Text tools
Join Lines With Custom Separator Online
Join one item per line with a custom separator, with trimming and empty-line cleanup.
- No signup
- Browser-local
- Clean output
- Sample included
Privacy note
Your text is processed in your browser. This tool does not store pasted text on a server.
When this tool helps
Use this tool when one item per line needs to become a single line with a custom separator.
It is useful for form fields, CMS inputs, spreadsheet cells, notes, and simple data cleanup tasks.
Common cleanup options
Custom joining
Join names, tags, IDs, keywords, labels, or copied rows with the separator your destination field needs.
Clean output
Trim line edges and remove blank rows before joining the final text.
Reverse workflow
Use this with split text by delimiter to move between line-by-line lists and delimited text.
Browser processing
The current version runs in your browser and does not require an account.
How to use it
- Paste a list with one item per line.
- Enter the separator you want between items.
- Choose trimming and empty-line cleanup.
- Run the tool, then copy or download the joined output.
Privacy, review, and limitations
The current version processes pasted text in your browser for normal use, and the page explains the tool behavior that is visible in the interface. Review the preview before copying output into another workflow, especially when the source text came from PDFs, spreadsheets, exports, or copied tables.
This tool creates plain text, not a strict CSV export with quoted values.
Use a dedicated CSV tool when separators can appear inside values.
Frequently asked questions
Can I use any separator?
Yes. Enter a separator such as comma plus space, pipe, semicolon, slash, or custom text.
Can it skip blank lines?
Yes. Keep remove empty lines enabled to skip blank rows before joining.
Is my list uploaded?
No. The current tool processes pasted text in your browser.
Last updated: May 11, 2026
See the tool in action
How this page is maintained
This tool page is maintained for practical accuracy, clear limitations, browser-based processing behavior, and links to related cleanup tasks. It is intended for everyday text cleanup, not for legal, medical, financial, security, or other high-stakes decisions.
Browser-local processing
The current tool runs in the browser and does not require an account, upload, or server-side text processing for normal use.
Reviewed behavior
Examples, options, and limitations are checked against the actual tool behavior before public pages are added to the site.
Human review still matters
Text cleanup can miss source-specific issues such as broken words, malformed data, or copied table artifacts, so review important output before reuse.
Safe use checklist
- Use sample or non-sensitive text when testing a workflow.
- Check the output preview before copying it into another system.
- Keep confidential, regulated, or customer data inside approved tools.
- Use related tools only when they match the same cleanup task, not to force unrelated edits.
Related tools
Split text by delimiter
OpenSplit delimited text by a custom delimiter locally in your browser and place each item on its own line.
Lines to comma list
OpenConvert one item per line into a comma separated list with optional trimming and empty-line cleanup.
Lines to semicolon list
OpenConvert lines into a semicolon separated list locally in your browser, with spacing and cleanup options.