Text Processing
Writing, editing or cleaning text? Test regex with live highlighting, diff two passages side by side, count words and characters, convert case, preview Markdown, dedupe lines, or transliterate Chinese to pinyin.
Text Processing · 19 tools
Regex Tester
Test regular expressions with live matching and highlighted results. Supports common flags to help debug and v…
Text Diff
Compare two texts line by line with highlighted differences. Spot additions, deletions and edits quickly. Full…
Word Counter
Count characters, Chinese characters, English words, paragraphs and estimated reading time in real time. Fully…
Text Extractor
Pull emails, URLs, phone numbers, ID numbers, dates, amounts, IP addresses, UUIDs, numbers and hashtags out of…
Text Case Converter
Convert between camelCase, snake_case, kebab-case, CONSTANT_CASE and more. Essential for renaming identifiers.…
Simplified / Traditional Chinese
Convert between Simplified and Traditional Chinese with common regional wording differences handled. Fully pro…
Markdown to HTML Converter
Two-way conversion between Markdown and HTML. Markdown to HTML handles headings, emphasis, strikethrough, code…
Markdown Editor
Online Markdown editor with live preview, syntax highlighting and HTML export. Supports tables, fenced code bl…
Text Splitter and Merger
Split text by delimiter (including newlines, tabs and regex), by fixed character count, or every N lines — wit…
Text Deduplicator
Remove duplicates from text by line, word, sentence or paragraph, with case-sensitivity and order-preserving o…
Text Wrap and Unwrap
Reflow text to a column width — a CJK character counts as two columns, a Latin letter as one — breaking prefer…
Full-width Half-width Converter
Convert full-width digits, letters and punctuation to half-width and back, with per-category toggles (digits, …
Chinese Punctuation Converter
Swap Western and Chinese punctuation in either direction. Context protection keeps the dot in example.com, the…
Text Padding and Alignment
Pad every line to the same column width with left, right or centre alignment and a custom fill character — mea…
Chinese to Pinyin
Convert Chinese characters to pinyin with tone marks, tone numbers or no tones, with a custom separator and po…
Character Frequency Counter
Analyse how often each character appears, with options for case sensitivity and ignoring whitespace. Fully pro…
String Reverser
Reverse text as a whole, word by word or line by line. A fun and practical string utility. Fully processed in …
Remove Line Breaks
Strip or normalise line breaks: remove all breaks, convert them to spaces, drop empty lines or collapse consec…
Teleprompter
Teleprompter with auto-scroll, fullscreen, mirror mode, and adjustable font size and speed — great for recordi…
Text processing edits and analyses plain text, lists and lightweight markup: regex, diff, word count, case conversion, Simplified/Traditional Chinese, Markdown, teleprompter, dedupe, character frequency, pinyin and newline cleanup.