Split String

Paste in a block of text and split it by any delimiter — comma, space, newline, semicolon, or a custom character or regex pattern — to instantly turn it into a clean list. Options to trim whitespace, remove empty entries, and re-join the results with a different separator make it easy to reformat CSV fragments, clean up a pasted list of emails or tags, or convert one delimiter format to another. Copy the output as a plain list, a JSON array, or newline-separated text.

Convert Delimited Text Into Clean Lists and Formatted Arrays

Handling messy, delimited text—such as raw CSV exports, comma-separated email lists, or unformatted log outputs—often requires manual find-and-replace work. Converting strings from one separator format to another should be fast, accurate, and customizable.

The Split String tool processes raw text blocks instantly, splitting your input using standard or custom delimiters and reformatting the output into clean lists, arrays, or custom-separated strings.

Key Features

  • Flexible Delimiter Support: Split text by standard characters (commas, spaces, tabs, newlines, semicolons) or input custom strings and regular expression (regex) patterns.
  • Data Cleaning Controls: Automatically trim leading/trailing whitespace from extracted items, strip out quotes, and drop empty or blank entries with a single toggle.
  • Instant Re-Joining: Recombine your split items using a new target separator—convert comma-separated values into newline lists, pipe-separated text, or custom patterns effortlessly.
  • Multiple Output Formats: Copy your processed output as a raw newline-separated list, a formatted JSON array (["item1", "item2"]), or a single-line string with custom spacing.
  • Item Count & Statistics: View real-time item counts and character metrics to verify dataset sizes before copying or exporting.

Common Use Cases

  • Data Cleaning & Reformatting: Quickly clean up messy CSV fragments, reformat tag lists, or prepare data for spreadsheet imports.
  • Developer & Database Prep: Convert raw lists of IDs, strings, or email addresses into valid JSON arrays or SQL IN (...) clause values.
  • Email & Contact List Management: Standardize pasted email lists by stripping spaces, removing blank rows, and converting comma-separated contacts into clean vertical lists.

Paste your text block above, choose your delimiter settings, and copy your reformatted list immediately.