Delete Duplicate Lines
Keep first, last or single occurrences with matching controls.
Text Tools
Clean, compare, count and reshape text with browser-based operations.
Choose the operation that matches your task. Each tool explains its limits, accepts local input and lets you copy or download the result. Your original files remain unchanged.
Duplicate Line Remover
Clean repeats and inspect their occurrence counts.
Remove Empty Lines
Remove blank records while retaining repeated content.
Sort Lines
Alphabetize text, reverse its order, or use natural numeric sorting.
Remove Line Breaks
Join text lines using spaces or your own separator.
Add Line Breaks
Replace a chosen separator with a new line while preserving the surrounding text.
Text Case Converter
Convert text to uppercase, lowercase, title case or sentence case on your device.
Find & Replace Text
Replace literal text once or everywhere, with optional case-insensitive matching.
Text Cleaner
Combine line deduplication, blank-line removal, trimming, space cleanup and sorting.
Remove Extra Spaces
Collapse repeated horizontal whitespace and trim each line without joining your paragraphs.
Line Counter
Count physical text lines, including blank records, using consistent newline rules.
Word Counter
Count whitespace-separated words in pasted text without sending the text to a server.
Character Counter
Count Unicode code points, including spaces and line breaks, in your text.
Text Diff Checker
Compare two versions line by line and identify added and removed content.
Text Reverser
Reverse text by visible character clusters or reverse the order of its lines.
Extract Unique Lines
Extract only lines that occur once, excluding every occurrence of repeated lines.
Extract Emails
Extract unique email-shaped addresses from text without contacting any address.
Extract URLs
Extract unique HTTP and HTTPS links from text without opening or fetching them.
Extract Numbers
Pull signed integers and decimal numbers from mixed text in their original order.
Prefix/Suffix Lines
Add literal text before and after every line while preserving line order.
Choosing a tool
Use one operation at a time and check the result before replacing important source data. CSV utilities parse structured records; text tools work on physical lines. Those are different when quoted CSV fields contain line breaks.
Where is processing performed?
Tool input and file contents are processed locally in your browser. Opening a page still sends ordinary page requests to the hosting provider.