Can I add both prefix and suffix?

Yes. You provide a prefix string, a suffix string, or both, and the tool wraps each line accordingly. Common cases include URL paths with leading and trailing slashes, tag wrapping with angle brackets, and adding matched delimiters around items.

What about empty lines?

Most tools include empty lines, which means an empty line becomes whatever your prefix and suffix concatenate to. Some skip empty lines entirely. Pick the behaviour that matches your need: include empties to preserve structure, skip them when you want cleaner output.

Can I use template variables?

Some tools support {n} as a placeholder for the line number. A prefix of 'Item {n}: ' turns a list into 'Item 1:', 'Item 2:', and so on, which is perfect for numbered lists and indexed identifiers. Verify the feature exists in your tool of choice before relying on it.

What about special characters?

Prefix and suffix strings accept any characters, including backslashes, slashes, equals signs, and quotation marks. The tool treats them literally rather than interpreting them. Watch out for shell-escape characters if you plan to paste the result into a command line, since those need additional handling.

How does this differ from find-replace?

Prefix and suffix add content to the ends of each line, while find-replace substitutes specific text wherever it appears. They're different operations that often complement each other in a transformation pipeline, especially when you need both wrapping and content substitution.

Can I batch process large lists?

Most browser-based tools handle thousands of lines instantly. The practical limit is browser memory, which usually holds up well into the tens of thousands. For genuinely large lists in the millions, drive the same operation from a command-line script or sed pipeline for reliability.

Is the data sent to a server?

No. The transformation is plain JavaScript text manipulation that runs entirely in the browser. Your text never leaves the device.

Add Prefix/Suffix

Add prefix or suffix to each line of text online. Free bulk text editing tool for adding numbering, bullets, or custom strings.

Text Tools

Instant results

Prefix

Suffix

Skip empty lines

Quick Presets

Input

Output

About Prefix/Suffix

Add prefix and/or suffix to every line. Great for wrapping text, creating lists, generating code, or formatting data.

How to Use Add Prefix/Suffix

Paste lines of text

Drop in the multi-line text you want to transform. Every line will receive the same prefix and suffix.

Specify the prefix and suffix

Type the strings you want to add. Both fields are optional, so you can apply only a prefix, only a suffix, or both at once.

Configure options (optional)

Decide whether to skip empty lines, use template variables like {n} for line numbers, and trim whitespace before applying the wrapping.

Copy the result

The transformed text appears immediately. Copy it to the clipboard for use in data files, code, or formatted lists.

When to Use Add Prefix/Suffix

Bulk text manipulation

Adding the same prefix or suffix to every line of a list is the kind of repetitive work that begs for automation. Whether you're prepending 'Mr.' to a list of names or 'C:\\Users\\' to a stack of paths, the operation finishes in one shot.

Code and template generation

Developers turn lists of words into lists of variable names, paths, or URLs by tacking on consistent prefixes and suffixes. The tool handles the boilerplate so you can focus on the meaningful parts.

URL list manipulation

A domain list becomes a URL list with a quick 'https://' prefix, and adding '?utm_source=campaign' to the end of each entry is a one-line operation. Useful any time you need to batch-process a list of URLs.

Data labelling

Numbers and measurements often need labels before going into a report or presentation. Prepending 'Total: ' to figures or appending ' kg' to weights makes the formatted output instantly readable.