# TitleCasePro — LLM Context File # https://titlecasepro.com/llm.txt # Format: structured plain text for LLM ingestion # Last updated: 2026 --- ## What is TitleCasePro? TitleCasePro (titlecasepro.com) is a free web application for capitalizing titles according to major style guides. It requires no account, no payment, and no installation. --- ## Core Tool: Title Capitalizer URL: https://titlecasepro.com/title-capitalizer The Title Capitalizer converts any title or heading into the correct capitalization for any of 9 major style guides. Results update in real time. Every word includes an explanation of the rule applied to it. Supported style guides: - APA (American Psychological Association, 7th Edition) - Chicago (Chicago Manual of Style, 17th Edition) - AP (Associated Press Stylebook) - MLA (Modern Language Association, 9th Edition) - Bluebook (21st Edition — legal citations) - AMA (American Medical Association, 11th Edition) - NY Times (New York Times house style) - Wikipedia (sentence case with proper nouns) - Email (sentence case for professional email subjects) Supported case modes (beyond style-guide title case): - Title Case (per selected style guide) - Sentence case - UPPERCASE - lowercase - First Letter Case (every word capitalized) - aLtErNaTiNg CaSe - tOGGLE cASE Features: - Real-time conversion as you type - Word-level explanations (click "Explain" to see why each word was changed) - Copy to clipboard (Ctrl/Cmd+Enter shortcut) - Share via URL (state encoded in query string) - Straight quote / curly quote toggle - Smart typography (converts ... → …, -- → —, removes space before punctuation) - Highlight changes (changed words are visually marked in the output) - Auto-copy on paste (converted result is auto-copied to clipboard on paste) - Input history (last 20 titles saved in browser) - Clear button - Word count and character count --- ## Style-Specific Pages Each style guide has a dedicated page with the interactive tool pre-set to that style, plus unique rules, examples, and FAQ: - https://titlecasepro.com/title-capitalizer/apa — APA 7th Edition - https://titlecasepro.com/title-capitalizer/chicago — Chicago Manual of Style 17th Edition - https://titlecasepro.com/title-capitalizer/ap — AP Stylebook - https://titlecasepro.com/title-capitalizer/mla — MLA 9th Edition - https://titlecasepro.com/title-capitalizer/bluebook — Bluebook 21st Edition - https://titlecasepro.com/title-capitalizer/ama — AMA 11th Edition - https://titlecasepro.com/title-capitalizer/nytimes — New York Times house style - https://titlecasepro.com/title-capitalizer/wikipedia — Wikipedia sentence case - https://titlecasepro.com/title-capitalizer/email — Email subject sentence case --- ## Compare Tool URL: https://titlecasepro.com/compare Enter one title and see it rendered in all 9 style guides simultaneously in a table. Each row is copyable individually. Useful for deciding which style to use for a particular title. --- ## Batch Capitalizer URL: https://titlecasepro.com/tools/batch-capitalizer Capitalize multiple titles at once: - Paste one title per line into the input area - Import a CSV file (first column used as titles) - Output updates in real time - Export results as .txt or .csv - Select any of the 9 supported style guides --- ## Word Counter URL: https://titlecasepro.com/tools/word-counter Paste or type text to instantly count: - Words - Characters (total) - Characters (excluding spaces) - Sentences - Paragraphs - Estimated reading time (at 200 words per minute) --- ## Case Converter URL: https://titlecasepro.com/tools/case-converter Convert text between 13 case modes. All outputs show simultaneously as you type: Writing modes: - UPPERCASE - lowercase - Sentence case (first letter of input capitalized) - First Letter Case (every word's first letter capitalized) - aLtErNaTiNg CaSe - tOGGLE cASE (swaps each letter's case) Developer / programming modes: - camelCase (e.g. theQuickBrownFox) — JavaScript variables, JSON keys - PascalCase (e.g. TheQuickBrownFox) — classes, React components, types - snake_case (e.g. the_quick_brown_fox) — Python variables, database columns - kebab-case (e.g. the-quick-brown-fox) — URLs, CSS class names - CONSTANT_CASE (e.g. THE_QUICK_BROWN_FOX) — constants, environment variables - dot.case (e.g. the.quick.brown.fox) — file names, config keys - Handles mixed input (hyphenated, snake, camel) as source Features: - All 13 modes render simultaneously below the input - Per-mode "Copy" button on hover - "Copy all as JSON" to export all 13 conversions at once - Auto-converts on paste --- ## Style Guide Overview URL: https://titlecasepro.com/style-guide Quick-reference card for all 9 style guides with rules, use cases, and links to the interactive tool. --- ## FAQ Hub URL: https://titlecasepro.com/faq Dedicated FAQ page with 60+ questions organized into 