same short closing tag appended to every item, like a due-date placeholder, before being pasted into a project management tool.
- Standardizing punctuation across a list of bullet points. A style guide requires every bullet point in a document to end with a period. Appending it to every line ensures consistency across the entire list.
Examples
Append a comma to each line
Input
one two
Output
one, two,
About the Add a Suffix to Text Lines tool
Add a Suffix to Text Lines runs as plain JavaScript in your browser tab, with no server behind it. Append a suffix to every line of text. Whatever you put in stays on your device from start to finish.
The tool is part of EditSafely's Text Tools section, 211 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 Suffix and Skip empty lines, 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
Does Add a Suffix to Text Lines 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.