What is Find and Replace?
Find and replace is a text-editing feature that searches your content for a word, phrase or pattern and swaps every match with new text. Instead of hunting through a document by hand, you describe what to find and what to replace it with, and the change happens everywhere at once.
This online tool upgrades the classic feature with live match highlighting, regex and wildcard search, whole-word and case options, batch rules and undo/redo. Everything runs in your browser, so your text stays private. To measure the result, pair it with the Word Counter and Character Counter.
Pro-grade Editing
How it works
Paste your text
Drop in any document, code or list. Everything is processed locally in your browser, never uploaded.
Search
Type what to find and toggle match case, whole word, regex or wildcard. Matches highlight in real time.
Replace
Swap one match at a time with Next/Previous, or change every occurrence at once with Replace all.
Export
Undo any step, then copy or download the result as TXT, CSV or PDF when you’re done.
Key benefits
Regex & wildcard power
Go beyond plain text with full regular-expression and wildcard search, including capture groups in replacements.
Live highlighting
Every match is highlighted as you type, with a live counter and Next/Previous navigation between results.
Batch rules
Apply multiple find-and-replace rules in one pass to standardize terminology and clean up exports fast.
Undo & redo history
Experiment safely — every replacement and cleaning action is reversible with full undo and redo.
Private by design
All processing runs in your browser. Your text is never uploaded or stored — safe for confidential work.
Free, no sign-up
Unlimited use with no account, no email and no watermark. Open the page and start editing.
Common & developer use cases
Developers
Refactor variable names, reformat data, and clean logs or exports with regex and capture groups.
Content editors
Swap terminology across a whole document, fix recurring typos, and standardize spelling in seconds.
SEO specialists
Update keywords, links and brand mentions at scale while keeping content consistent and on-message.
Data cleanup
Normalize CSV and exported text, strip unwanted characters, and reformat rows before importing.
Marketers
Personalize templates, swap campaign tags, and bulk-edit copy variants without manual find-and-click.
Students & writers
Reformat citations, fix repeated phrasing, and tidy notes or drafts before submitting.
Regex guide for beginners
Regular expressions describe text patterns instead of exact words. Toggle “Regex” in the tool and use these building blocks — capture groups can be reused in the replacement field with $1.
| Pattern | Meaning | Example |
|---|---|---|
. | Any single character | c.t → cat, cot, cut |
\d | Any digit (0–9) | \d\d → 42, 99 |
\w | Any word character | \w+ → hello, user_1 |
\s | Any whitespace | a\sb → "a b" |
+ | One or more of the previous | go+ → go, gooo |
* | Zero or more of the previous | ab* → a, ab, abb |
? | Optional (zero or one) | colou?r → color, colour |
^ $ | Start / end of line | ^Hi → line starting with Hi |
[abc] | Any one listed character | [aeiou] → a vowel |
(…) | Capture group → $1 in replace | (\w+)@ → reuse with $1 |
Best practices
Preview before Replace all
Check the highlighted matches and the live counter first so a broad term doesn’t change more than you expect.
Use whole word for precision
Enable whole-word matching so “cat” doesn’t also rewrite “category” or “concatenate”.
Test regex on a sample
Try a pattern on a small selection first, then scale up. Capture groups ($1, $2) make reformatting effortless.
Lean on undo
Replacements are reversible — experiment freely, and step back instantly if a change goes too far.
Common mistakes to avoid
- Running Replace all on a short, common word and unintentionally changing it inside longer words.
- Forgetting case sensitivity, so “US” also matches the “us” inside other words.
- Writing an unescaped regex special character (like . or *) and matching far more than intended.
- Replacing across an entire document without previewing the highlighted matches first.
Frequently asked questions
Find and replace is a text-editing feature that searches your text for a word, phrase or pattern and swaps every match with new text. This online tool does it in real time, with live match highlighting, a match counter, and options for case sensitivity, whole-word matching and regular expressions — all in your browser.
Paste your text, type the word in the “Find” box and your new text in the “Replace” box, then click “Replace all”. Every match is swapped at once and the match counter updates instantly. To change matches one at a time, use the Next/Previous controls and the single “Replace” button.
Yes. Turn on the “Regex” option to search with full regular-expression patterns, including character classes, quantifiers and capture groups. You can reference captured groups in the replacement field with $1, $2, and so on. Invalid patterns are flagged with an inline error so nothing breaks.
Normal matching finds your text anywhere, so searching “cat” also matches “category”. Whole-word matching adds word boundaries, so “cat” matches only the standalone word “cat” and not part of a longer word. Combine it with case sensitivity for precise replacements.
Yes. Every replacement and cleaning action is added to an undo history, so you can step backward with Undo and forward with Redo. This lets you experiment safely and recover instantly if a replacement changes more than you intended.
Yes. The batch rules panel lets you add several find/replace pairs and apply them all in sequence with one click — ideal for cleaning up exports, standardizing terminology, or reformatting large documents in a single pass.
No. All searching and replacing happens locally in your browser using JavaScript. Your text never leaves your device, is never uploaded, and is never stored on our servers — making the tool safe for confidential, academic and commercial content.
Yes. The tool is optimized for large inputs and processes matches efficiently. For very large texts, live highlighting is simplified to keep the interface fast, while replace-all and export continue to work on the full document.
Written by Omnitool Editorial Team
Our content is crafted by software utility engineers and digital publishing experts to guarantee technical accuracy, regex correctness, and complete user privacy. Co-reviewed by senior SEO strategists.