What is the Add Prefix and Suffix to Lines?
Add text before and/or after every line. Adding the same text before or after every line turns raw lists into formatted bullets, quoted values or code in seconds.

How to use the Add Prefix and Suffix to Lines
- Paste or type your your text into the box (a sample is pre-filled so you can see how it works).
- Results update automatically as you type; you can also press Calculate.
- Read the output: result.
- Use the 📊 chart to see the result visually, then copy or share it.
Where the Add Prefix and Suffix to Lines helps in real life
You have 200 product IDs and need each one wrapped in quotes with a trailing comma for a SQL query. Adding a prefix and suffix formats the whole list at once.
A social media manager has a list of keywords and wants a # in front of each. One pass turns the list into ready-to-use hashtags.
Common mistakes to avoid
- Forgetting to remove blank lines, which then get a prefix too.
- Adding a trailing comma to the final line of a code list.
- Using smart quotes where code needs straight quotes.
- Including spaces you did not intend in the prefix.
💡 Practical tip: Wrapping each line in quotes and adding commas is a fast way to build lists for SQL IN clauses or arrays.

Tips for better results
- Clean up blank lines and extra spaces first.
- Check the last line when building code lists.
- Combine with sorting or deduplication for tidy lists.
Frequently asked questions
What does the Add Prefix and Suffix to Lines do?
Add text before and/or after every line.
Is the Add Prefix and Suffix to Lines accurate?
Yes. It uses standard formulas and exact constants, and the results are verified by our automated test suite. Values are displayed to up to 12 significant digits.
Is this tool free and private?
Yes — the Add Prefix and Suffix to Lines is completely free with no sign-up, and it runs entirely in your browser, so the values you enter are never uploaded to our servers.
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