Overview
Introduction
Swapping every occurrence of one piece of text for another is one of the most common text edits, and doesn't need regex complexity for a simple literal match.
It runs entirely client-side, so nothing you paste is ever uploaded to a server.
What Is Find & Replace Tool?
A find-and-replace tool that swaps every exact, case-sensitive occurrence of your find text with a replacement.
It runs entirely client-side as part of this site's String Tools collection, so nothing you paste is ever uploaded to a server.
How Find & Replace Tool Works
The tool splits the input on every occurrence of the find text and rejoins the pieces with the replacement, equivalent to replaceAll() but implemented via split/join for broad compatibility.
The transformation happens synchronously in JavaScript the moment you type, with no network round trip involved.
When To Use Find & Replace Tool
Use it for a quick, exact text substitution without needing to write a regex.
It's a fast way to get the answer without opening a code editor, a REPL, or writing a one-off script just to check.
Often used alongside Regex Match Extractor and String Truncator.
Features
Advantages
- No regex knowledge required for literal substitutions.
- Handles find text containing regex-special characters safely, since matching is literal.
- Replaces in a single pass over the original text, so a replacement that happens to contain the find term is not matched again and replaced a second time.
Limitations
- Case-sensitive exact matching only; no pattern or case-insensitive support.
- Applies to every occurrence at once, with no way to skip a particular instance or step through replacements one at a time.
Examples
Best Practices & Notes
Best Practices
- Use Extract Regex Matches or a dedicated regex tool if you need pattern-based or case-insensitive replacement.
- Make the find term as specific as you can, including surrounding punctuation or spaces, so it does not match inside longer words unintentionally.
- Keep the original text until you have checked the result, since every occurrence changes at once and there is no undo.
Developer Notes
The implementation is `input.split(find).join(replace)` rather than a regex-based replaceAll(), which avoids needing to escape regex-special characters in the find text.
Find & Replace Tool Use Cases
- Correcting a repeated typo across a document
- Swapping a placeholder value throughout a template
- Removing every occurrence of unwanted text
Common Mistakes
- Expecting case-insensitive matching by default.
- Choosing a short find term that also occurs inside longer words, so replacing 'in' also alters 'point' and 'finish'.
Tips
- Leave the replacement blank to delete every occurrence of the find text.
- Because matching is literal, a find term containing characters such as . or * is searched for exactly as typed, with no escaping required.