Skip to content

Text Splitter

Splits a long text into chunks by line count, character budget or a delimiter, keeping sentences whole.

Cuts a long text into parts of a given size — by characters, by lines, at blank lines, or on a delimiter — and shows each part with its own copy button. The character mode cuts at a sentence end where it can, so the parts read as parts rather than fragments.

🔒 Runs entirely in your browsersplitchunklines

Text

How to split

By

Counted as a person counts them — an emoji is one, not two.

4 parts

parts

4

largest part

40

smallest part

20

Trimming removed whitespace between parts. Turn off trimming if you need the parts to rejoin byte for byte.
  • Part 127 characters1 line

    This is the first sentence.

  • Part 240 characters1 line

    This is the second. Here is a third one.

  • Part 320 characters1 line

    A fourth follows it.

  • Part 422 characters1 line

    And a fifth to finish.

How to use it

  1. Choose what decides the boundary

    A character count for a field with a limit, a line count for a batch, blank lines to keep paragraphs together, a delimiter when the text already has one.

  2. Leave sentence-aware cutting on

    It cuts at the last sentence end that fits, then the last space, before falling back to a hard cut. Korean 입니다. and CJK 。 both count as sentence ends.

  3. Copy the parts you need

    Each part has its own button, and "copy all" joins them with a separator. The size figures tell you whether the split came out even.

Common questions

How is a character counted?

The way a person counts them — an emoji is one, not two, and a Hangul syllable is one whether it is stored composed or decomposed. That matches what a form counting characters usually means.

The parts do not add up to the original

Whitespace between the parts is trimmed, which is what makes each part read cleanly. A warning appears when that happens, and the delimiter mode with "keep the delimiter" is the one that rejoins exactly.

Can I split a CSV by rows?

Use the CSV splitter for that — it keeps the header on every part and understands quoted fields containing newlines, neither of which a line-count split can do.

Feed it from

Line Wrapper

Hard-wraps text at a column width, or unwraps it back into single-line paragraphs.

Runs entirely in your browser

Case Converter

Converts between UPPER, lower, Title, Sentence, camelCase, snake_case, kebab-case and CONSTANT_CASE.

Runs entirely in your browser

Text Diff

Compares two texts side by side or inline, at line, word or character granularity.

Runs entirely in your browser

Duplicate Line Remover

Removes duplicate lines, keeps only duplicates, or counts how many times each line appeared.

Runs entirely in your browser

Next

These accept what this tool produces, so the result can go straight in.

CSV Splitter

Splits a table by row count or by the distinct values of a column, into separate files with the header repeated in each.

Runs entirely in your browser

List Formatter

Turns lines into a comma list, quoted SQL IN clause, JSON array or bullet list, and back again.

Runs entirely in your browser

Word & Character Counter

Counts characters with and without spaces, words, lines, paragraphs and UTF-8 bytes.

Runs entirely in your browser

Line Wrapper

Hard-wraps text at a column width, or unwraps it back into single-line paragraphs.

Runs entirely in your browser

Find & Replace

Replaces text by literal, whole word or regular expression, with capture groups and a preview of every hit.

Runs entirely in your browser

Markdown Editor

Edits Markdown with a live preview and exports the rendered HTML, with GFM tables and task lists.

Runs entirely in your browser