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Word counts, diff, conversion, dedupe and frequency. 18 free online tools, all running locally in your browser.
Online Word CounterFree online word counter: total words, characters, Chinese and English counts, paragraphs, sentences and lines, plus word frequency analysis and reading time estimate.
Case ConverterFree case converter: type text once and get six naming formats at once — uppercase, lowercase, Title Case, camelCase, snake_case and kebab-case. Click to copy.
Text Dedupe & SortFree text dedupe and sort tool: remove duplicate lines, drop empty lines and trim whitespace in one click, with case-insensitive dedupe, ascending/descending sort, and a count of lines removed.
Text Diff ToolFree online text diff: compare two passages line by line, mark added, removed and unchanged lines, and report counts plus a similarity score.
Markdown to HTMLPaste Markdown on the left, see it rendered instantly, and copy the clean HTML source underneath.
Word Frequency CounterPaste text to get characters, characters without spaces, CJK characters, words, lines, sentences, plus a ranked word frequency table with percentages.
Placeholder Text GeneratorGenerate Lorem Ipsum or Chinese placeholder text by paragraph, sentence or word, with adjustable counts, reshuffling and a live word count.
URL Slug GeneratorTurn any headline into a clean URL slug: strip accents and punctuation, collapse separators, keep or drop CJK, and cap the length.
Line SorterFour sort modes and five cleanup switches — drop blanks, dedupe, trim, ignore case, reverse — all done in the browser.
RMB Amount in WordsConvert amounts to Chinese financial uppercase following accounting rules — zero handling, jiao/fen conventions and rounding — plus the value in fen.
Chinese to Pinyin3,755 common characters, with tone marks, plain pinyin or initials — polyphonic characters show every candidate reading.
Whitespace CleanerEight switches you can combine: trim, collapse spaces, drop blank lines, tabs to spaces, strip BOM, CRLF to LF, single trailing newline.
Text ReverserReverse all characters, the word order, the line order, or characters within each line — switch modes in real time.
Reading Time EstimatorCounts characters, words, sentences and paragraphs, then estimates reading and speaking time at 300 chars or 200 words per minute.
Find and ReplaceFind and replace with regular expressions, ignore case, whole-word matching, and $1 $2 group references in the replacement.
Random DrawDraw winners, shuffle a list, or draw without repeats — with weighted picks, all done locally.
Simplified ⇄ Traditional ChineseTwo-way simplified / traditional Chinese conversion with phrase-level disambiguation for characters like 干杯, 头发 and 皇后.
Line Number ToolAdd line numbers to multi-line text (custom start, step and zero-padding), or strip existing numbers automatically.