#236 · Formatters & Data Text Tool

LF to CRLF Converter

Convert Unix LF line endings to Windows CRLF. Normalize mixed endings, preserve visible text, count changed lines, and prepare files for Windows-only workflows.

Text Input

Line ending options

Recent History

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How to use this text tool

  • Paste LF-based text.
  • Run the converter to generate CRLF output.
  • Review line ending statistics.
  • Copy or download the Windows-style text file.

What this tool does

This tool rewrites line endings into CRLF so files display and behave consistently in Windows-focused environments.

Normalize existing CRLF, LF, and CR endings into a clean line array, then join lines using CRLF and report the conversion result.

Use CRLF when your project or Windows-only toolchain requires it. For cross-platform repositories, LF may be preferable.

Example

Sample input is included in the text box. Run the tool to see the processed output and the before/after statistics.

Use cases

  • Clean pasted code before review.
  • Normalize formatting before committing files.
  • Prepare text for editors, terminals, documentation, or data exchange.
  • Compare before and after structure using the result metrics.

Tips for better output

  • Use CRLF for Windows-only scripts when required.
  • Check Git auto line ending settings.
  • Avoid mixing LF and CRLF in the same file.

Processing details

The tool runs in the browser and focuses on safe whitespace, indentation, wrapping, line ending, or column formatting depending on the selected tool.

For critical code or regulated data, validate the final output with your project-specific parser, compiler, linter, or test suite.

FAQ

When should I use CRLF line endings?

Use CRLF when a Windows-only tool, script, editor, or project convention requires Windows-style line endings.

Why does Windows use CRLF?

CRLF is a historical convention from carriage return and line feed control characters used by DOS and Windows text files.

Can editors convert LF to CRLF automatically?

Many editors can convert endings, but an online converter is useful for quick checks, pasted text, and downloadable output.

Will Git change CRLF line endings?

Git may convert line endings depending on core.autocrlf and .gitattributes settings.

Is CRLF required for Windows Notepad?

Modern Notepad supports LF, but older tools and some Windows workflows may still expect CRLF.

Processing modules

ModulePurpose
Input parserReads pasted text, uploaded files, or sample data.
Formatter coreApplies the selected conversion or formatting logic.
Quality analyzerCalculates line, whitespace, and consistency metrics.
ExporterProvides TXT, CSV, JSON, copy, and print actions.

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