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Find & Replace (Regex) Tool
A find and replace tool rewrites every occurrence of a string or pattern across a block of pasted text in one pass, which is how SEOs and developers clean up URL lists, redirect maps, title columns, schema snippets, and log exports without hand-editing line by line. Switching on regex turns it into a pattern engine: one expression with a $1 backreference can restructure thousands of rows that a literal search-and-replace would never reach.
This tool runs the replacement live as the text is typed, toggles between literal and regex modes, exposes the standard g, i, m, and s flags, and shows a real match count with each substituted segment highlighted. It is free and entirely browser-based, so nothing pasted into it is ever uploaded.
Regex on. Use $1, $2… in the replacement to reuse captured groups, and $& for the whole match.
🔒 Private: everything runs in your browser. Nothing you paste is uploaded.
How to use the find and replace tool
Paste your text, type what to find and what to replace it with, and the result updates on every keystroke. Leave regex off for plain text edits, or switch it on to match patterns and reuse captured groups.
Literal mode handles the everyday edits safely
With the regex toggle off, the Find field is matched exactly as typed and every special character is escaped automatically, so a dot, dollar sign, or bracket is treated as that literal symbol rather than a pattern. This is the right mode for swapping a brand name across copy, normalising a path prefix in a URL list, or fixing a repeated typo. The match count tells you how many substitutions were made, and the highlighted output shows precisely where each one landed before you copy the result back out.
Regex mode rewrites structured text in one expression
Switch regex on and the Find field becomes a JavaScript regular expression. Capture groups in parentheses can be replayed in the replacement with $1, $2, and so on, while $& reuses the whole match. The flag toggles map to native behaviour: g replaces every occurrence, i ignores case, m makes ^ and $ match each line, and s lets . span newlines. An invalid pattern surfaces a red error pill instead of failing silently.
Common SEO jobs this tool solves quickly
Bulk-prefixing a column of slugs with a folder, stripping UTM parameters from a query-string export, converting http links to https, renaming a category across a redirect map, or pulling a stale year out of hundreds of title tags are all one expression each. Because the count and highlight confirm exactly what changed, the edit is auditable before it leaves the page, which matters when the output feeds a sitemap, a redirect file, or a structured-data block where a single wrong character breaks parsing.
Find and replace frequently asked questions
Q1What is the difference between literal and regex mode?
Literal mode matches the Find text exactly as typed and escapes every special character for you, so a period or bracket means that symbol and nothing more. Regex mode treats the Find field as a pattern, unlocking wildcards, character classes, anchors, and capture groups. Use literal for plain swaps and regex when you need to match a shape of text rather than a fixed string.
Q2How do I reuse part of a match in the replacement?
Turn regex on and wrap the part you want to keep in parentheses to create a capture group. In the Replace field, reference it with a dollar sign and its number, so the first group is dollar-one, the second is dollar-two, and so on. The token dollar-ampersand inserts the entire match. This lets you reorder, reformat, or wrap matched text without retyping it.
Q3What do the g, i, m, and s flags do?
The g flag is global and replaces every occurrence rather than only the first. The i flag makes matching case-insensitive. The m flag is multiline, so the anchors that mark the start and end of a line match at every line break instead of only the whole text. The s flag is dotall, letting the dot character also match newline characters across multiple lines.
Q4Is my pasted text sent to a server?
No. Every match and replacement runs in your browser with client-side JavaScript, and nothing you paste into the text, Find, or Replace fields is uploaded, logged, or stored. The tool keeps working after the page has loaded even with no connection, which makes it safe for confidential URL lists, internal exports, or unpublished content.
Q5Why does my regular expression show an error?
The red error pill means the pattern is not valid JavaScript regex syntax, usually an unmatched parenthesis or bracket, a stray backslash, or an incomplete group. The message names the problem so it can be corrected. Until the pattern is valid the original text is left untouched, so a broken expression never silently damages your input.
