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
Using this tool is simple and requires no signup or registration. 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 Text Toolbox?
Text Toolbox provides free, private, and instant online text tools. Unlike other text utility websites that require signup accounts or send your data to servers, all our tools process your text entirely in your browser. This means your content never leaves your device — we cannot see it, store it, or share it. Our tools are fast, lightweight, and work on any device with a modern web browser.