Text Replacer

Professional text replacement tool supporting normal text and regex replacement, with file upload support

File Upload(Optional)

Input Text

Replace Result

Search and Replace

Search Text

Replace With

Replace Options

Use Regular Expression

Ignore Case

Replace All

Match Count

Replace Count

Original Characters

Result Characters

Usage Instructions

Basic Features

Normal Text Replace

Directly enter text content to find and replace

Regular Expression Replace

Use regular expressions for complex pattern matching and replacement

File Upload Processing

Support uploading text files for batch processing

Regular Expression Examples

Match email address：

\b[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Z|a-z]{2,}\b

Match phone number：

1[3-9]\d{9}

Match numbers：

\d+

Match whitespace：

\s+

Regex Flags Explanation

Global match

Global match - Find all matches in the text rather than stopping after the first match. Without this flag, only the first occurrence will be replaced.

Case insensitive

Case insensitive - Ignore uppercase and lowercase differences when matching. For example, pattern 'abc' will match 'ABC', 'Abc', 'aBc', etc.

Multiline mode

Multiline mode - Changes the behavior of ^ and $. By default, they match the start/end of the entire string. With this flag, they match the start/end of each line.

Dot matches newline

Dot matches newline - By default, the dot (.) matches any character except newline (\n). With this flag, dot will also match newline characters.

Unicode mode

Unicode mode - Enables full Unicode support. Required for correctly handling Unicode characters like emojis, Chinese characters, and surrogate pairs.

Sticky match

Sticky match - Matches only at the exact position indicated by the lastIndex property. Unlike global flag, it doesn't search forward for the next match.

Usage Scenarios

Data Cleaning

Clean and standardize data format, remove unwanted characters

Code Refactoring

Batch modify variable names, function names or code structure

Document Processing

Unify document format, replace specific content or markers

Notes

When using regular expressions, ensure the syntax is correct. Incorrect regex may cause unexpected results
It is recommended to test on a small scale before processing important files
Large file processing may take a long time, please be patient
Supported file formats: .txt, .csv, .json, .xml, .log, .md
File size is recommended not to exceed 10MB for optimal performance