Join Lines (Text to One Line)
Paste any multi-line text or code and merge it into a single line — collapse extra spaces, trim each line, drop blanks, and tidy brackets and commas so `Sumif ( a,\nb\nc\n)` becomes `Sumif (a, b, c)`. Runs entirely in your browser.
About this tool
Text pasted from a PDF, a code editor, or a chat message often arrives broken across many lines when you actually want it on one. This join lines tool merges multi-line text into a single clean line, collapsing the extra spaces and stray line breaks that would otherwise force you to backspace through the whole thing.
It does more than a blind newline-to-space swap. It trims each line, drops empty ones, and tidies spacing around brackets and commas, so a wrapped function call like Sumif( a,\nb\nc\n) comes out as Sumif (a, b, c). The result is compact text you can drop into a formula, a single-line log entry, or a code comment.
How to use
- Paste the multi-line text or code you want flattened into the input panel.
- The single-line result appears immediately in the output panel.
- Review how blank lines were removed and spacing was normalized.
- Confirm brackets and commas are tidied the way you expect.
- Copy the one-line output and paste it where you need it.
- Adjust the source and re-paste if a specific line should stay separate.
Features
- Merges any multi-line block into a single line in one step.
- Collapses repeated spaces so the result stays compact.
- Trims leading and trailing whitespace from every line.
- Drops blank lines instead of leaving double separators.
- Tidies spacing around brackets and commas for readable output.
- Works on prose, code snippets, spreadsheet formulas, and log lines.
- Processes everything in the browser with no upload.
Frequently asked questions
Does my text leave the browser?
No. The merge runs locally in JavaScript, so whatever you paste — code, notes, or data — is processed on your device and never sent anywhere.
How are line breaks joined — with a space or nothing?
Lines are joined so that words stay separated and are not glued together, while runs of extra whitespace are collapsed. Empty lines are removed rather than turned into extra spaces.
Why did it change the spacing around my brackets?
It normalizes spacing around brackets and commas so the single line reads cleanly, which is especially helpful for flattened formulas and function calls.
Can I use it to build a spreadsheet formula?
Yes. A formula copied across several lines becomes one valid line, with commas and parentheses spaced sensibly so you can paste it straight into a cell.
Will it keep intentional blank separation between paragraphs?
No — the purpose of the tool is to produce a single line, so blank lines are removed. If you need paragraph structure preserved, this is not the right tool for that text.