Find and Replace Online
Find and replace text with support for regular expressions — all in your browser.
What Is Find and Replace?
Find and Replace is a free online tool that find and replace text with support for regular expressions — all in your browser. No files are uploaded — everything is processed locally on your device.
This find and replace online tool searches for specific words, phrases, or patterns in your text and replaces them with new content. It supports both simple text matching and powerful regular expressions for complex pattern matching. Our tool processes everything in your browser, making it safe to work with confidential documents, code, and data.
Privacy guarantee: Find and Replace processes all files directly in your browser using WebAssembly. No data is uploaded to any server, no information is collected, and the tool works offline after loading. Unlimited usage with no signup, no watermarks, and no file size limits.
How to Use Find and Replace
Paste your text
Enter or paste the text you want to search through in the main input area.
Enter search and replace terms
Type the text or regex pattern to find and the replacement text.
Apply replacements
Preview highlighted matches, then apply the replacement to all matches or selectively.
Why Use Our Find and Replace Tool?
Frequently Asked Questions
Does the tool support regular expressions?
Yes. You can toggle regex mode to use full regular expression syntax for pattern matching. This supports capture groups, lookaheads, character classes, and other advanced regex features.
Can I replace text in a case-insensitive way?
Yes. Toggle the case-sensitivity option to match text regardless of letter case. For example, searching for "hello" will match "Hello", "HELLO", and "hello" when case-insensitive mode is enabled.
Is there a limit on how much text I can process?
There is no hard limit imposed by the tool. The practical limit depends on your browser and device memory. Most users can comfortably process documents with hundreds of thousands of characters.
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