Join Text
Join multiple lines into a single string with a delimiter
100% client-side processing
Elements: 3
Elements: 0 (empty removed: 0)
Text rarely arrives in the shape you need: spreadsheets give you comma-separated values, your code wants a newline-separated list, and pasted data has stray spaces everywhere. This join and split tool converts between the two shapes in one step — merge lines into a single delimited string, or break a delimited string back into clean lines, with presets for common delimiters and a custom option for everything else.
How to Use
- Enter text: Paste your text into the input area
- Choose mode: Select join (lines to one string) or split (one string to lines)
- Select delimiter: Pick a preset — comma, space, newline, tab, semicolon, pipe, or colon — or type a custom one
- Clean up: Optionally trim whitespace and remove empty items
- Copy result: Copy the output to your clipboard
Features
- Join multiple lines with any delimiter
- Split text by any delimiter, including multi-character strings
- Seven common presets plus custom delimiter support
- Trim elements and remove empty items options
- Swap button switches mode and exchanges input and output
- Fully client-side — your text never leaves the browser
When Joining and Splitting Saves Real Time
The classic case is moving data between tools with different expectations. Excel exports CSV — one long comma-separated row per record — while a SQL IN clause or a config file wants one value per line or a different separator. Splitting a pasted CSV row into lines turns tedious reformatting into two clicks. Three habits prevent common mistakes: trim first, because pasted data carries invisible trailing spaces; remember the delimiter disappears when you split; and pick a delimiter that never appears in your values — if your text contains commas, use a pipe or tab instead.
Use Cases
- Data wrangling: Convert between CSV rows and line-by-line lists
- Code and queries: Build comma-joined value lists for SQL
INclauses or arrays - List cleanup: Reformat pasted lists with trimming and empty-item removal
- Quick transforms: Turn a sentence into words, or words back into a slug-ready string
Related Tools
Frequently Asked Questions
Can I use a custom delimiter?
Yes, select Custom and enter any delimiter including special characters and multi-character strings.
Can I swap join/split mode?
Yes, use the Swap button to switch between modes and automatically exchange input and output.
What preset delimiters are available?
Comma, space, newline, tab, semicolon, pipe, and colon presets are available.
What do the trim and remove-empty options do?
Trim removes leading and trailing whitespace from each element, and remove empty drops blank items. Together they clean up messy pasted data so you get a tight, consistent list.