Sentence Case
Use the Sentence Case tool to convert your text by capitalizing or lowercasing the first letter of each sentence for clear readability and consistent formatting.
Input Text
Paste your text to convert to sentence case
Key Features
Converted Text
Your text in sentence case — Capitalize Sentences
Why Use Sentence Case Tool?
The Sentence Case tool helps you quickly format text so each sentence begins with the correct letter style. Whether you need to apply sentence case for professional documents, blog posts, or marketing materials, this free online converter ensures your content remains clean, readable, and consistent across platforms.
Benefits of Using Sentence Case
When you convert text to sentence case, you enhance readability, align with editorial standards, and present content that looks polished. Sentence case makes long paragraphs easier to scan and understand, especially on mobile devices and dense documentation.
Editorial Consistency and Style
Many content guidelines recommend sentence case for UI text, documentation, and emails. Our tool standardizes capitalization while respecting punctuation and sentence boundaries, improving overall cohesion of your writing and helping teams maintain a unified voice.
Better Accessibility and UX
Content presented in sentence case is more accessible to a broad audience. Readers can process information faster, which reduces cognitive load and improves comprehension—key for user interfaces, support articles, and onboarding content.
How to Use the Sentence Case Tool
Paste your text, select whether to capitalize or lowercase the first letter of each sentence, then click convert. The sentence case converter handles periods, exclamation points, and question marks, creating neatly formatted output without altering the rest of your text.
Advanced Options
Toggle between capitalizing and lowercasing sentence starts. The tool also preserves whitespace and line breaks, which is helpful when working with pasted content from emails, PDFs, or chat logs that need sentence case cleanup.
Use Cases
Apply sentence case to UI text, release notes, product descriptions, academic abstracts, and long-form articles to maintain professional tone and increase clarity. Editors and translators can also use it to normalize content imported from various sources before publication.
Performance and Privacy
The sentence case converter runs entirely in your browser—no data is uploaded. Conversions are instant, secure, and compatible with all modern devices and browsers.