Search and replace across text with regex, whole-word and case options.
Find and replace text online with a live match count, whole-word matching, case sensitivity and full regular-expression support with capture groups. Invalid patterns show a clear error instead of breaking. Nothing is uploaded.
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Click the process button and wait for results.
Download your output using the download button.
Without it, replacing "cat" also hits "category", "concatenate" and "location". This is the classic find-and-replace disaster — a quick substitution silently corrupting dozens of unrelated words. The live match count is worth checking before you commit: if the number looks too high, it probably is.
When the thing you are matching varies. Regex handles patterns — any number, any email address, any date format, text between two markers. It also enables capture groups, so you can restructure rather than merely substitute, such as converting a list of names from "Last, First" to "First Last".
No, everything runs in your browser. That is the point for this kind of tool: find-and-replace is usually applied to real content — internal documents, customer data, source code, draft copy — and pasting any of that into a service that uploads it would be a genuine problem.
Yes, Find and Replace is completely free. No signup, no account, and no watermark on outputs. A Pro tier is available for 100 AI ops/day and larger file sizes.
Find and Replace runs entirely in your browser. Your file is never uploaded — it is read, processed and saved locally, so it never reaches our servers or anyone else's. You can disconnect from the internet after the page loads and it still works.
Live match count: The number of replacements updates as you type, so you can tell straight away whether your pattern is too broad or matching nothing at all — before committing the result.
Whole word matching: Without it, replacing "cat" also hits "category" and "concatenate". Whole-word mode requires a word boundary on both sides, which is almost always what you want for names and terms.
Regular expressions: Enable regex for patterns — \d+ for digits, ^ and $ for line ends, capture groups referenced as $1 in the replacement. An invalid pattern shows a clear error instead of breaking the page, so you can fix it as you type.
Privacy: Runs locally in your browser. Safe for contracts, logs, customer data and anything else you should not paste into a server-side tool.