Filter Lines

Free Online Filter Lines Tool

Filter Lines is a powerful text processing tool that filters lines from your text based on regex patterns, keywords, or conditions. Our free online tool supports include mode (keep matching lines) and exclude mode (remove matching lines), keyword and regex pattern matching, case-sensitive and case-insensitive filtering, and line number display. Perfect for extracting specific lines from logs, filtering data by keywords, removing unwanted lines, processing text based on patterns, or analyzing large text files. Whether you're processing log files, filtering data files, extracting specific content, or cleaning up text, this tool saves time by automating line filtering. No software installation required – it works directly in your browser and your text never leaves your device.