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Sort Lines Tool – Free Online Alphabetical & Custom Sort

Sort lines of text instantly with this free online sort lines tool. Choose from multiple sort modes: alphabetical (A→Z or Z→A), by line length (shortest or longest first), numerical (ascending or descending), reverse order, or random shuffle. Supports case-insensitive sorting, natural/alphanumeric sort (so 'file2' comes before 'file10'), deduplication, blank line removal, and custom delimiter-based sorting. All processing runs entirely in your browser — your data never leaves your device. Perfect for organizing lists, alphabetizing names, sorting code imports, and cleaning up data.

Sort Mode

Options

Input
Output

How to Use the Sort Lines Tool

Features:

  • Sort alphabetically (A→Z or Z→A), by length, numerically, reverse, or random shuffle.
  • Case-insensitive sorting and natural/alphanumeric sort.
  • Deduplication and blank line removal options.
  • Custom delimiter-based sorting support.

How to use:

  1. Enter your text in the Input area.
  2. Select the desired sort mode and configure options.
  3. View instant results in the Output area.
  4. Click Copy to copy results, or Clear to start over.

Tips:

  • All processing runs entirely in your browser — your data never leaves your device.
  • Works instantly with no server requests or API calls.