Text Case Converter
Convert text to UPPERCASE, lowercase, Title Case, or Sentence case.
The Text Case Converter transforms any text to UPPERCASE, lowercase, Title Case, or Sentence case in one click. It is useful for fixing pasted headings, formatting code constants, normalizing imported data, or quickly changing the capitalization of any block of text. All conversion happens instantly in your browser.
How to use
- Select a conversion mode — UPPERCASE, lowercase, Title Case, or Sentence case.
- Paste or type your text into the input area.
- The converted text appears immediately in the output panel. Use the copy button to copy it.
Your converted text will appear hereWhen to use
Fixing copy-pasted headings
Text pasted from PDFs or other documents often arrives in ALL CAPS or inconsistent capitalization. Paste the heading and convert it to Title Case or Sentence case in one click.
Preparing code constants
Convert a plain English phrase to UPPERCASE to get the raw capital letters needed for SCREAMING_SNAKE_CASE constants, then manually add underscores in your editor.
Normalizing data before import
Spreadsheet exports from different systems often mix capitalization. Convert all values to lowercase before deduplication or database import to ensure consistent matching.
Examples
Frequently Asked Questions
What is title case?
Title case capitalizes the first letter of each major word. Articles, prepositions, and conjunctions are typically lowercase unless they start the title.
What is sentence case?
Sentence case capitalizes only the first word of each sentence and proper nouns. It matches normal prose capitalization.
Can I convert a large block of text?
Yes. Paste as much text as you like — the conversion happens instantly in your browser with no length limit.
Does it handle punctuation correctly?
Yes. Sentence case detects sentence boundaries using periods, exclamation marks, and question marks to apply correct capitalization.
What is the difference between title case and sentence case?
Title case capitalizes the first letter of most words — used in headings and titles. Sentence case capitalizes only the first word of each sentence — used in body text and captions.
What is a title case converter?
A title case converter transforms text so the first letter of each major word is capitalized. This tool is a title case converter — it also handles lowercase, UPPERCASE, and sentence case in one place.
What is a sentence case converter?
A sentence case converter capitalizes only the first word of each sentence and proper nouns, matching standard prose capitalization. Use it to fix text that arrives in ALL CAPS or Title Case when it should read as plain prose.
What is camelCase?
camelCase starts with a lowercase letter and capitalizes the first letter of each subsequent word — for example, quickBrownFox. This converter does not produce camelCase directly; use lowercase output and manually capitalize within words in your editor.
Which case is correct for blog post titles?
Both Title Case and Sentence case are widely used — the choice depends on your style guide. AP and Chicago style use Title Case for headlines. The Guardian, BBC, and many tech publishers prefer Sentence case. Pick one and apply it consistently.