Need to strip out specific lines from a log file, remove debug statements from code, or clean up blank lines from copy-pasted text? This free tool removes lines by text pattern, regular expression, or blank line rules — all instantly in your browser.
Delete any line containing a specific word or phrase. Great for filtering out TODO comments, debug statements, or unwanted labels.
Use full regular expression syntax to match complex patterns — timestamps, IP addresses, log levels, or any structured text.
Removes every line that contains no content, producing tightly packed text with no gaps.
Reduces runs of multiple consecutive blank lines to a single blank line, preserving paragraph separation.
Detects lines that appear empty but contain invisible spaces or tabs, and removes them. A "whitespace-only" line looks blank but has hidden space or tab characters — unlike a truly empty line which has zero characters.
Flip the logic to keep only lines that match your pattern and remove everything else — useful for extracting specific data from large files.
Choose between case-sensitive and case-insensitive matching for both text and regex modes.
See exactly how many lines match your pattern in real time before committing to the removal.
Enable Auto-fill to carry your output to the next tool. Navigate back and forward with full state restoration — input, output, and all settings are preserved.
Filter out DEBUG-level entries from application logs to focus on warnings and errors, using pattern matching to target specific log levels.
Remove lines starting with # or // from configuration files to see only the active settings.
Text copied from web pages or documents often has excessive blank lines. Remove all or collapse them to single blank lines for cleaner formatting.
Search and replace text with regex support.
Trim spaces, tabs, and collapse multiple spaces.
Delete repeated lines and keep only unique entries.
Extract email addresses and URLs from text.
Join multiple lines into continuous text.