Which Title Case style guide rules are applied (AP, Chicago, APA)?

ToolJiffy's Title Case mode follows AP Stylebook and Chicago Manual of Style conventions — the most widely used standard for journalism, publishing, and web content. Words of 4+ letters are always capitalized; short function words are lowercased unless first or last.

Text Capitalizer

Q: What capitalization modes does the Text Capitalizer support?

Supports Sentence case (capitalize first letter of each sentence), Title Case (capitalize significant words per AP/Chicago style rules), Capitalize Each Word (capitalize every word's first letter), UPPER CASE, lower case, and alternating/toggle case.

Q: How does Title Case differ from Capitalize Each Word mode?

Title Case follows editorial style guide rules — short prepositions (in, on, at, by), coordinating conjunctions (and, but, or), and articles (a, an, the) are not capitalized unless they are the first or last word. Capitalize Each Word capitalizes every word without exception.

Q: Can I capitalize text in multiple paragraphs simultaneously?

Yes. Paste any amount of text — multiple paragraphs, headings, and mixed content — and all capitalization transformations apply to the entire text block simultaneously.

Q: How does Sentence case capitalization work?

Sentence case capitalizes the first letter of each sentence (after a period, exclamation mark, or question mark) while lowercasing all other letters — producing natural prose capitalization matching standard writing conventions.

Free online text capitalizer — fixing lowercase names, headings and lists.

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Fix text capitalization — correct lowercase names, headings, and lists

Incorrect capitalization is one of the most common and visible text errors — names in all lowercase, headings without proper title case, lists with inconsistent capitalization, or entire paragraphs that were accidentally typed in CAPS LOCK. Manually correcting capitalization across large amounts of text is tedious and error-prone. ToolJiffy Text Capitalizer applies any capitalization style to any amount of text in one click, entirely in your browser.

Six capitalization modes for every use case

Sentence case: Capitalizes the first letter of each sentence, lowercases everything else. The default capitalization for prose paragraphs, emails, and casual writing. Example: "the quick brown fox." → "The quick brown fox."
Title Case (AP/Chicago style): Capitalizes significant words while lowercasing short function words (prepositions, conjunctions, articles). The correct format for article headings, book titles, and web page titles. Example: "the art of war" → "The Art of War"
Capitalize Each Word: Capitalizes every word's first letter without exception. Example: "the quick brown fox" → "The Quick Brown Fox"
UPPER CASE: Converts all characters to uppercase. Example: "Hello World" → "HELLO WORLD"
lower case: Converts all characters to lowercase. Example: "Hello World" → "hello world"
aLtErNaTiNg CaSe: Alternates between lowercase and uppercase per character — for comedic "mocking" style posts

Title Case style guide rules

AP Stylebook and Chicago Manual of Style Title Case rules capitalize:

All "major" words — nouns, verbs, adjectives, adverbs, pronouns
All words of 4 or more letters regardless of part of speech
The first word and last word of the title regardless of part of speech

And do not capitalize (unless first or last):

Short prepositions: at, by, for, in, of, on, to, up, via
Coordinating conjunctions: and, but, or, nor, so, yet, for
Articles: a, an, the

Browser-native JavaScript string transformation engine

ToolJiffy applies capitalization transformations using JavaScript's str.toUpperCase(), str.toLowerCase(), and a custom Title Case tokenizer that splits text into words, looks up each word against a function-word exclusion list, and applies conditional capitalization based on word position and part-of-speech classification. All transformations run synchronously in browser memory with real-time preview.

Step-by-step guide to capitalizing text

Paste your text: Enter the text with incorrect or inconsistent capitalization into the editor above.
Select capitalization mode: Choose Sentence case, Title Case, Capitalize Each Word, UPPER, lower, or alternating.
Copy the result: Click Convert and copy the correctly capitalized text.

Frequently asked questions

What capitalization modes does the Text Capitalizer support?

Supports Sentence case, Title Case (AP/Chicago style), Capitalize Each Word, UPPER CASE, lower case, and alternating/toggle case.

How does Title Case differ from Capitalize Each Word mode?

Title Case follows style guide rules — short prepositions, conjunctions, and articles are not capitalized unless first or last. Capitalize Each Word capitalizes every word without exception.

Is my text data uploaded to any cloud server?

No. All capitalization transformations run 100% locally in your browser. Your text never leaves your device.

Which Title Case style guide rules are applied?

ToolJiffy follows AP Stylebook and Chicago Manual of Style conventions — the most widely used standard for journalism and web content.

Can I capitalize text in multiple paragraphs simultaneously?

Yes. Paste any amount of text and all transformations apply to the entire text block simultaneously.

How does Sentence case capitalization work?

Sentence case capitalizes the first letter after each sentence-ending punctuation mark while lowercasing all other letters.

Can I convert ALL CAPS text to normal sentence case?

Yes. Paste ALL CAPS text and select Sentence Case to convert to properly capitalized prose.

Is ToolJiffy Text Capitalizer free without limits?

Yes. ToolJiffy is 100% free with unlimited text conversion, zero account registration, and zero server uploads.

Related text conversion tools

Convert to uppercase with Uppercase Converter, convert to title case with Title Case Converter, convert to lowercase with Lowercase Converter, or generate fancy text with Fancy Text Generator.