It's a sort that interprets digit runs inside strings as numbers. "item2" sorts before "item10" because 2 is less than 10, instead of after it as plain alphabetic comparison would do (since '1' precedes '2' character-by-character). Particularly useful for filenames, version strings, and anything else with embedded numeric components.

Is it case-sensitive by default?

That depends on the implementation. JavaScript's default sort is case-sensitive and places all uppercase letters before all lowercase ones, so "Apple," "banana," "Cherry" sorts as Apple, Cherry, banana. Switching to the case-insensitive mode produces the order most people expect: Apple, banana, Cherry.

How are duplicates handled?

Sorting alone doesn't remove duplicates — it just places them adjacent to each other. Pair sort with a deduplication step (or pick a tool that combines both) when you need a clean, unique, ordered list out the other end.

What about empty lines?

Configurable. Tools usually let you include blank lines (which then sort to the top or bottom depending on the order) or skip them entirely for a cleaner output. Set the behavior explicitly when the input is a mix of data and whitespace.

Can I sort by specific columns?

Line sort treats each entire line as a single value, so column-aware sorting requires a structured-data tool. For CSV files, a spreadsheet application or a dedicated CSV utility handles per-column ordering far better than a flat line sort can.

How is alphabetical determined?

Character-by-character lexicographic comparison using the underlying code points. ASCII places uppercase A through Z (65–90) before lowercase a through z (97–122), so a strict sort interleaves case in ways that look unusual until you remember the underlying ordering. Case-insensitive mode normalizes that.

Is the data sent anywhere?

No. The sort is pure JavaScript and runs entirely in your browser. The lines you paste never leave your device.

Sort Lines

Sort text lines alphabetically, numerically, or by length online. Free line sorter with ascending, descending, and custom options.

Text Tools

Instant results

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Case sensitiveRemove blanks

Input (one item per line)

Sorted Output (0 lines)

About Sort Lines

Sort lines of text in various ways: alphabetically, numerically, by length, or randomly. Supports ascending and descending order, with options for case sensitivity and blank line removal.

How to Use Sort Lines

Paste your list

Drop the lines you want sorted into the input area. Each line is treated as one item.

Pick the sort mode

Choose alphabetical, reverse, numeric, or natural sort, and toggle case sensitivity if your data needs it. The mode you pick should match the kind of values you're sorting.

Run the sort

The tool reorders the lines according to your chosen criteria. The output is deterministic, so identical input plus identical settings always produce the same result.

Copy and reuse

Take the sorted list back into your document, code file, or data pipeline. The output is plain text and pastes cleanly anywhere a list belongs.

When to Use Sort Lines

Putting lists in order

Names, references, glossary entries, product lists — almost any list reads better once it's alphabetized. The tool sorts ascending or descending and handles case sensitivity options, which makes it a quick stop while putting together bibliographies, directories, or any document that needs to feel organized rather than dumped.

Prepping data for downstream tools

A surprising number of tools assume sorted input, and operations like deduplication become much more obvious once the data is in order. Sorting log files chronologically, organizing CSV exports, or arranging records before a database import all benefit from a fast, deterministic sort step.

Tidying code and configuration

Sorted import statements, dependency lists, environment variables, and CSS rule blocks all read more cleanly and produce smaller version-control diffs. It's the kind of low-stakes hygiene step that pays back over time, especially in long-lived files like package.json or requirements.txt.

Numeric and version-aware sorting

Plain alphabetic sort places "10" before "2" because of how lexicographic comparison works on the leading digit. Numeric mode handles values as actual numbers, and natural-sort mode handles strings with embedded numbers like file-2.png and file-10.png the way humans expect. Critical when working with versions, file lists, or anything else where the numeric relationship matters.

Sort Lines Examples

Plain alphabetical sort

Input

Cherry, Apple, Banana on three lines

Output

Apple, Banana, Cherry in A-to-Z order

The default sort is straightforward alphabetical, with optional case sensitivity. It's the most common reason people reach for the tool — a quick reorder of a freeform list before pasting it elsewhere.

Descending alphabetical

Input

Apple, Banana, Cherry

Output

Cherry, Banana, Apple in Z-to-A order

Reverse mode flips the same algorithm so the output runs from highest to lowest. Handy for newest-first chronological lists, top-priority-first ordering, or any case where the tail of the alphabet should lead.

Numeric mode

Input

10, 2, 100, 1, 20 each on their own line

Output

1, 2, 10, 20, 100 in proper numeric order

Plain alphabetical sort would put 10 before 2 because 1 comes before 2 lexicographically. Numeric mode parses the values as numbers and orders them the way you'd expect, which is essential for file lists, version numbers, and any data where digits actually represent magnitudes.

Tips & Best Practices for Sort Lines

1.Pick the sort mode that matches the data. Alphabetic for plain text, case-insensitive when you want "Apple" and "apple" to land together, numeric for actual numbers, and natural sort for strings that contain numbers like filenames.
2.Strict alphabetic order interleaves cases differently than people expect. "Apple," "banana," "Cherry" sorted strict produces Apple, Cherry, banana because uppercase letters precede lowercase in ASCII. The case-insensitive option fixes that.
3.Beware of mixed numeric and alphabetic data. "item10" sorts before "item2" alphabetically, but natural sort interprets the embedded digits and produces the order you actually wanted.
4.Decide what to do with blank lines. Some tools sort empty entries together at the top or bottom; others discard them. For mixed lists, set the behavior explicitly so the output matches expectations.
5.Stable sorts preserve the original order of items the comparator considers equal. Almost every modern sort implementation is stable, which matters when secondary ordering carries information you want to keep.
6.Sort plus dedupe is a common combo. Sorting first makes duplicates adjacent, which simplifies the deduplication step and produces a clean, unique output list in one short pipeline.

Frequently Asked Questions

The common modes are alphabetical (A to Z), reverse alphabetical (Z to A), numeric ascending and descending, case-insensitive, and natural sort for strings with embedded numbers. Picking the right one comes down to whether your data is text, numbers, or text mixed with numbers.

Sort Lines

About Sort Lines

How to Use Sort Lines

Paste your list

Pick the sort mode

Run the sort

Copy and reuse

When to Use Sort Lines

Putting lists in order

Prepping data for downstream tools

Tidying code and configuration

Numeric and version-aware sorting

Sort Lines Examples

Plain alphabetical sort

Descending alphabetical

Numeric mode

Tips & Best Practices for Sort Lines

Frequently Asked Questions

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