Line Prefix & Suffix applies the same text before, after, or around every line in a multi-line input. Instead of editing dozens of rows one by one, you define the wrapper once and generate a consistent result for the entire list.
It is especially useful for predictable line-based formatting: adding bullets, quoting values, appending commas, building URL paths, adding labels or preparing small code and configuration fragments. The transformation is literal, so you can see exactly what will be added to each line.
How to use this tool
Prefix, suffix, or both
Enter the source lines, add text to the prefix field, suffix field, or both, then run the tool. A prefix is inserted at the beginning of each processed line; a suffix is appended at the end.
Check blank lines and spacing
If the input contains blank lines, review whether they should also receive the wrapper. Spaces typed inside the prefix or suffix are significant. For example, a bullet prefix usually needs a trailing space such as • .
Use generated code carefully
The tool performs text formatting only. If you use the output for SQL, shell commands, HTML, JSON or another programming language, validate the final syntax in the destination system. Adding characters around lines does not make untrusted input safe.
Examples
Add bullets
Prefix each line with “• ” to turn a plain list into a bulleted text list.
Quote every value
Use a double quote as both prefix and suffix to turn apple into "apple".
Append commas
Use a comma as the suffix when preparing a simple comma-ended list for later editing.
Build URL paths
Prefix IDs with https://example.com/item/ to create one URL per line.
Common use cases
- Add bullets or labels to lists
- Wrap each line in quotation marks
- Append commas or other delimiters
- Create repeated URL or API path prefixes
- Prepare simple code or configuration fragments
- Add a consistent marker to identifiers
Frequently asked questions
Can I add only a prefix?
Yes. Leave the suffix empty and only the prefix will be added to each line.
Can I add only a suffix?
Yes. Leave the prefix empty and the suffix will be appended to each line.
Are spaces preserved?
Spaces you include in the prefix or suffix are meaningful. Add them deliberately when you want separation between the wrapper and the original line.
Can I use the output as SQL or shell code?
You can format text for those workflows, but the tool does not validate syntax or make untrusted input safe. Review generated code before running it.
What happens to blank lines?
Blank-line handling can depend on the tool settings and source text. Review the output when blank lines matter to your destination format.