Text splitter

This tool splits input text into a list using a delimiter you specify, a line break by default, then normalizes the result: each item is trimmed of leading and trailing whitespace, and any item left empty is discarded. The output is one item per line, with no blank entries and no residual padding.

Processing runs client-side, in JavaScript, entirely within your browser. There is no upload and no server round trip, and accordingly no run limit.

A list pasted from an email, a spreadsheet column, or a chat reply commonly arrives with blank lines, trailing whitespace on individual entries that a spreadsheet import will reject, and occasionally a mixture of line breaks and commas depending on the source's original formatting.

Converting that into a consistent list, one clean value per line, is a tedious manual task once the list exceeds a handful of entries.

The default delimiter is a line break, covering the common case without configuration.

Step 1

Paste the text into the input field.

Step 2

Leave the delimiter as a line break, or specify a comma, semicolon or any other character the list uses.

Step 3

Run the split and read the cleaned list.

For comma-separated, semicolon-separated or otherwise delimited text, enter that character in the delimiter field. The split treats it as a literal string, not a pattern.

Each resulting piece is trimmed and empty results are discarded regardless of delimiter, so a trailing delimiter or a run of consecutive delimiters does not produce blank entries.

This literal matching is also what makes the tool safe on source code or structured data pasted as plain text: a delimiter such as a period, a parenthesis or an asterisk is treated as exactly that character, never as a wildcard or a capturing group the way it would be interpreted inside a regular expression.

A genuine CSV file quotes a field that contains its own delimiter, so a row such as '"Smith, John", 42, "Doe, Jane"' keeps each name intact despite the comma inside it, because a real CSV parser understands quoting rules. This tool does not: it performs a literal character split, with no concept of a quote character protecting the delimiter sitting inside it.

Paste that exact row with a comma delimiter and the quoted names fracture at their internal comma exactly like any other value, since nothing in a plain split distinguishes a structural comma from one sitting inside a quoted field. For genuinely quoted CSV data, a dedicated CSV parser is the correct tool, not a literal delimiter split.

A blank line pasted into a bulk-import tool becomes an empty row that the import either rejects or silently stores as a blank record. A trailing space on an entry causes it to fail a match against an otherwise identical value.

A list mixing line breaks and commas confuses a script expecting a single consistent separator, producing subtly malformed entries rather than an obvious failure.

No. This performs a literal split on the delimiter specified, a line break or a chosen character, rather than a linguistic split on sentence-ending punctuation or paragraph structure. It has no model of what constitutes a sentence.

Splitting a paragraph into individual sentences requires a different category of tool. This one operates on lists already delimited by a consistent character, normalizing them.

Anyone preparing a bulk import, tags, email addresses, SKUs, uses this to convert a pasted comma-separated blob into one clean value per line before submission.

Engineers normalize a list copied from documentation or a chat reply before pasting it into an array literal or a configuration file, and data-entry workflows use it to remove blank lines and trailing whitespace before loading a list into a spreadsheet.