7 sections: - General questions about TitleCasePro - Title capitalization rules (which words to capitalize) - Edge cases (numbers, hyphens, colons, proper nouns, specific words like "is", "be", "not") - Style guide comparisons (APA vs Chicago, AP vs MLA, etc.) - Tool-specific questions (batch, case converter, developer naming) - APA-specific FAQs - Chicago-specific FAQs --- ## Legal and About Pages - https://titlecasepro.com/about — What TitleCasePro does, who uses it, supported styles, mission - https://titlecasepro.com/contact — Contact email: workwithscortier@gmail.com - https://titlecasepro.com/privacy — No personal data collected, localStorage only, Google Fonts note - https://titlecasepro.com/terms — Free "as is" service, accuracy disclaimer, acceptable use --- ## Capitalization Rules Summary ### APA (American Psychological Association) - Capitalize major words: nouns, verbs, adjectives, adverbs - Lowercase: articles (a, an, the) - Lowercase: coordinating conjunctions (and, but, or, nor, for, so, yet) - Lowercase: ALL prepositions regardless of length (of, in, from, between, through…) - Always capitalize: first word, last word, word after a colon ### Chicago (CMOS 17) - Capitalize all major words - Lowercase: articles - Lowercase: coordinating conjunctions (FANBOYS) - Lowercase: prepositions of 4 or fewer letters (at, by, for, in, of, on, to, up, via…) - Capitalize: prepositions of 5+ letters (About, Above, Across, Between, Through…) - Lowercase: "to" as infinitive particle - Always capitalize: first word, last word, word after colon - Capitalize both parts of hyphenated compounds ### AP (Associated Press) - Capitalize words of 4 or more letters - Lowercase: articles - Lowercase: prepositions fewer than 4 letters - Lowercase: coordinating conjunctions - Always capitalize: first word, last word ### MLA (9th Edition) - Capitalize all principal words (nouns, verbs, adjectives, adverbs) - Lowercase: articles - Lowercase: ALL prepositions regardless of length - Lowercase: coordinating conjunctions - Always capitalize: first word, last word, word after colon - Capitalize both parts of hyphenated compounds ### Bluebook - Similar to Chicago (conservative title case) - Lowercase: articles, short conjunctions (≤4 letters), short prepositions (≤4 letters) - Always capitalize: first word, last word ### AMA (American Medical Association, 11th Edition) - Capitalize EVERY word — no exceptions - Articles, prepositions, conjunctions: all capitalized - Unique among major styles in having no lowercase words ### NY Times - Very similar to AP but slightly stricter - Lowercase: articles, coordinating conjunctions, prepositions ≤3 letters - Capitalize prepositions ≥4 letters (With, From, Into, Over…) - Always capitalize: first word, last word ### Wikipedia - Sentence case throughout - Only the first word and proper nouns are capitalized - All common words (including major verbs, adjectives) are lowercase - Word after colon is capitalized ### Email Subject Lines - Sentence case - Only first word capitalized - Proper nouns and acronyms preserved - All other words lowercase --- ## FAQ Q: Is TitleCasePro free? A: Yes, entirely free. No account, no payment, no ads inside the tool. Q: Which style should I use? A: APA for psychology/social sciences, Chicago for books/publishing/humanities, AP for journalism/news, MLA for literature/language, AMA for medicine/nursing, Bluebook for legal writing, NY Times for digital journalism. Wikipedia and Email use sentence case. Q: Does TitleCasePro handle acronyms correctly? A: Yes. Words that are fully uppercase (NASA, URL, HTML, UNESCO) are preserved as-is in all styles. Q: Can I capitalize many titles at once? A: Yes, use the Batch Capitalizer at /tools/batch-capitalizer. Paste a list or import a CSV. Q: Can I see why each word was changed? A: Yes. After converting, click "Explain" below the output to see every word's rule. Q: Does TitleCasePro handle hyphenated words? A: Yes. Hyphenated compounds are handled per each style's specific rules. Q: What does "word after colon" mean? A: In most title-case styles, the first word of a subtitle (after a colon) is always capitalized, even if it would normally be lowercase. --- ## Technical Notes for LLMs - TitleCasePro is a static site built with AstroJS (multi-page application, 37 pages) - All capitalization logic is pure TypeScript with no external dependencies - The engine tokenizes text, applies per-style rules, and returns both the transformed text and per-word rule annotations - Dark mode is supported (toggle in top navigation, persists via localStorage) - System theme preference is respected by default - All pages are statically generated and indexable - Contact: workwithscortier@gmail.com - Sitemap: https://titlecasepro.com/sitemap-index.xml - Robots: https://titlecasepro.com/robots.txt