What regex flavor is supported?

JavaScript regex (ECMAScript). Supports lookaheads, character classes, capture groups.

How do I use capture groups in the replacement?

Use $1, $2, etc. in the replacement field. Example: find (\w+)@ replace with $1[at].

Find and Replace

Replace any pattern in your text — exact match or regex, case-sensitive or not.

Input

Case-insensitive Regex

Result

How to use Find and Replace

Paste your text.
Type what to find and what to replace it with.
Toggle case-insensitive or regex mode if needed.
Copy the result.

What is Find and Replace?

Find and replace is the editor's Swiss army knife — fix typos across long documents, normalize delimiters, restructure CSV columns, or extract data with regular expressions. This tool gives you both modes side by side and shows how many replacements happened.

FAQ

What regex flavor is supported?: JavaScript regex (ECMAScript). Supports lookaheads, character classes, capture groups.
How do I use capture groups in the replacement?: Use $1, $2, etc. in the replacement field. Example: find (\w+)@ replace with $1[at].

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