Text & Language

Compare two texts and highlight word-level differences

Count word occurrences and percentages in text

Find and extract phone numbers from text

Create random names with emails for testing

Search Unicode characters by code point, hex value, decimal

Escape text for safe use in JavaScript string literals

Count characters, code points, UTF-8 bytes, words, and lines

Compute Soundex phonetic codes for words

Flags -ly adverbs and adverb-verb pairs that lean on a weak verb, and scores how dense they are; a suggestion, not a rule, since adverbs are not banned

Compare two texts using Levenshtein, Jaccard, cosine

Compute Flesch-Kincaid, Gunning Fog, Coleman-Liau, SMOG

Find and extract email addresses from any text

Create placeholder text in words, sentences, or paragraphs

Compare UTF-8 bytes and UTF-16 code units for any text

Convert Unicode domain names and text to Punycode (IDN) encoding

Repeat any text or character N times

Compute Metaphone phonetic codes for words

Finds cliches and stock phrases from a built-in list and reports where each one starts, as a suggestion rather than a correction

Detect and highlight matching passages between two texts

Create word or character n-grams with frequency counts

Identify important keywords from text using frequency-based scoring

Strip Byte Order Mark characters from text

Convert text to \\uXXXX Unicode escape notation

Replace Latin characters with visually identical Unicode homoglyphs

Works out a rough IPA transcription of English text from spelling rules, plus the NATO phonetic alphabet spelling of the same text

Flags likely passive constructions, a be-verb followed by a past participle, and gives the percentage of sentences that contain one, as a suggestion rather than a correction

Count characters, words, sentences, paragraphs, and more

Randomly rearrange letters in a word or phrase

Examine each character's Unicode code point, UTF-8 bytes

Encode text to HTML entities

Wrap text at a specified column width

Splits a word into prefix, root and suffix by matching it against tables of common English affixes, and gives a plain-language meaning for each part found

Shows the distribution of sentence lengths, the longest sentence, and a variety score, as a description of the prose rather than a correction

Count letter occurrences and percentages in text

Find and extract hashtags from social media text

Analyze text encoding characteristics and compatibility

Convert HTML entities back to readable text

Prepend or append text to every line

Finds words that rhyme with a given word by comparing spelling endings against a fixed word list, not a pronunciation dictionary

Flags hedges and fillers such as just, very, really, actually, basically and quite, and where each one sits, as a suggestion rather than a correction

Calculate how long it takes to read any text

Find and extract IPv4 and IPv6 addresses from text

Convert text to ISO-8859-1 byte values or byte values back to text

Convert JavaScript escape sequences back to readable text

Add sequential line numbers to text

Finds transition and connective words from a built-in list and flags sentences where two or more cluster together, as a description rather than a correction

Compare vocabulary overlap between two texts using Jaccard

Convert text to Morse code dots and dashes

Escape text for safe embedding in JSON strings

Search and substitute text with literal or regex patterns

Flags said-bookisms from a built-in list and adverb-laden dialogue tags like "said softly", as a suggestion rather than a correction

Find and extract all numeric values from text

Spell out text using the NATO/ICAO phonetic alphabet

Convert Punycode-encoded internationalized domain names (IDN) back

Remove leading and trailing whitespace from text

Works out the ratio of content words to total words, a rough measure of how dense the prose is, against a built-in list of function words

Identify the language of any text using trigram analysis

View ASCII character codes with decimal, hex, octal

Decode \\uXXXX and \\u{XXXXXX} Unicode escape sequences back

Normalize spaces, tabs, and line endings in text

Converts a heading to AP, Chicago and MLA title case side by side, so you can see where these style guides genuinely disagree

Find and extract all web links from text

Compare UTF-16 code units and UTF-8 bytes for any text

Convert JSON escape sequences back to readable text

Shorten text to a maximum length with ellipsis

Finds runs of three or more words sharing an initial letter, skipping small connecting words, as a description rather than a correction

Find and parse dates from any text

Apply the ROT13 substitution cipher to text

Builds a writing prompt from a character, a situation and a constraint, picked deterministically from a seed so the same seed always gives the same prompt

Find and extract @mentions from social media text

Sort lines of text alphabetically, numerically, naturally

Estimates syllables per word and in total using a vowel-group heuristic, and checks whether three lines of text scan as a 5-7-5 haiku

Verify if text reads the same forwards and backwards

Picks a story or article opening line from a genre-specific phrase bank, chosen deterministically from a seed so the same seed and genre always give the same line

Align delimited text into evenly spaced columns

Breaks text into sentences and reports the length, an estimated Flesch-Kincaid reading grade, and whether each one is likely passive, then points out the hardest sentence to read by grade level

Strip blank lines from text

Randomly reorder lines of text

Reverse characters, word order, or line order

Remove duplicate lines from text

Convert text to URL-friendly slugs

Transform text between camelCase, PascalCase, snake_case