Regex Split Tool

Summary

The Regex Split Tool lets you enter any regular expression as a delimiter and instantly splits your input text into a numbered list of parts. It works entirely in your browser with no data sent to any server. Useful for developers parsing log lines, CSV-like data, or any structured text.

How it works

1. Paste or type your input text into the Text Input field.
2. Enter a regular expression in the Delimiter (Regex) field.
3. Optionally toggle flags like case-insensitive (i) or multiline (m).
4. Click "Split Text" to view the split parts in a numbered list.
5. Empty parts are shown with a muted label so you can count them accurately.
6. Click any part to copy it to your clipboard.

Use cases

• Split a log file line on whitespace or a custom separator.
• Parse delimited data such as CSV or TSV strings.
• Tokenize source code snippets for analysis.
• Extract segments from URLs or file paths.
• Test a regex delimiter before using it in production code.
• Split sentences on punctuation marks to count word groups.

Frequently Asked Questions