Case Converter Online: Change Text Case Instantly
Transform text capitalization dynamically between UPPERCASE, lowercase, Sentence case, Title Case, camelCase, and snake_case. All conversions run locally on your device with no server uploads.
Convert Toggles
What Is a Text Case Converter?
A **Case Converter** is an online formatting utility that adjusts the capitalization casing of paragraphs, titles, lists, or developer variable strings. Instead of manually retyping sentences that were accidentally written with Caps Lock on or formatting headings line-by-line, this tool applies character transformations instantly.
This tool processes your data locally in your browser, so no inputs need to be sent to our server. Text formatting is executed fully inside your browser session, preventing any data leaks, copy history tracking, or external server logs.
Key Features
- 6 Supported Transforms: Easily cycle text across UPPERCASE, lowercase, Sentence case, Title Case, camelCase, and snake_case.
- Developer Friendly: Quickly convert normal sentences into code-compliant variable syntax (camelCase and snake_case).
- Client-Side Processing: Text transforms run in browser memory with zero network delay or payload transmissions.
- Clean Formatting: Preserves your spacing and indent layouts while updating letter casing rules.
How To Use
- 1 Paste Text: Type or paste your copy into the input text area.
- 2 Select Case: Click your desired format button (e.g. UPPER CASE or Title Case) in the control panel.
- 3 Convert: The text updates immediately inline. Select another layout to change styles.
- 4 Copy Text: Click "Copy to Clipboard" or manual copy to retrieve your formatted output.
Supported and Unsupported Casing Formats
To help you format copy or code correctly, here is a breakdown of the cases supported by this converter:
- UPPERCASE: Converts all characters to capitals (e.g.,
CONVERTED TEXT EXAMPLE). Used for constants and SQL commands. - lowercase: Converts all characters to small letters (e.g.,
converted text example). - Sentence case: Capitalizes the first letter of each sentence and lowers everything else.
- Title Case: Capitalizes the first letter of each word (e.g.,
Converted Text Example), excluding common prepositions and conjunctions. - camelCase: Lowers the first word and capitalizes subsequent joined words (e.g.,
convertedTextExample). Used in JavaScript/Java. - snake_case: Joins words with underscores and converts to lowercase (e.g.,
converted_text_example). Used in Python and SQL databases.
Note on Unsupported Formats: Please note that PascalCase (capitalizing all joined words, e.g. ConvertedTextExample) and kebab-case (joining lowercase words with hyphens, e.g. converted-text-example) are **NOT** supported by this utility. You will need to make manual corrections for these specific formatting types.
Frequently Asked Questions
Our Title Case algorithm capitalizes the first letter of each word, but automatically bypasses common minor words (such as articles: "a", "an", "the", prepositions: "of", "to", "in", and conjunctions: "and", "but", "for") unless they start the text block, maintaining clean editorial formatting.
No. Since all operations run locally in browser memory rather than processing on a server, there are no artificial character or text size caps. Large files convert in milliseconds.
No. This tool processes your data locally in your browser, so no inputs need to be sent to our server. All conversions are performed directly inside your local web page sandbox.
Privacy Promise
This tool runs entirely inside your browser. Your files never leave your device.