Sort Lines Tool

Q: "How do I sort 1, 2, 10 in the expected order?"

"Choose Natural sort. It treats number fragments as numbers, so 1 → 2 → 10."

Q: "Can I switch ascending or descending?"

"Yes. Use the Asc/Desc toggle next to the sort mode buttons."

Q: "What happens with duplicates?"

"Duplicates are kept by default. Turn on “Remove duplicates” to keep only the first."

Q: "How do I sort file2 and file10 correctly?"

"Natural sort places file2 before file10."

Q: "What about lines that mix text and numbers?"

"Use “first number in line” or move non-numeric lines to the top or bottom."

Paste a list and sort it instantly with natural, numeric, or lexicographic order. Combine blank-line cleanup, deduplication, and locale-aware sorting without sending data anywhere.

lock Your text is processed locally in this browser.

edit_note Input

Lines: 0 Chars: 0 Trailing newline: No

Auto update

Ctrl/⌘ + Enter to sort

Idle Auto update

Ctrl/⌘ + Shift + C to copy output

task_alt Output

Result 0 Duplicates removed 0 Time 0ms

settings_suggest Advanced options

expand_more

Ignore leading/trailing whitespace Whitespace is ignored for comparison only; output keeps the original lines.

Remove empty lines Lines that are blank after trimming are removed.

Duplicates

Duplicate checks follow the current comparison rules.

Case-insensitive compare Treat A and a as the same for sorting and dedupe.

Stable sort Keep original order when two lines compare equal.

Sort locale

Choose a locale for collation without changing the UI language.

Numeric sort details

Parse the whole line as a number Use the first number found in the line Example: "item 12" sorts by 12; "v1.2.3" uses 1.2.

Non-numeric lines

When sorting numerically, choose how to place non-numeric lines.

Decimal separator

Allow decimals Allow exponent notation (e.g., 1e6)

Auto detection uses a practical heuristic for mixed locale inputs.

How it works

1

Paste your list

Drop newline-separated text into the input area.
2

Choose a sort mode

Natural sort is the default; numeric and lexicographic are one click away.
3

Copy or download

Grab the sorted results instantly or continue chaining.

Examples (click to load)

Click a card to load its input

Sort mode differences

Natural

Uses locale-aware natural sorting so 1, 2, 10 are ordered correctly.

Numeric

Extracts numbers and sorts by numeric value, supporting decimals and exponents.

Lexicographic

Pure string comparison using the selected locale.

Privacy & limitations

All processing runs locally in your browser.
Very large inputs disable auto update to keep the UI responsive.
CSV column sorting is not supported in this tool.

FAQ

Q. How do I sort 1, 2, 10 in the expected order?

Choose Natural sort. It treats number fragments as numbers, so 1 → 2 → 10.

Q. Can I switch ascending or descending?

Yes. Use the Asc/Desc toggle next to the sort mode buttons.

Q. What happens with duplicates?

Duplicates are kept by default. Turn on “Remove duplicates” to keep only the first.

Q. How do I sort file2 and file10 correctly?

Natural sort places file2 before file10.

Q. What about lines that mix text and numbers?

Use “first number in line” or move non-numeric lines to the top or bottom.