Deduplicate lists and text files while optionally preserving order.
Clean email lists, keyword lists, and log excerpts by removing repeated lines. Options let you trim whitespace and ignore case when matching duplicates.
Empty lines are treated like any other line. If duplicates exist, only the first empty line is kept when keep-order is on.
Yes. Turn off case-sensitive matching so “Apple” and “apple” count as duplicates.
Convert text to upper, lower, title, sentence, camel, snake, and more.
Text Tools
Count words, characters, sentences, and paragraphs instantly in your browser.
Text Tools
Count characters with or without spaces, plus UTF-8 byte size.
Text Tools
Compare two texts line by line and highlight additions and removals.
Text Tools
Generate MD5, SHA-1, SHA-256, and SHA-512 hashes from text in your browser.
Developer Tools
Test regular expressions with live matches, indices, and capture groups.
Developer Tools
