Text Tools & Utilities

Available Text Operations

Counting Tools

• Word Count: Count total words in your text
• Character Count: Count characters with and without spaces

Case Conversion

• UPPERCASE: Convert all text to capital letters
• lowercase: Convert all text to small letters
• Title Case: Capitalize Each Word
• Sentence case: Capitalize first letter of each sentence

Text Manipulation

• Reverse Text: Reverse the entire text string
• Remove Duplicates: Remove duplicate lines
• Sort Lines: Sort all lines alphabetically
• Remove Empty Lines: Clean up blank lines
• Trim Lines: Remove whitespace from line edges
• Number Lines: Add line numbers

Generators

• Dummy Text: Generate filler text for designs

Counting Text Is Less Obvious Than It Looks

Every field with a limit — a meta description, a tweet, an SMS, a database column — counts something slightly different, and the differences are large enough to break things.

Characters Are Not Code Points Are Not Bytes

Take a single emoji with a skin-tone modifier. A person sees one character. JavaScript's .length reports several, because it counts UTF-16 code units. UTF-8 encoding produces more bytes again.

Text	Perceived	JS .length	UTF-8 bytes
hello	5	5	5
café	4	4	5
日本語	3	3	9
👋	1	2	4
👩‍💻	1	5	11

A VARCHAR(255) that counts bytes holds 255 ASCII characters or 63 emoji. A form validating with .length rejects text a byte-counting backend would accept, and vice versa. Decide which unit your limit is in before writing the validation.

Words Depend on a Definition

"Splitting on whitespace" is a definition, not the definition. Hyphenated compounds, contractions, numbers with separators and em-dashes without spaces all sit on judgement calls, and languages without spaces between words — Chinese, Japanese, Thai — defeat the approach entirely.

For English prose the whitespace rule is close enough that the disagreement between tools is usually 1–2%. For anything where the count is contractual — a word-limited essay, a paid translation — confirm which definition is being applied before you rely on it.

Reading Time Is a Word Count in Disguise

The usual figures come from reading-speed research and are averages with enormous variance:

Content	Words per minute
Technical documentation	150–200
General non-fiction	200–250
Light web content	250–300

Dividing by 225 is the common convention. Treat the output as a rough courtesy to the reader rather than a measurement — code blocks, tables and images all break the model completely.

Length Limits Worth Knowing

Field	Limit	Counts
Title tag	~60 characters displayed	Pixels, not characters
Meta description	~155–160 displayed	Pixels, not characters
SMS (GSM-7)	160 per segment	Characters, 70 if any Unicode
Twitter/X	280	Weighted code points
Open Graph title	~60–90	Characters

The two SEO fields are the ones people get wrong most often, because Google truncates on rendered width, not character count. A title of sixty i characters fits comfortably; a title of sixty W characters does not.

Which Tool to Use

• [Word counter](/dev/text-tools/word-counter) for drafting to a target length.
• [Character counter](/dev/text-tools/character-counter) for fields with a hard cap,

where the unit matters.

Everything Happens in Your Browser

The text is counted locally in JavaScript. Nothing is uploaded, nothing is logged, and the tools work offline once the page has loaded — which matters more than it sounds for the obvious use case of pasting in something confidential to check its length.