What is Find & Replace?
Free online find and replace tool. Bulk text replacement with regex support, case sensitivity, and whole-word matching. Real-time replacement count. Suitable for code refactoring, document editing, and data cleaning.
▶Use Cases4 scenarios
- ◆Code refactoring
- ◆Document editing
- ◆Data cleaning
- ◆Batch modification
▶How to Use4 steps
- 1Paste text
- 2Enter find and replace terms
- 3Choose match options
- 4Click Replace to see result
▶Features4 features
- ✓Regex support
- ✓Case sensitive
- ✓Whole-word match
- ✓Replacement count
▶FAQ7 questions
What is Find & Replace?
An online find & replace. Bulk text replacement with regex support. Supports multiple input formats with one-click copy or download. All operations run locally in your browser — no uploads.
Does it support regex?
Yes, JavaScript regex syntax is fully supported.
Can I undo replacements?
Refreshing the page restores the original text. Consider backing up first.
What errors can Find & Replace detect?
Finds and replaces specified content in text, with regex support.
How large of a file can I validate?
Files up to 10MB work smoothly. Larger files may slow down your browser.
Is data uploaded to a server?
No. All validation happens locally in your browser. Data never leaves your device.
Can it auto-fix errors?
Yes. Automatically replaces all matches.