Normalize Line Breaks
Normalize inconsistent line breaks across code files, scripts, and Markdown documents. Converts erratic CR, LF, and CRLF endings into uniform newline formatting.
Find, Replace & Remove Text
Global search & replace with regex support, plus instant 1-click filters to strip vowels, punctuation, quotes, or diacritics.
Step-by-Step Instructions
Paste Source Text or Source Code
Insert your document, script, or configuration file containing mixed or incompatible line endings.
Select Target Line Ending Format
Choose Unix / Linux / macOS standard (`LF` - `\n`), Windows standard (`CRLF` - `\r\n`), or legacy Classic Mac standard (`CR` - `\r`).
Preview Normalized Output
Inspect the sanitized line break formatting consistent across all operating systems.
Copy or Download Clean File
Copy the normalized text or download it as a plain text / script file ready for git commits and server deployments.
Key Features & Capabilities
- Universal line ending converter supporting LF (`\n`), CRLF (`\r\n`), and CR (`\r`)
- Mixed line break detector identifying inconsistent line termination across collaborative repositories
- Prevents Git line-ending conflicts (`core.autocrlf` warnings) and cross-platform bash script syntax errors (`^M` carriage return errors)
- Preserves original character encodings (UTF-8, ASCII) without data corruption
- High-speed client-side processing capable of normalizing large source files instantly
- 100% secure: runs locally in the browser with no server uploads
Frequently Asked Questions
What is the difference between LF (Unix) and CRLF (Windows) line breaks?
LF (Line Feed, `\n`, byte `0x0A`) is the standard line break format used by Linux, macOS, Unix, and modern web protocols. CRLF (Carriage Return + Line Feed, `\r\n`, bytes `0x0D 0x0A`) is the standard line ending used by Windows operating systems. Mixing them in a project often causes Git diff anomalies and shell execution errors.
Why do shell scripts fail with 'command not found \r' or '^M' errors?
When a Bash or shell script authored on Windows with CRLF line endings is executed on a Linux server, the Linux interpreter sees the carriage return `\r` as part of the command name rather than whitespace, causing execution failure. Normalizing line breaks to LF resolves this immediately.
How does normalizing line endings prevent messy Git diffs?
If team members on Windows and Mac edit the same file with different line ending settings, Git may register the entire file as modified on every commit. Converting all files to consistent LF endings ensures clean, accurate git commit histories.
Can I convert legacy Mac (CR) files to modern LF?
Yes. The tool automatically detects old Classic Mac OS CR (`\r`) line breaks and converts them cleanly to standard Unix LF (`\n`) or Windows CRLF (`\r\n`).
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