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Title Case Converter

Convert headlines and titles to professional Title Case following APA, Chicago, and MLA editorial style conventions.

Valid Syntax

Quick Answer & Understanding Your Result

Source: The Chicago Manual of Style (CMOS)

A Title Case Converter formats headlines and titles by capitalizing principal words while keeping minor conjunctions, prepositions, and articles in lowercase.

Editorial Style Rules Applied

  • Capitalized Major Words: Nouns, pronouns, verbs, adjectives, and adverbs always capitalize their initial letter.
  • Lowercased Minor Stop Words: Short articles (a, an, the), coordinating conjunctions (and, but, for, or, nor), and short prepositions (in, on, at, to, by) remain lowercase unless at the start or end.
  • First & Last Word Invariant: The very first and very last word of any title are always capitalized, regardless of part of speech.

Publishing & Design Use Cases

  • Journalism & Blogging: Formatting Medium, WordPress, and Substack article titles.
  • Academic Writing: Complying with APA 7th Edition, MLA 9th, and Chicago Manual of Style.

Type or paste your headline above to format into professional Title Case instantly.

Formula & Calculation Logic

Mathematical Formula
Mathematical Formula
Title Case
= capitalizeWords(text, excludeStopWords: true, keepAcronyms: true )

Grammatical capitalization logic:

  • Segments string into word tokens.
  • Checks token against standard editorial stop-word dictionary: {a, an, the, and, but, or, for, nor, on, at, to, by, in, of}.
  • Capitalizes first letter of non-stop words and initial/terminal words.

Step-by-Step Guide

1

Enter Raw Headline

Paste or type your unformatted title into the editor.

2

Automatic Smart Capitalization

The engine formats major words and lowercases grammatical stop words.

3

1-Click Copy Formatted Title

Click Copy to transfer the headline into your CMS or document.

Worked Examples Table

ExampleInput ValuesCalculated ResultExplanation
Standard Article Title
Text: the quick brown fox jumps over the lazy dog
The Quick Brown Fox Jumps over the Lazy Dog
Capitalizes major words while keeping 'over' and 'the' lowercase where appropriate.
Technical Blog Post
Text: building a modern web app with next.js and typescript
Building a Modern Web App with Next.js and TypeScript
Preserves technical casing (Next.js, TypeScript) and formats title.

Frequently Asked Questions

Evidence-Based Methodology & Authoritative References

References & Methodology

The Chicago Manual of Style (CMOS)

View Reference

APA Style - Title Case Capitalization Guidelines

View Reference
Calculation Standard & Formulation

Standard: ISO / W3C / IETF Authoritative Domain Standard

Formula: Title Case = capitalizeWords(text, excludeStopWords: true, keepAcronyms: true )

Last Reviewed: August 21, 2026

Authoritative Sources & Peer Review

Primary Source: The Chicago Manual of Style (CMOS)

Reference Document: APA Style - Title Case Capitalization Guidelines

Computation Privacy: 100% client-side 0ms computation, zero data retention

Text Processing Standards & Privacy

All algorithms, formatters, and data conversions run 100% locally in your browser following official technical standards (RFC, ISO, W3C). Output should be verified prior to mission-critical production deployment.

TOPIC CLUSTER & KNOWLEDGE MESH

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Calculated results are modeled based on standard scientific and mathematical formulas. Please verify with domain-specific technical documentation for specialized applications.

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