Text Line Filter
Filter text lines based on specified conditions, supporting multiple filter conditions, regular expressions, contains match and exact match modes. Suitable for log analysis, data cleaning, content filtering and other scenarios.
Tool Introduction
Feature Overview
Text line filter tool can filter text lines based on specified conditions, keeping or removing matching lines. Supports multiple filter conditions, regular expressions, contains match and exact match modes. Suitable for log analysis, data cleaning, content filtering and other scenarios.
Typical Scenarios
- Log Analysis: Filter lines containing specific keywords or error messages from large amounts of logs.
- Data Cleaning: Remove lines containing invalid data or specific markers.
- Content Filtering: Extract content that meets conditions from text lists.
- Configuration File Processing: Filter specific configuration items in configuration files.
Usage Tips
- Using regular expressions can achieve more complex matching patterns, such as matching lines that start or end with specific characters.
- When using AND mode with multiple conditions, ensure all conditions can match the target lines.
- Using OR mode can quickly filter lines containing any one of multiple keywords.
- The ignore case option is very useful when processing case-insensitive data.
Usage Instructions
Text Input: Paste or enter text content to filter in the left input box, with each line processed as one record.
Filter Conditions: Supports multiple filter conditions, enter one condition per line. You can choose to match all conditions (AND) or match any condition (OR).
Regular Expression: After checking, you can use regular expressions for complex pattern matching, such as ^start, end$, \d+numbers, etc.
Match Mode: Contains match: matches if the line contains the keyword. Exact match: matches only if the entire line content is exactly the same as the keyword.
Logic Relationship: Match all conditions (AND): must satisfy all conditions simultaneously. Match any condition (OR): satisfies any one condition.
Export Function: Supports one-click copy result to clipboard, or download as TXT file with timestamp.
Frequently Asked Questions
What is a text line filter tool?
Text line filter tool can filter text lines based on specified conditions, keeping or removing matching lines. Suitable for log analysis, data cleaning, content filtering and other scenarios.
What's the difference between contains match and exact match?
Contains match matches if the line contains the keyword, exact match requires the entire line content to be exactly the same as the keyword.
What regex syntax is supported?
Supports JavaScript regular expression syntax, such as ^line start, $line end, \dnumbers, \walphanumeric, .*any character, +one or more, etc.
How to use multiple filter conditions?
Enter one condition per line in the filter conditions box. You can choose AND mode (satisfy all conditions simultaneously) or OR mode (satisfy any condition).
What's the difference between keep match and remove match?
Keep match only keeps matching lines, remove match removes matching lines and keeps non-matching lines.
How about data security?
All processing is done locally in the browser, no data is uploaded to the server, completely protecting user privacy.