Split / Join Lines
Split text into individual lines or join multiple lines into a single line with a custom separator.
About This Free Online Split / Join Lines
Split text into individual lines or join multiple lines together with a custom separator. The Split mode breaks text at every newline into separate lines. The Join mode combines all lines into one using your chosen separator — space, comma, tab, pipe, or any custom string. Perfect for preparing CSV data, reformatting lists, combining code snippets, or cleaning up multi-line text for single-line use.
Features of Our Split / Join Lines
- Split mode — break text into individual lines
- Join mode — combine lines with a custom separator
- Customizable separator for join mode
- Real-time results as you type or paste
- Copy result to clipboard
- 100% private — browser-only processing
How to Use the Split / Join Lines
The Split / Join Lines works right in your browser — no signup, no installation. Follow these steps:
- Paste your text in the input area.
- Choose Split (break into lines) or Join (combine lines).
- For Join mode, enter a separator (space, comma, etc.).
- Click Copy to save the result.
Frequently Asked Questions About Split / Join Lines
What is the difference between Split and Join?
Split takes multi-line text and lists each line separately (useful for extracting items). Join takes separate lines and combines them into one line with a separator between each original line (useful for CSV, single-line output).
Can I use custom separators?
Yes. In Join mode, you can specify any separator — common choices include comma+space (", "), tab, pipe (" | "), or just a space.
Why Choose the Split / Join Lines?
Text Toolbox provides free, private, and instant online tools. Unlike sites that require accounts or send your data to servers, the Split / Join Lines processes everything in your browser — your content never leaves your device. It is fast, lightweight, and works on any modern browser.