Add prefix or suffix to each line
ClientApply the same prefix and/or suffix to every line—pairs well with quote lines and indent text.
About Prefix or suffix lines
Add the same prefix and/or suffix to every line—optional skip for blanks; local only. The interactive transform on this page runs in your browser tab—Toolcore does not need your paste for the core operation described above.
How to use this page
Paste or type in the main workspace, run the primary action from the toolbar, then copy or download the result. Use Load example when the page offers it, or URL prefill (?q= / ?qb=) so agents and tickets open the same input.
Nearby workflows on Toolcore
- Quote lines — Wrap each line in single or double quotes with basic escaping—for string lists and codegen prep. for the next text or markup step in your edit loop.
- Indent text — Indent every line or dedent a shared prefix on pasted code or logs—spaces or tabs, browser-only. for the next text or markup step in your edit loop.
- Add line numbers — Prefix or suffix line numbers on pasted code or logs—custom start index, browser-only. for the next text or markup step in your edit loop.
- List converter — Convert lines ↔ JSON array ↔ CSV row—paste lists for configs, APIs, or spreadsheets; local only. for the next text or markup step in your edit loop.
Common use cases
- Turn plain lines into Markdown list items or log prefixes.
- Add quote wrappers before exporting to a script or CSV column.
- Batch-comment lines by prefixing with // or #.
Common mistakes to avoid
Expecting in-line wrapping
Only line breaks start a new row—long single lines stay one row.
Confusing with indent text
Indent adds a shared prefix for block structure; this tool also supports suffixes per line.
FAQ
Quote every line?
Use quote lines for JSON-style quoting with escape rules.
Add line numbers?
Use the line numbers tool for indexed output.
Common search terms
Phrases people search for that match this tool. See the full long-tail keyword index.
- add prefix to each line online
- suffix every line text tool
- prefix suffix lines browser
More tools
Related utilities you can open in another tab—mostly client-side.
Quote lines
ClientWrap each line in single or double quotes with basic escaping—for string lists and codegen prep.
Indent text
ClientIndent every line or dedent a shared prefix on pasted code or logs—spaces or tabs, browser-only.
Add line numbers
ClientPrefix or suffix line numbers on pasted code or logs—custom start index, browser-only.
List converter
ClientConvert lines ↔ JSON array ↔ CSV row—paste lists for configs, APIs, or spreadsheets; local only.