Is "Too" Capitalized in a Title?

Yes. "Too" is an adverb ("Too Many Tabs," "Me Too"), and every style guide capitalizes adverbs in a title. Do not confuse it with "to", which is a preposition and stays lowercase mid-title.

"Too" by Style Guide

Style guide	"Too" mid-title	Why
AP	Capitalize	Adverbs are major words
APA	Capitalize	Adverbs are major words
Chicago	Capitalize	Adverbs are major words
MLA	Capitalize	Adverbs are major words
AMA	Capitalize	Adverbs are major words
Bluebook	Capitalize	Adverbs are major words

Examples in Chicago Style

• Too Many Tabs Open
• Is Your Headline Too Long
• Me Too
• Too Good to Be True

"Too Good to Be True" shows both words in one title: "Too" is an adverb and capitalized, while "to" is the infinitive marker and stays lowercase.

For the short list of words that do stay lowercase, see the full list of words that stay lowercase.

"Too" in Sentence Case

APA reference lists, many news sites, and most UI text use sentence case instead of title case. There, only the first word and proper nouns get capitals, so "too" is lowercase unless it starts the title: "Too many tabs open." Pick one of the two styles for a whole set of headings rather than mixing them.

Quick Answers

Should "too" be capitalized in a title?

Yes. "Too" is an adverb, and every style guide capitalizes adverbs in title case.

Is "too" capitalized in APA?

Yes. APA capitalizes major words, including adverbs, regardless of length.