Line Break Remover

Line Break Remover is a free online tool that strips line breaks from text, converting multi-line content into a single continuous block or a custom-separated string. Whether you have text broken across lines from a PDF copy, an email quote, a code file, or a document export — this tool joins it all into one clean output with a single click. Options let you replace each line break with a space, a comma, a custom separator, or remove it entirely depending on what your target format requires.

Line breaks are invisible characters that tell a text display system to start a new line. When you press Enter, a line break character is inserted — on Windows this is a carriage return followed by a line feed (CRLF, or \r\n), on Unix and macOS it is just a line feed (LF, or \n), and on older Mac systems it was a carriage return alone (CR, or \r). This inconsistency between operating systems causes problems when text created on one platform is processed on another — a file with Windows-style CRLF line endings displays unexpected characters when opened on Linux, and vice versa.

PDF files are one of the most common sources of unwanted line breaks. When you copy text from a PDF, each physical line in the document is copied as a separate line — even if the break in the middle of a sentence is purely a layout artefact and not a real paragraph break. The result is a continuous paragraph split into short fragments. Removing these line breaks and replacing them with spaces restores the original sentence flow. Email forwarding has the same problem — quoted text is often wrapped at 72 or 80 characters per line for email client compatibility, creating artificial breaks that fragment sentences.

For data processing and API work, line breaks inside field values cause parsing errors. CSV files expect each record on a single line — a field value with an embedded line break breaks the entire row structure. JSON string values cannot contain literal line breaks; they must be escaped as \n. SQL INSERT statements typically require all column values on one line. Pre-processing text to remove line breaks before loading it into these systems prevents silent data corruption and parsing failures.

Developers use Line Break Remover to clean multi-line command output before using it in scripts, normalise text fields in database records, and preprocess content for API request payloads. Data analysts clean multi-line cells exported from spreadsheets or BI tools. Content writers join fragmented PDF text before editing. Customer support agents clean wrapped email text before formatting responses. DevOps engineers join multi-line certificate strings, SSH keys, and Base64-encoded data into single-line format for configuration files.

Different situations call for different replacement strategies. When joining lines from a paragraph like a PDF copy, replace each line break with a space so words flow correctly. When converting a column of values into a comma-separated list for a SQL IN clause, replace each line break with a comma and space. When you need raw concatenated strings with no separator — for Base64 data, hash values, or encoded certificates split across lines — remove line breaks entirely without any replacement.

Line Break Remover runs entirely in your browser. The tool applies JavaScript regular expressions to replace all line break characters (LF, CR, and CRLF) with your chosen replacement string. The process is instantaneous and handles text of any length. Your output is ready to copy with a single click, and no data is ever sent to any server.