Headline Capitalization: Title Case or Sentence Case?

Choose the casing system before the profile

Every Tool Packer title profile converts “what leaders need to know: the path forward” to “What Leaders Need to Know: The Path Forward.” The same source in Sentence case becomes “What leaders need to know: the path forward.” Both are mechanically consistent; the correct choice depends on the publication’s design and house policy, not a universal definition of headline.

A title profile matters only after title case has been chosen. AP, APA, Chicago, MLA, and Tool Packer’s baseline differ on selected minor words and boundaries, but none represents every newsroom’s full headline desk. A publication may use sentence-style headlines while following a named guide elsewhere, or it may maintain special digital and print treatments.

Casing must not rewrite the claim

A capitalization pass should change letter case while preserving wording, whitespace, punctuation, numbers, and quoted content. It cannot verify a statistic, decide whether a statement is causal, identify missing attribution, detect defamation, correct a misleading implication, or confirm that the article supports the headline. Those are editorial and reporting tasks with higher stakes than case.

Keep a source-of-truth headline in the content system, compare changed-character highlighting, and review proper names and acronyms. If wording needs revision, make that a separate tracked edit so reviewers can distinguish a substantive change from capitalization. A custom term can preserve a known name but cannot prove that the name belongs in the story.

• Case edit: presentation.
• Copy edit: wording and grammar.
• Editorial review: evidence, fairness, attribution, risk, and audience.

Optimize for scanning without manufacturing certainty

Headlines are often read in cards, feeds, alerts, search results, browser tabs, social previews, and assistive technology. Put the distinguishing subject and action where readers can encounter them, remove words that add no meaning, and avoid capitalization that makes abbreviations or names harder to recognize. Preview the actual placements because visible length changes across devices and templates.

Do not use ALL CAPS as a general urgency signal, and do not treat title case as inherently more credible than sentence case. A concise headline can still be false, and a long headline can still be necessary. Measure reader behavior only after accuracy and context are protected; engagement is not evidence that the chosen capitalization rule was editorially sound.

• Front-load meaning, not hype.
• Preserve qualifying words that change the claim.
• Test display contexts and screen-reader text.

Record house style and review dates

A useful workflow names the case system, profile or house exceptions, approved acronyms, and whether colons or em dashes start a new segment. Tool Packer explanations can expose the mechanical reason for each word, while custom terms keep request-specific names stable. Record exceptions in a style sheet rather than correcting the same output ad hoc.

Tool Packer is independent and is not affiliated with or endorsed by the Associated Press, The New York Times, or another publisher represented by an interface label. Current newsroom standards and legal or editorial review take precedence. Revisit high-impact rules when a guide, product surface, or organization changes, and never present automated capitalization as publication approval.

• Name the governing standard.
• Track exceptions and dates.
• Require human review for consequential headlines.