Text & AI
Text and AI tools that do real work on your words. Summarise, rewrite, simplify, expand, translate, analyse sentiment, extract structure and more — the everyday language jobs a team actually needs. Try them in your browser or wire them into your product by API.
Parentheses / brackets balance checker
Paste text and find out whether every (, [ and { closes in the right order: (a[b]) is balanced, with a maximum depth of 2.
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Path parts splitter
Paste /home/a/file.tar.gz and get its parts: folder /home/a, file name file.tar.gz, name file.tar, extension .gz and root /.
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Template placeholder extractor
Paste Hi {{name}} and {{name}} and get one placeholder, name, counted once: every distinct gap in your template, with nothing filled in.
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ROT47 encoder/decoder
«Hello» becomes «w6==@»: each printable ASCII character shifts 47 places around a circle of 94, and running the result through again restores the original.
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SemVer compare (2.0.0)
1.0.0 against 1.0.1 gives −1: the first version ranks lower. The comparison follows Semantic Versioning 2.0.0 to the letter, so you never have to sort version…
Free · Runs in your browser
Shell escape (POSIX)
Turn any text into a safe shell argument: «it's» comes out as 'it'\''s', which bash reads back as exactly it's.
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UTF-8 hex encoder
Type «Hi» and get 48 69: the two UTF-8 bytes of your text, each written as two hexadecimal digits.
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Call-to-action strength checker
The sample trial sign-up phrase scores 93 of 100: 40 of 40 for opening with the verb “start”, 35 of 35 for clarity and 18 of 25 for the cue “today”.
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Check email subject line length
“Your order ships tomorrow morning” has 33 characters, so it fits both the 40-character mobile preview and the 70-character desktop one.
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Check readability for a target audience by grade level
A grade level of 7.4 for the general public falls inside the 6 to 8 range, so it matches; children expect grades 1 to 5 and technical readers 9 to 14.
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Classify text overall tone from a custom word lexicon
In the sample request, three formal words, one urgent and one friendly give a formal tone with a confidence of 0.6, that is 3 of 5 matches.
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Word count by paragraph
In a sample with paragraphs of 4, 12 and 2 words, the average is 6, so the 12-word paragraph is flagged far above average and the 2-word one far below.
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Check gender-neutral language
Give it your glossary and a draft: in the sample text, “chairman” is flagged twice with “chairperson” as the neutral choice and “fireman” once with…
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Sentence grammatical complexity score
A 20-word sentence with “because”, “but” and “that” scores 75 of 100: 45 points for three connectors plus 30 for length, which rates it very complex.
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Apply AP, Chicago, or APA title capitalization rules
In Chicago style, “a tale of two cities: writing in the modern world” becomes “A Tale of Two Cities: Writing in the Modern World”.
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Detect nearby word repetition in your writing
In the sample sentence, “final” appears at word 2 and again at word 10, exactly 8 positions apart, so a window of 8 flags it.
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Compare text line differences
Compare alpha, beta, gamma with alpha, beta updated, gamma, delta and you get 2 lines added, 1 removed and 2 unchanged, each with its line number.
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Compute text readability score
Paste English text and see its Flesch Reading Ease and grade level: «The sun is warm. Birds sing in the trees.» scores 117.67 and −2.03, from 2 sentences, 9…
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Repeat text N times with an optional separator
Type «echo», choose 3 copies and the separator « | », and you get «echo | echo | echo», 18 characters, with separators only between copies, never at the ends.
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Scramble word letters
«generation» with the seed «kit-2026» always becomes «gateeonrin»: the first and last letters stay, the 8 inside letters are shuffled, and the same seed gives…
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Split text into columns for balanced side-by-side display
Seven lines in three columns come out as three, two and two: the groups never differ by more than one line, the earlier columns take the extras, and blank lines…
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Wrap text to a fixed line width
Set a width of 40 and a long sentence comes back as 3 lines, none wider than 40 characters and no word cut in half.
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Add line numbers to text
Start at 8 and a three-line text is numbered 8, 9 and 10, with the single digits padded by a space so the separator bars form a straight column.
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Lorem ipsum generator
Ask for exactly 12 words with seed 7 and you get the same placeholder line every time, starting with Lorem ipsum dolor sit amet.
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Generate random words
Ask for five English words with seed 42 and you always get breeze, pearl, dance, year and unity: real words, never repeated, drawn from lists in six languages.
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Add strikethrough to text
Type «Hello, World!» and get H̶e̶l̶l̶o̶,̶ ̶W̶o̶r̶l̶d̶!̶ back, struck through letter by letter and ready to paste into WhatsApp, Discord, an Instagram bio or an…
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Generate Zalgo Glitch Text with a Repeatable Seed
«Glitch me» at intensity 2 with seed 42 becomes G̺̀l̐̓i̬͆t̤̏c̲̎h̘̕ ḿ͂ë́̕, and it comes out exactly the same every time you repeat those settings.
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Convert BBCode to HTML
[quote]Read [b]carefully[/b].[/quote] becomes a block quote with the word carefully in bold, and a [list] becomes a bulleted HTML list.
