What Is Find & Replace?
Replacing every occurrence of a word or pattern across a block of text is something writers and developers do constantly — cleaning data, renaming things, reformatting. Doing it in a small editor without "replace all" is slow. This free Find & Replace tool swaps every match instantly in your browser, with optional regular expressions and case-insensitive matching, and shows a live match count.
Find & Replace is the classic editing operation of searching a body of text for every occurrence of a word or pattern and swapping it for something else — all at once. It comes in two flavours: a literal search that looks for exact characters, and a regular-expression (regex) search that matches flexible patterns. Add case sensitivity and a "replace all" sweep, and a task that would take dozens of manual edits becomes a single click.
Using the Tool
- Paste your text.
- Type what to find and what to replace it with.
- Optionally enable Regex or Ignore case, then copy the result.
Perfect For
- Developers refactoring — renaming a variable, updating an import path or changing a value everywhere it appears in a file.
- Data cleaning — stripping unwanted characters, normalising separators or replacing every comma with a tab in pasted records.
- Writers and editors swapping a name, term or spelling consistently across a long document without missing an instance.
- Reformatting — turning line breaks into spaces, collapsing duplicates, or reshaping a list using a regex pattern.
How Find & Replace Works
In literal mode the tool scans your text for the exact characters you typed and substitutes each match with your replacement. In regex mode it compiles your pattern into a regular expression and applies it globally, so every match is replaced in one pass; flags control whether the search is case-sensitive. Regular expressions let you match classes of text — digits, whitespace, word boundaries — rather than a fixed string.
Regex replacements can reference capture groups, so you can reorder or reuse parts of each match — for example turning "Last, First" into "First Last". If a pattern is invalid the tool simply makes no change rather than corrupting your text, so you can experiment safely.
Key Benefits
- Literal or regular-expression search.
- Live match count and instant preview.
- Runs in your browser — private and free.
Your Content Stays With You
Search and replace operations run completely in your browser using JavaScript. The text you're working with is processed locally on your device and is never sent to our servers.