Remove Line Breaks
Strip line breaks, kill duplicate lines, trim blank lines, sort, and more. Multiple cleanup actions in one tool. Runs in your browser.
Runs in your browser — nothing uploaded
Input0 lines · 0 words · 0 chars
Cleanup actions
Result0 lines · 0 words · 0 chars
A multi-purpose text cleaner. Strip extra line breaks, remove duplicate lines, trim leading and trailing spaces, drop blank lines, and sort. Every action is a checkbox — toggle the ones you need, leave the rest off. Handy for cleaning up lists from PDFs, CSV exports, emails, and anywhere copy-paste introduces noise.
Private by design — your data never leaves your device
How to use it
No account, no upload — it all happens on your device.
1
Paste your text into the input area, or click 'Load sample' to see what each option does.
2
Tick the cleanup actions you want — trim, remove blank lines, dedupe, sort, or change how line breaks are handled.
3
The result updates instantly. The header shows line, word, and character counts for the input and output.
4
Click 'Copy' to put the cleaned text on your clipboard.
What each option does
Apply any combination — they run in a sensible order.
| Action | Effect | Use it when |
|---|---|---|
| Trim each line | Removes leading/trailing whitespace per line. | Copy-paste from PDFs or chat has hidden spaces at ends. |
| Remove blank lines | Deletes every empty line. | You want a compact list, no spacing. |
| Collapse blank lines | Multiple blank lines become a single blank line. | You want paragraphs preserved but not double-spaced. |
| Remove duplicates | Keeps the first occurrence of each line. | Deduping emails, IDs, URLs, or any list. |
| Sort | Reorders lines A→Z or Z→A (numeric-aware). | Alphabetizing a list, e.g. names, tags, paths. |
| Replace line breaks | Join lines with a space, a comma, or no separator. | Turning a column into a single-line list (CSV-ready). |
Common cleanup recipes
- Dedupe an email list:tick "Trim", "Remove blank lines", "Remove duplicates", and "Case-insensitive matching" — typos like trailing spaces and capitalization differences stop counting as different addresses.
- Multi-line text → CSV cell:tick "Join with comma + space". The list becomes a single line you can paste into a spreadsheet cell.
- Clean up PDF copy-paste:tick "Trim each line" and "Collapse blank lines". PDFs often have hard breaks at the end of every visual line — pair this tool with a manual paragraph join if you need flowing prose.
- Sort a list and dedupe in one go:tick "Remove duplicates", then pick "A → Z" under Sort.
When NOT to use this
- Code. Sorting and joining will absolutely destroy structured text. Only apply this to lists or prose.
- CSV with embedded newlines. If quoted fields in your CSV contain newlines, line-based operations will shred records. Run a CSV parser first.
- Indented prose."Trim each line" will strip leading indentation. Skip it if your text relies on indentation for meaning.
Frequently asked
How is 'remove duplicate lines' different from 'collapse blank lines'?
'Remove duplicate lines' deletes every repeat of any line — even non-blank ones — keeping the first occurrence. 'Collapse blank lines' only touches blank lines and just trims runs of empty lines down to one. You can combine both.
Does sorting break my data?
It reorders the whole text alphabetically, which is fine for lists but destructive for prose or code. The sort uses a locale-aware comparator (numbers inside strings are compared numerically, so 'item 2' lands before 'item 10') and is case-insensitive.
Is my text uploaded?
No. Everything happens in your browser as plain JavaScript string operations. Your text is never sent to a server, logged, or stored.