Text Sorter

Numeric sorting extracts the leading number from each line and sorts by that numeric value. For example, lines like "10. Apple", "2. Banana", "100. Cherry" sort as 2, 10, 100 rather than the lexicographic order 10, 100, 2. Mixed lines that start with text but have no leading number are treated as zero and sorted before positive numbers. This mode is ideal for numbered lists, log files with numeric prefixes, or any data where the natural sort order depends on numeric value.

Lines that do not start with a number are assigned a sort value of zero and appear at the top (ascending) or bottom (descending) of the result. Lines starting with numbers sort by their numeric value. So "Apple" and "Banana" would both sort as if they were 0, preserving their relative order at the top, followed by lines with positive numeric prefixes. If you want numbers-only sorting, remove non-numeric lines first using Remove Empty Lines or manually.

Yes. Check "Remove duplicates" without selecting a sort mode (use Reverse, which simply flips without reordering) — but the most reliable approach is to enable Remove Duplicates and leave Sort Mode on A-Z or the mode you need. The duplicate detection is case-sensitive by default: "Apple" and "apple" are treated as different values. Duplicates are removed keeping the first occurrence and discarding subsequent ones.

Z-A sorts the lines from Z to A alphabetically — it is the reverse of A-Z alphabetical order. Reverse takes the current order of lines in the input (whatever order they are in right now) and flips it upside down, putting the last line first. If your lines are already alphabetically sorted A-Z and you apply Reverse, you get the same result as Z-A. But if your input lines are in an arbitrary order, Reverse simply inverts that arbitrary order rather than sorting alphabetically.

The tool handles hundreds of thousands of lines entirely in your browser. For very large inputs (tens of thousands of lines), there may be a brief processing delay while JavaScript sorts the array, but modern browsers can sort 100,000+ lines in under a second for most sort modes. The main practical limit is your browser's memory. If you are working with millions of lines, consider sorting the file server-side with a command-line tool like sort (Unix/macOS) or PowerShell's Sort-Object.

By default yes — blank lines are treated as empty strings and sorted like any other line. If you want them removed, enable "Remove empty lines" before sorting. With that option on, all lines that are entirely blank (or contain only whitespace) are stripped from the output. This is useful when cleaning up lists that have been copied from documents or spreadsheets with extra blank rows.

No. All sorting and deduplication happens entirely in your browser using JavaScript. Your text is never sent to any server, never saved in a database, and never logged. Close the tab and the data is gone. This makes the tool safe for sorting confidential information like internal name lists, code identifiers, or private data.