Join lines
ClientJoin multiline text with a comma, tab, or custom delimiter—complement to split text, in your browser.
About Join lines
Merge multiline text with a comma, tab, or custom delimiter—local join opposite of split text. 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
- Split text — Split a string on comma, tab, custom delimiter, or newlines—one token per output line. 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.
- Trim lines — Strip leading and trailing whitespace on each line—optionally remove empty lines locally. for the next text or markup step in your edit loop.
- Sort lines alphabetically — Locale-aware A→Z / Z→A line sorts plus reverse—optional trim or case folding, browser-only. for the next text or markup step in your edit loop.
Common use cases
- Join lines for quick local checks without uploading data.
- Copy results into tickets, docs, or classroom notes.
Common mistakes to avoid
Unexpected input shape
See the intro and how-to notes for accepted formats.
FAQ
Is processing local?
Yes—this runs entirely in your browser.
Agent prefill?
Use q or qb for the main text field when supported.
Common search terms
Phrases people search for that match this tool. See the full long-tail keyword index.
- join lines with comma online
- merge multiline text delimiter
- combine lines into one string
- join text lines browser tool
More tools
Related utilities you can open in another tab—mostly client-side.
Split text
ClientSplit a string on comma, tab, custom delimiter, or newlines—one token per output line.
List converter
ClientConvert lines ↔ JSON array ↔ CSV row—paste lists for configs, APIs, or spreadsheets; local only.
Trim lines
ClientStrip leading and trailing whitespace on each line—optionally remove empty lines locally.
Sort lines alphabetically
ClientLocale-aware A→Z / Z→A line sorts plus reverse—optional trim or case folding, browser-only.