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About this tool
Join multi-line text into one line with your chosen separator.
Line Break Remover collapses multi-line text into a single line by splitting on every newline (both \n and Windows \r\n), trimming whitespace from each line, dropping empty lines, and rejoining what remains with a space, a comma-and-space, or nothing at all. It is for anyone holding a column of text that needs to become one string — a pasted list, a wrapped paragraph, a set of IDs. It also reports how many lines were joined and how long the result is, so you can check the count matches what you pasted.
Open Line Break Remover on AltFTool — it loads instantly in your browser.
Paste your multi-line text into the 'Text' textarea under Inputs; it starts pre-filled with the sample lines 'line one', 'line two' and 'line three'. Each line is trimmed and empty lines are dropped before joining
Choose a separator from the 'Join with' dropdown. It is a fixed list of three options and you cannot type your own: Space (the default), Comma — which joins with a comma followed by a space — or Nothing, which runs the lines together with no character between them
There is no process button: the joined line appears in the Result as you type, with cards labelled 'Lines joined' and 'Characters'. Press Copy to take it to the clipboard, Download to save it as line-break-remover.txt, or Reset to restore the sample text and the Space option
Empty and whitespace-only lines are filtered out before joining, so you never get a stray double comma from a gap in your list.
Leading and trailing spaces from indented or copy-pasted text are stripped, so joining with a comma gives clean separators.
The split matches \r\n as well as \n, so text from Notepad or an email client joins the same way as text from a code editor.
Paste the text, choose whether to join with a space, a comma, or nothing, and the single-line result appears immediately. Every newline is removed, each line is trimmed, and blank lines are dropped rather than becoming empty separators.
Choose the Comma option — lines are joined with a comma followed by a space, which is the format most email fields, CSV cells and search boxes expect. A 12-line list becomes 12 items separated by 11 commas, with no trailing comma at the end.
Yes — the Nothing option concatenates the lines directly, which is what you want for a hash, key or code that got wrapped across several lines. Because each line is trimmed first, no accidental spaces survive in the middle of the joined string.
Blank lines are removed entirely and each remaining line has its leading and trailing whitespace stripped before joining. The counter shows how many lines actually survived, so if you pasted 20 lines and see 17 joined, three of them were blank.