How it works
Paste your text, choose the options and run. Review the result before copying.
Intl.Collator orders lines; equal keys keep original order. Numeric order is optional, not a number parser.
Example
10 Write one clear sentence. 2 A quiet morning. 1 A quiet morning.
Limits
Up to 1 MiB total UTF-8 input. Line operations normalize CRLF/CR to LF. Processing stops after 5 seconds.
Lines ≤ 50,000.