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Count syllables in a word
Beautiful has 3 syllables: the eau in the middle counts as one vowel group. The estimate follows simple English spelling rules, drops a silent final e and…
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Render CSV as a plain-text table
Paste a three-row export of names, roles and cities and get a table where every column lines up, separated by vertical bars, with a dashed rule under the…
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Extract @mentions from text
Paste any text and get each @mention once, in the order it first appeared: a note that names @Ada, @Linus and @ADA gives @Ada and @Linus, and team@example.com…
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Convert text to title case AP style
«standing up to the man with a plan» becomes «Standing up to the Man With a Plan»: AP headline rules capitalize prepositions of four or more letters, such as…
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Estimate reading time from text and words per minute
Ten words read at 240 words per minute take 3 seconds, because the time is rounded up to the next whole second so no passage looks shorter than it is.
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Count unique words in text
“The cat sat on the mat. The cat was happy, and the mat was warm.” has 15 words but only 9 unique ones, with The leading at 4 uses.
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Pretty-print JSON text
Turn one cramped line of data into neatly indented text, so the 53-byte example comes back as 79 readable bytes, two spaces per level.
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Convert text to leetspeak
Turn text into 1337 speak and decide how much changes: at medium, 16 of the 31 eligible letters in the sample sentence become digits, while light touches every…
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Line length statistics
Get the four numbers that describe how wide your lines are: in a three-line sample, the shortest has 5 characters, the longest 22 and the median 10, alongside…
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Remove HTML comments
Clear draft notes and disabled fragments out of your HTML: a page with two comments comes back with both gone and a count of 2, while tags, indentation and line…
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Generate an acronym from a phrase
“The North Atlantic Treaty Organization” becomes NATO: the generator joins the uppercase initials in order and skips the articles a, an and the unless you turn…
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Count paragraphs in text
Paste three paragraphs separated by blank lines and get 3 paragraphs with 6, 4 and 5 words, 15 in total.
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Remove numbers from text
«Invoice 2026-Q3: room ٤٢, batch １２.» becomes «Invoice -Q: room , batch .» with 9 digits removed, because Arabic-Indic and fullwidth digits count too, while…
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Remove punctuation from text online
«Hello, world! Room #42 is ready.» comes back as «Hello world Room 42 is ready»: punctuation and symbols go, letters in any script and digits stay, and spaces…
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Average word length calculator
“Hello, world! Average word length is useful.” has 7 words and 35 letters, so the average is 5 characters per word.
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Count sentences in text
“Dr. Rivera arrived at 9 a.m. She reviewed version 3.14. Was it complete? Yes!” counts as 4 sentences: titles, times and decimal points don't end a sentence…
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Count specific character occurrences in text
In “Banana bread” the letter a appears 4 times. Pick any single character, from a comma to an emoji, and choose whether capital and small letters count as the…
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Find the longest word in text
Paste any text and get its longest word with the letter count: in the sample, constellation wins with 13 letters and both of its appearances come back, in…
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Find the most frequent letter in text
In Mississippi River the winner is i, with 5 of its 16 letters, and the tool also tells you that 7 different letters appear.
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Remove emoji from text
A line with a rocket, a flag, a coder with a skin tone and a keycap 1 loses exactly 4 emoji, one per visible symbol, while every letter, space and punctuation…
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Remove common stopwords from text online
«The quick brown fox jumps over the lazy dog and runs into the forest.» keeps 8 of its 14 words: quick brown fox jumps lazy dog runs forest.
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Strip URLs from text
«Visit https://example.com and also www.docs.example.org for help.» comes back as «Visit and also for help.», with 2 links removed and listed so you can check…
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Align text in fixed-width columns for monospace display
Rows like «Ada, Engineer, London» and «Grace Hopper, Admiral, New York» come back as tidy columns 12, 8 and 8 characters wide, padded with spaces so they line…
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Normalize text indentation levels
Lines indented by 2, 4 and 6 spaces are read as levels 1, 2 and 3 of a 2-space unit, and every line is rewritten to match that unit exactly.
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Levenshtein edit distance calculator for two strings
Turning «kitten» into «sitting» takes 3 edits: that is the Levenshtein distance, the smallest number of insertions, deletions and substitutions between two…
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Convert text to binary representation
«Hi» becomes 01001000 01101001: one group of eight zeros and ones for each byte, the pattern a computer actually stores.
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Convert text to hexadecimal
«Hello, hex!» becomes 48656c6c6f2c2068657821: 11 bytes, each shown as two hexadecimal digits. Paste hex back and the text returns, while odd lengths and invalid…
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Build a word frequency table
Paste «The cat sat on the mat. The cat ran.» and get 9 words, 6 different ones, ranked: «the» first with 3 uses, then «cat» with 2.
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English word pluralizer
Get the correct English plural of a noun and the rule behind it: child becomes children, city becomes cities and box becomes boxes.
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Tabs to spaces converter
A tab at the start of a line becomes 4 spaces, but a tab after one character becomes 3: each tab jumps to the next tab stop, so alignment survives and the file…
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Sørensen–Dice string similarity calculator
Score how alike two texts are by the character pairs they share: night and nacht have only ht in common and score 0.25, while identical strings score 1.
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Levenshtein Edit Distance Calculator for Two Strings
Count the fewest single-character edits that turn one string into another: kitten becomes sitting in 3 edits, two substitutions and one insertion.
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