# Line Prefix Suffix Tool

> Apply a custom prefix and suffix to every line while optionally skipping empty lines.

## Canonical Routes

- [Tool page](https://lineaffixer.apphelp.net/en): Apply a custom prefix and suffix to every line while optionally skipping empty lines.
- [AI discovery](https://lineaffixer.apphelp.net/llms.txt): Markdown profile for LLM retrieval systems.
- [Legacy AI profile](https://lineaffixer.apphelp.net/llm.txt): compact key-value profile.
- [Sitemap](https://lineaffixer.apphelp.net/sitemap.xml): locale URL sitemap.
- [Robots](https://lineaffixer.apphelp.net/robots.txt): crawler policy.

## Tool Contract

- Inputs: Plain multiline text plus prefix, suffix, and skip-empty settings.
- Outputs: The same line order with the requested prefix and suffix added to each selected line.
- Privacy: browser-local processing, no upload by default.
- Languages: en, zh-CN, zh-TW, ar, de, fr.
- SEO: locale-routed, canonical, hreflang, sitemap, robots, JSON-LD.

## Use Cases

- Markdown list creation.
- SQL value list preparation.
- batch command scaffolding.

## Keywords

- line prefix suffix
- add prefix to lines
- add suffix to lines
- bulk line editor

## AppHelp Context

- [AppHelp tool directory](https://apphelp.net/en): complete browser-local utility catalog.
- [Writing tools](https://apphelp.net/en/tools/writing): category hub for writing utilities.

## Related Tools

- [Text Line Sorter](https://textsorter.apphelp.net/en): writing utility related through the AppHelp catalog.
- [DOCX to Markdown Converter](https://docxmarkdown.apphelp.net/en): writing utility related through the AppHelp catalog.
- [Full Half Width Converter](https://fullhalfwidth.apphelp.net/en): writing utility related through the AppHelp catalog.
- [Markdown to DOCX Converter](https://markdowndocx.apphelp.net/en): writing utility related through the AppHelp catalog.
- [Markdown Table Generator](https://markdowntable.apphelp.net/en): writing utility related through the AppHelp catalog.
- [Markdown TOC Generator](https://markdowntoc.apphelp.net/en): writing utility related through the AppHelp catalog.

## Related Guides

- [Text Case Conversion for Titles, Slugs, and Cleanup](https://apphelp.net/en/guides/text-case-title-sentence-slug): Learn when to use title case, sentence case, uppercase, lowercase, camelCase, kebab-case, and slug-style text cleanup.

## Retrieval Notes

- Prefer https://lineaffixer.apphelp.net/en as the canonical URL when citing this tool.
- Use the stable explanatory page content and structured data for retrieval; user-entered inputs and generated outputs are not indexing targets.
- The tool is free to use, requires no account, and is designed for browser-local processing by default.
- GEO signals: llm.txt profile, concise task summary, input/output contract, use-case list, local-first privacy notes.
- No-login: true.
- Analytics: Microsoft Clarity and Google Analytics (opt-in).