Find & Replace
What Is Find & Replace?
Find and replace is a fundamental text-editing operation that searches for occurrences of a specific string or pattern and substitutes them with different text. This tool performs the operation instantly in your browser, supporting both simple text matching and powerful regular expression patterns. Unlike basic text editors, this tool shows you the replacement count and result in real time, making it ideal for bulk text transformations.
How to Use
Enter text in the input area, type the search term and replacement text. All matches are replaced instantly. Enable regex mode for pattern-based replacements. Toggle case sensitivity as needed.
Features
Plain text mode escapes special characters automatically. Regex mode supports full JavaScript regular expression syntax including capture groups ($1, $2, etc.). Case-sensitive mode matches exact letter casing only.
Common Use Cases
- Code refactoring — rename variables, functions, or class names across code snippets
- Data cleaning — standardize formats, remove unwanted characters, or fix inconsistencies
- Batch editing — update URLs, file paths, or configuration values in bulk
- Content migration — convert markup formats or update outdated terminology
- Log analysis — extract or transform specific patterns from log files
Tips
In regex mode, use capture groups with parentheses and reference them in the replacement with $1, $2, etc. For example, searching for (\w+)@(\w+) and replacing with $2/$1 swaps the parts around the @ symbol. Use \b for word boundaries to avoid partial matches. If you need to replace literal special characters like dots or brackets in regex mode, escape them with a backslash (e.g., \. or \[). Always preview the result before copying to ensure the replacement is correct.
Privacy
All processing happens in your browser. No data is sent to any server.