Text tools
Convert Text to One Line Online
Convert multi-line text into a single line using spaces, commas, or no separator.
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 text must fit into a single-line field or when a vertical list needs to become one compact line.
It is closely related to line-break removal, but gives more control over what replaces each line break.
Common cleanup options
Space separator
Best for turning wrapped text into a normal sentence or paragraph.
Comma separator
Useful for turning a vertical list into a compact comma-separated list.
No separator
Use only when the former line boundaries should disappear completely.
One-line fields
Helpful for CMS fields, spreadsheets, metadata, prompts, and form inputs.
How to use it
- Paste the multi-line text.
- Choose a separator: space, comma, or none.
- Normalize repeated spaces if needed.
- Run the tool and copy the one-line result.
Privacy and limitations
One-line conversion may remove useful structure from paragraphs, addresses, or code.
Review punctuation and separators before using the output in production fields.
Frequently asked questions
Can I join lines with commas?
Yes. Choose comma + space as the separator when you need a comma-separated list.
Is this different from removing all line breaks?
Yes. This page focuses on one-line output and lets you choose a separator between former lines.
Can it normalize repeated spaces?
Yes. Leave space normalization on for cleaner one-line text.
Last updated: May 7, 2026
How this page is maintained
This tool page is reviewed for practical accuracy, clear limitations, browser-based processing behavior, and links to related cleanup tasks. For site background and policies, see About, Privacy, and Contact.
Related tools
Lines to comma list
OpenConvert one item per line into a comma separated list with optional trimming and empty-line cleanup.
Remove line breaks
OpenClean pasted text by removing line breaks, preserving paragraphs, or replacing breaks with spaces.
Trim whitespace from lines
OpenTrim leading and trailing spaces from every line, with optional internal space cleanup.