Change Text Case

Free online case converter to change text to uppercase, lowercase, or title case. Ideal for writers, editors, and content creators.

Convert text to uppercase, lowercase, capitalize each word, or lowercase each word's first letter. Standardize headings, titles, sentences, and any text content instantly.

All processing happens locally in your browser. No signup, no uploads, and your text stays private.

Input Text

Output Text

Options

Convert all letters to uppercaseConvert all letters to lowercaseUppercase the first letter of each wordLowercase the first letter of each word

Actions

Frequently Asked Questions

How do I use this text case converter?: This tool converts text to uppercase, lowercase, or title case instantly. Paste or type your text into the input area, choose a conversion mode, and click Convert Case to see the transformed result.; Select 'Convert all letters to uppercase' or 'lowercase' for full text transformation, or use 'Uppercase the first letter of each word' or 'Lowercase the first letter of each word' for title-style formatting.; Note that this tool works only with plain text; it does not preserve rich text formatting, fonts, or document structure from word processors.
Is my text uploaded to a server or stored?: No, all case conversion happens entirely locally in your browser. Your text is never uploaded, transmitted, or stored on any external server.; The tool uses JavaScript running directly on your device to transform letter casing. You can convert sensitive documents, confidential notes, and private content with complete confidence.; This privacy-focused approach means your data never leaves your browser window during the entire conversion process.
What rules determine how letters are converted?: Only alphabetic letters A-Z and a-z are affected by the conversion. Numbers, symbols, punctuation, spaces, and line breaks remain completely unchanged in the output.; In 'all uppercase' or 'all lowercase' mode, every letter is transformed. In 'first letter of each word' modes, only the first character following a word boundary is changed.; Existing uppercase letters in non-target positions are preserved. For example, in 'Lowercase the first letter of each word' mode, other uppercase letters in the word stay as they are.
Are there any limits or edge cases to consider?: Empty input produces empty output. Very large text blocks are processed in the browser, which may cause minor delays on older devices but should handle typical documents and paragraphs efficiently.; The tool treats accented characters and non-ASCII letters based on standard JavaScript string behavior. Results for special Unicode characters may vary depending on the browser implementation.; Note that 'word' boundaries are determined by whitespace and punctuation; hyphenated words and contractions are treated as single words for first-letter conversion.
How is this tool different from other case converters?: This tool offers four distinct conversion modes—full uppercase, full lowercase, uppercase first letter, and lowercase first letter—with clear visual feedback and instant local processing.; Unlike many online tools, it requires no signup, runs entirely in the browser for privacy, supports both text pasting and .txt file uploads, and preserves all non-alphabetic characters unchanged.; It also provides one-click result copying and text file downloads, making it ideal for writers, editors, developers, and anyone needing consistent text formatting.