Add Text to Each Line — Free Online Prefix & Suffix Adder

Add Text to Each Line — Free Online Prefix & Suffix Adder. Free online tool to add text to each line. Add a prefix, suffix, or both to every line instantly — bulk text editor, no upload, 100% private.

Our free add text to each line tool lets you prepend a prefix, append a suffix, or add both to every line of your text in real time — no account or upload needed.

It is ideal for developers, data analysts, writers, and anyone who works with structured text lists. How to Add Prefix or Suffix to Each Line Paste your list or raw data into the Input field. Enter the text you want at the start of each line in the Prefix box.

Enter the text you want at the end of each line in the Suffix box. Your formatted result appears instantly in the Output field — click Copy to use it. Common Use Cases SQL / JSON : Wrap each value in quotes and add a trailing comma to build array literals.

Markdown : Add - [ ] to each line to turn plain text into a task checklist. HTML / CSS : Prepend selectors or append property declarations to multiple lines at once. Data Cleaning : Add URL prefixes, file path prefixes, or closing tags to bulk records.

Privacy & Security All text is processed 100% locally in your web browser — nothing is ever sent to a server. This makes it safe to use with sensitive code, private database records, and confidential data. Related Text Tools Need to sort your lines first?

Try the Text Sorter . Need to remove duplicate lines? Use Text Diff .

Frequently asked questions

How do I add text to the beginning or end of each line?

Paste your list into Input, then type what should go before each line in Prefix and what should go after it in Suffix. The Output updates as you type; click Copy to copy the result.

How do I wrap every line in quotes and add commas?

Type a quote mark in Prefix and a quote mark followed by a comma in Suffix, so apple becomes "apple", which is handy for SQL IN lists, JSON arrays or code. Remove the trailing comma from the last line if your syntax requires it.

Are empty lines changed too?

Yes. Every line, including empty ones, gets the prefix and suffix, and the text within each line is kept exactly as it is. A single line break at the very end of the input is kept as it is and does not create an extra decorated line. Remove other blank lines first if you do not want them to be decorated.

Why does the Prefix field start with - [ ]?

The tool opens with a Markdown task-list example: a Prefix of - [ ] turns each line into a checkbox item. Replace the Prefix with your own text, and use Clear to empty the Input box.

Can I share the result with someone?

Yes. Copy link creates a URL containing your input, prefix and suffix so someone else can open the same result. Processing happens in your browser, but the shared link itself contains your text, so avoid sharing sensitive data that way.

How to use this online tool

Add Text to Each Line — Free Online Prefix & Suffix Adder is designed for fast browser workflows when you need to format, validate, convert, decode, encode, generate, or inspect data without opening a heavy desktop app. Start with the input field or visible options, review the result, then copy or download the output for the next step.

Private processing in your browser

Add Text to Each Line — Free Online Prefix & Suffix Adder keeps the normal processing step local in your browser. That is useful for code snippets, tokens, documents, configuration values, text samples, and other material that should not be sent to a remote service unless you explicitly choose to share it.

When this tool is useful

Use Add Text to Each Line — Free Online Prefix & Suffix Adder for repeatable developer tasks, technical documentation, QA checks, quick conversions, debugging, content cleanup, and internal team workflows. The page focuses on clear inputs, immediate feedback, and output that is easy to reuse in code, reports, tickets, emails, or notes.

Practical tips

Before copying the final result, check important details such as spacing, casing, filenames, encoding, token structure, line breaks, or output format. Small checks prevent mistakes when the result is reused in source code, API requests, documentation, spreadsheets, or shared files.