Add Text to Each Line — Prepend & Append to Lines

Add Text to Each Line — Bulk Prefix, Suffix & Line Wrapper Online

The SimplyUtils Add Text to Each Line tool prepends a custom prefix, appends a suffix, or wraps each line of your text with opening and closing strings — processing thousands of lines in one shot, with results updating in real-time as you type. Essential for developers generating SQL quoted values, HTML list items, JavaScript import statements, Markdown bullet lines, or shell commands from plain text lists — without writing a script or using complex regex.

How to Add Text to Each Line

  1. Paste your text — Paste any multi-line content: word lists, URL lists, code identifiers, database values, etc. Both LF and CRLF line endings are auto-normalized.
  2. Set Prefix — Type the text to prepend before each line (e.g., " for SQL string opening quotes, - for Markdown bullets).
  3. Set Suffix — Type the text to append after each line (e.g., ", to close SQL quotes and add a comma separator).
  4. Optional: skip blank lines — Toggle to leave empty lines unchanged instead of wrapping them with prefix/suffix too.
  5. Optional: trim whitespace — Strip leading/trailing spaces from each line before adding prefix/suffix for clean output.
  6. Copy or download — Results update in real-time as you type prefix/suffix. Copy to clipboard or download as a .txt file.

Prefix & Suffix Transformation Examples

Prefix
Suffix
Input Line
Output Line
"
",
apple
"apple",
-
(none)
Item one
- Item one
<li>
</li>
Contact us
<li>Contact us</li>
echo "
"
Hello World
echo "Hello World"
import
from './index';
Button
import Button from './index';
//
(none)
TODO: Fix this bug
// TODO: Fix this bug

Developer & Technical Use Cases

1. SQL IN Clause Generation

Wrap a column of values with ' prefix and ', suffix to build SQL WHERE id IN ('val1', 'val2', 'val3') clauses from raw data exports or spreadsheet columns — a daily developer productivity task.

2. HTML/JSX List Generation

Wrap plain text items with <li> and </li> HTML tags — or <ListItem> and </ListItem> React component tags — to scaffold component trees from product requirement documents or spreadsheets.

3. JavaScript Bulk Import Statements

Turn a list of exported component names into import ComponentName from './components/ComponentName'; lines in bulk — then paste the whole block into your barrel export file.

4. Markdown & Documentation Formatting

Convert plain item lists into Markdown bullet lists (- item), numbered lists (1. item), or checklist items (- [ ] item) by setting the appropriate prefix. Paste directly into your .md file.

5. Shell Scripting & Command Generation

Prefix a list of filenames with rm to generate deletion commands, or with chmod +x to generate permission commands. Pipe the output directly into your terminal session.

6. Data Engineers & ETL Pipelines

Fix unquoted CSV columns by wrapping field values with double quotes, or add column-specific prefixes before loading into data transformation pipelines.

Frequently Asked Questions

Can I add text to only specific lines?

This tool adds prefix/suffix to all lines. To target only specific lines, first use the Filter Lines tool to isolate the lines you want, apply the prefix/suffix transformation, then manually combine with your remaining lines.

Does it handle Windows-style CRLF line endings?

Yes — the tool automatically normalizes both CRLF (\r\n, Windows) and LF (\n, Unix/Mac) line endings before processing. Pasted Windows text is handled correctly regardless of your operating system.

How many lines can this process at once?

Processing runs in your browser's JavaScript engine — practically unlimited. The tool has been tested with 200,000+ line files without performance degradation. Results appear in real-time as you type.

Can I add sequential line numbers as a prefix?

For static prefixes, you can manually type a number. For dynamic auto-incrementing line numbers, enable the "Line Numbers" toggle in the tool settings, or use the Repeat Text tool with line numbering enabled.

Can I use special characters like quotes or backslashes in prefix/suffix?

Yes — you can type any character directly into the prefix/suffix fields: single quotes ('), double quotes ("), backslashes (\), backticks (`), angle brackets (< >), and Unicode characters are all treated as literal characters.

Related Utilities: Filter Lines Repeat Text Text Case Converter

Client-Side Processing: All text manipulation runs entirely in your browser. No content is transmitted to SimplyUtils servers.