Find and Replace Text

About Find and Replace Text

Welcome to the Find and Replace Text tool, a professional-grade text editor utility designed for efficient text manipulation. Whether you need to make simple word substitutions, perform complex pattern matching with regular expressions, or clean up large documents, this tool provides powerful features with an intuitive interface.

Key Features

How to Use

1. Enter your text: Paste or type text into the input area, or upload a text file by clicking "Upload" or dragging a file onto the input area.
2. Specify what to find: Enter the text or pattern you want to locate. Use the options to enable case sensitivity, whole word matching, or regular expressions.
3. Enter replacement text: Type the text that should replace each match. Leave empty to delete all matches.
4. Preview matches: Click "Find" to highlight all matches in your text. Use the navigation buttons to jump between matches.
5. Execute replacement: Click "Replace All" to perform the replacement. Review the Visual Diff tab to see all changes.
6. Copy or download: Use the "Copy" button to copy results to clipboard, or "Download" to save as a file.

Regular Expression Guide

Regular expressions (regex) are powerful patterns for matching text. Enable the "Regex" option to use these patterns:

Regex Replacement Examples

• Swap words: Find (\w+) (\w+), replace with $2 $1 to swap "John Doe" to "Doe John"
• Add prefix: Find ^(.+)$, replace with PREFIX: $1 to add prefix to each line
• Remove numbers: Find \d+, replace with empty string to remove all numbers
• Format dates: Find (\d{2})/(\d{2})/(\d{4}), replace with $3-$1-$2 to convert MM/DD/YYYY to YYYY-MM-DD

Use Cases

Code Editing

• Rename variables, functions, or class names across your codebase
• Update import statements or file paths
• Convert between naming conventions (camelCase to snake_case)
• Add or remove code comments in bulk

Data Processing

• Clean and standardize data formats (dates, phone numbers, currencies)
• Remove unwanted characters or whitespace
• Convert between delimiters (CSV to TSV, etc.)
• Extract specific patterns from text

Content Editing

• Find and fix common typos or misspellings
• Update repeated phrases throughout a document
• Standardize formatting and terminology
• Prepare text for translation or localization

Frequently Asked Questions

How do I use the Find and Replace tool?

Enter or paste your text in the input area, type the text you want to find in the Find field, enter the replacement text in the Replace field, and click Replace All. You can also use options like case-sensitive matching, whole word matching, or regular expressions for advanced searches.

What are regular expressions and how do I use them?

Regular expressions (regex) are powerful patterns for matching text. Enable the Regex option and use patterns like \d+ to match numbers, [A-Za-z]+ to match words, or \s+ to match whitespace. The tool provides common regex templates for emails, phone numbers, URLs, and dates.

Can I undo a replacement?

Yes, the tool includes full undo and redo functionality. After making replacements, click the Undo button to revert changes. You can undo multiple operations and use Redo to restore them. The operation history shows all your recent actions.

How do I find and replace in large files?

Click the Upload File button or drag and drop a text file onto the input area. The tool handles large text files efficiently and displays character, word, and line counts to help you track your document size.

What does the Visual Diff feature show?

The Visual Diff feature displays a comparison of your original text and the result after replacements. Removed text is highlighted in red with strikethrough, and added text is highlighted in green, making it easy to review changes before copying the result.

Additional Resources

• Regular Expressions - Wikipedia
• JavaScript Regular Expressions - MDN

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