Textoolz

Find and Replace Text

Find and replace text with support for case-insensitive and regex matching. Free online find-and-replace tool for quick text editing.

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The find and replace tool searches your text for a specified string or pattern and replaces it with your desired replacement. It supports plain text matching, case-insensitive search, and full regular expression patterns for advanced replacements.

This tool is essential for bulk text editing, data cleanup, reformatting content, and applying consistent changes across large blocks of text. Whether you need to replace a simple word or use a complex regex pattern, this tool handles it instantly.

All processing runs in your browser — your text stays completely private.

How to Use Find and Replace Text

  1. 1Paste your text into the input area.
  2. 2Enter the text to find and the replacement text in the options.
  3. 3Optionally enable case-insensitive matching or regex mode.
  4. 4All matches are replaced instantly in the output.

Frequently Asked Questions

Does this tool support regular expressions?▾
Yes. Enable the 'Use regex' checkbox to use JavaScript regular expression patterns in the Find field. You can use capture groups, quantifiers, character classes, and other regex features.
How do I replace all occurrences?▾
The 'Replace all' option is enabled by default, which replaces every match in the text. Uncheck it if you only want to replace the first occurrence.
What happens with an invalid regex?▾
If you enter an invalid regular expression pattern, the tool will display a clear error message in the output area instead of silently failing.
Can I use capture groups in the replacement string?▾
Yes. When regex mode is enabled, you can reference capture groups in the replacement field using $1, $2, etc. For example, find '(\w+)@(\w+)' and replace with '$2: $1' to swap the parts around the @ symbol.