Skip to main content

Text File Line Ending Converter - CRLF and LF normalization

Upload or paste text and convert CRLF, CR, and LF endings to a consistent LF or CRLF output locally.

  • Runs locally
  • Category Format Converter
  • Best for Checking file type, size, metadata, and obvious mismatch signals before sharing.
Nothing is uploaded. Up to 50 files / 100 MB per batch; text and Base64 tools use lower browser-memory limits.
Output

What this tool does

Text File Line Ending Converter normalizes newline styles before commits, imports, scripts, CSV processing, and cross-platform handoffs. Upload a text file or paste content, choose LF for Unix/macOS/Linux workflows or CRLF for Windows-oriented systems, then copy or download the normalized result. It handles mixed CRLF, old-style CR, and LF inputs, which often appear after files move between editors, operating systems, and export tools. The conversion runs locally and keeps the original text otherwise unchanged.

Tool details

Input
Files + Text + Numbers
The page exposes text boxes, numeric controls, file pickers, or structured inputs depending on the tool.
Output
Live result + Copy + Download
The result area focuses on usable output, with copy, download, or preview actions when supported.
Privacy
Browser-side processing
The main tool logic does not call an external API, so inputs normally stay in the current tab.
Save / share
Shareable URL state
Key settings are encoded in the URL so another person can reopen the same setup.
Performance budget
Initial JS <= 34 KB
No WASM budget is declared, keeping the tool quick to open on mobile.
Best fit
Format Converter · Developer
Category and role tags drive related tools, internal links, and quick fit checks.

How to use

  1. 1. Input

    Paste or drop your content into the tool panel.

  2. 2. Process

    Click the button. All processing is local in your browser.

  3. 3. Copy / Download

    Copy the result or download to disk in one click.

How Text File Line Ending Converter fits into your work

Use it before upload, handoff, archive, support review, or any moment where a file needs one local check before it leaves your machine.

File jobs

  • Checking file type, size, metadata, and obvious mismatch signals before sharing.
  • Preparing mixed folders for upload, archive, intake, or review.
  • Keeping sensitive files in the browser instead of sending them to an account-based service.

File checks

  • Do not treat the extension alone as proof of the real file type.
  • Review metadata before a file goes to customers, vendors, or a public page.
  • Keep the original file until the copied, converted, or exported result is verified.

Good next steps

These links move the current task into a more complete workflow.

  1. 1 Text File Cleaner Upload a text file and remove BOM, null bytes, trailing spaces, and excessive final blank lines locally. Open
  2. 2 Markdown Link Extractor Upload Markdown and extract inline links, reference links, images, and bare URLs into a local CSV. Open
  3. 3 CSV to TSV Converter Convert CSV files to tab-separated values while preserving quoted commas, quotes, and multiline cells locally. Open

Real-world use cases

  • Fix cross-platform script files

    Normalize line endings before running scripts or committing files across operating systems.

  • Prepare imported text data

    Convert mixed newline files before feeding them into CSV, JSONL, or log-processing workflows.

Common pitfalls

  • Line ending conversion does not fix character encoding problems.

  • Some Windows batch files may specifically need CRLF.

Privacy

Text is read and converted locally. Pasted content is kept out of the address bar and is cleared when the page is reset.

FAQ

Tool combos

Folks in your role tend to reach for these alongside this tool.

Browse all tools for this role
Made by Toolora · 100% client-side · Updated 2026-06-13