Search & Replace

About Search & Replace Tool

Search & Replace is a pure frontend text processing tool that requires no data upload to servers. It helps developers and writers quickly find and replace text content.

Core Features

• Multiple Search Modes —Case sensitivity, regex, whole word, and multiline modes for flexible searching
• Three Replace Strategies —Replace next (one-by-one), Replace all (one-click), Multi-rule batch replacement
• Live Highlighting —All matches highlighted instantly as you type
• Case Transform —Apply UPPERCASE, lowercase, Capitalize, or camelCase to replacements
• Replacement Preview List —Lists all match positions with context, click to navigate
• Multi-Rule Batch —Add multiple search/replace rules and execute them all at once
• Text Diff Comparison —Side-by-side before/after comparison with diff highlighting
• 12 Regex Templates —One-click fill for digits, email, URL, IP, phone, and more
• Import/Export Rules —Save replacement rules as JSON files for reuse
• Line Operations —Delete or extract lines matching your search
• Multi-Step Undo —Complete operation history stack with unlimited undo
• Statistics Dashboard —Real-time display of match count, replacements, character count, word count, and line count

Use Cases

• Code Refactoring —Batch rename variables and functions with precise regex matching
• Text Cleanup —Remove extra spaces, unify punctuation, batch edit text
• Data Cleaning —Extract and replace specific format text data using regex
• Multi-File Editing —Export rules as JSON and apply them to multiple files

How to use

• 1. Paste the text and enter find/replace values
• 2. Enable regex or multiline if needed
• 3. Preview matches, then replace all

Example

Replace every `foo` with `bar` → preview 12 matches, then apply

FAQ

What if my regex is wrong?
Preview first; only apply after checking the matches.

Can I undo?
The original text stays available; paste it back to restore.