Text Tools
Text diff, conversion, and analysis tools
10 tools
Text Diff Checker Free online tool to compare two texts and highlight added, deleted, and changed lines. It runs line-by-line comparison with the Myers diff algorithm, the same family Git uses, and supports inline diff within lines.
Case Converter Free online case converter that instantly transforms text into camelCase, snake_case, kebab-case, PascalCase, UPPER and lower, ideal for renaming variables and identifiers in code.
Sort & Remove Duplicates Free online tool to sort text lines alphabetically or with natural sort and remove duplicate lines, with options for sort direction, case sensitivity, empty-line removal and statistics showing how many duplicates were removed.
Add/Remove Line Numbers Free online tool to add line numbers in front of each line of text or strip existing ones, with a custom starting number and separator for code, logs, or lists.
Reverse Text Free online text reverser that flips text by characters, words or lines, handles emoji and multibyte characters correctly, supports Korean and other Unicode scripts, and includes palindrome detection for any input.
Lorem Ipsum Generator Free online tool to generate Lorem Ipsum dummy text by words, sentences, or paragraphs in the exact amount you need for design mockups and layout testing.
String Length Calculator Free online tool to calculate string length, UTF-8 and UTF-16 byte size, line count, and word count in real time. Emojis are counted by Unicode code point, handy for SMS limits.
Markdown Preview Free online tool to preview Markdown in real time and convert it to HTML, showing exactly how headings, tables, code blocks, and links render as you type.
String Escape/Unescape Free online tool to escape and unescape strings for 7 languages: JavaScript, Python, Java, Go, PHP, SQL, and HTML. Convert special characters into \n, \t and similar, or restore them.
Find & Replace Free online find and replace tool for text and code. Search with plain text or regular expressions, toggle case sensitivity and replace all matches at once, right in your browser.