Free Text Case Converter
Last reviewed: August 3, 2026
FlipMyCase is a free online text converter with 75 interactive tools and 3 reference guides, including case converters, text cleaners, encoders, generators, and formatters. Select a tool below to transform your text — no signup required.
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1. Paste your text into the input box above or type directly. The tool accepts any length of text.
2. See all formats at once. The converter instantly shows your text in uppercase, lowercase, Title Case, Sentence case, camelCase, PascalCase, snake_case, kebab-case, CONSTANT_CASE, dot.case, alternating case, inverse case, and URL slug format.
3. Click Copy on any output card to copy that format to your clipboard. Paste it wherever you need it.
Supported Text Case Formats
Converts all letters to capital letters.
Converts all letters to small letters.
Capitalizes the first letter of each major word.
Capitalizes the first letter of each sentence.
First word lowercase, subsequent words capitalized, no separators.
Every word capitalized, no separators.
All lowercase with underscores between words.
All lowercase with hyphens between words. Common in URLs.
All uppercase with underscores. Used for constants in code.
All lowercase with dots between words.
Alternates between lowercase and uppercase letters.
Starts with lowercase, alternates each letter (toggle style).
Random-looking alternating case like the SpongeBob meme.
Randomly chooses uppercase or lowercase for each letter.
Swaps uppercase to lowercase and vice versa.
URL-friendly format with hyphens, no special characters.
When to Use a Case Converter
Writing and blogging: Convert headings to Title Case for articles and landing pages, normalize inconsistent capitalization, or generate a URL-friendly slug from a draft title.
Software development: Convert identifiers between camelCase, snake_case, PascalCase, and CONSTANT_CASE when moving between JavaScript, Python, SQL, and other naming conventions.
Data cleanup: Normalize messy text from PDFs, spreadsheets, or email by converting to lowercase first, then applying the format you need.
SEO and URLs: Generate lowercase hyphenated slugs from page titles for clean, crawlable URLs that search engines prefer.
Social media: Use alternating case or inverse case for stylistic effect in posts and comments.
How does the text case converter work?
Paste any text, click a format button, and FlipMyCase converts it instantly in your browser. No account or installation needed.
The converter applies 16 deterministic JavaScript transformations in the page and shows every result together, so you can compare formats before copying one. Tool input is not intentionally sent to FlipMyCase or analytics. Very large text can take longer to render, depending on the device and browser.
What text case formats does FlipMyCase support?
FlipMyCase supports 16 outputs, including UPPERCASE, lowercase, Title Case, Sentence case, camelCase, PascalCase, snake_case, kebab-case, CONSTANT_CASE, dot.case, inverse case, alternating styles, and a URL slug.
UPPERCASE and lowercase are the most common for basic text normalization. Title Case follows common heading conventions. camelCase and PascalCase are widely used in JavaScript and TypeScript, snake_case is common in Python and SQL, and kebab-case is common in URLs and CSS class names. Alternating and random-looking styles are primarily useful for informal or decorative text.
Who uses a text case converter?
Developers, writers, students, and social media managers use text case converters to reformat copy quickly without manual editing.
Software developers use it to rename variables, database columns, and API fields when switching between languages with different naming conventions. Content writers use Title Case for headlines, document titles, and formal headings where capitalization conventions signal professionalism and readability. Students and social media users use alternating case and other stylistic formats for emphasis or humor in posts.
How does FlipMyCase handle sensitive text?
Case conversion runs in your browser. The case converter does not send pasted text to FlipMyCase servers or save it in browser storage.
Local processing reduces network exposure, but it cannot protect you from a compromised device, browser extension, shared clipboard, or screen capture. Do not paste passwords, private keys, active access tokens, or other secrets into any website. Use the Clear control when you are finished with ordinary private text.
Further Reading
Frequently Asked Questions About Text Case Converter
What is a text case converter?
A text case converter is a free online tool that instantly transforms your text between formats including UPPERCASE, lowercase, Title Case, Sentence case, camelCase, PascalCase, snake_case, and kebab-case. No software installation required.
How do I convert text to title case?
Paste your text into the converter, then click the Title Case button. The tool capitalizes the first letter of each major word and lowercases articles, conjunctions, and prepositions following standard title case rules.
What is the difference between camelCase and PascalCase?
camelCase starts with a lowercase letter and capitalizes each subsequent word (e.g., myVariableName). PascalCase capitalizes the first letter of every word including the first (e.g., MyVariableName). Developers use camelCase for variables and PascalCase for class names.
Is this text case converter free to use?
Yes. FlipMyCase is free and requires no account. The converter processes text in your browser and does not intentionally send tool input to FlipMyCase or analytics.
What is snake_case used for?
snake_case uses underscores between words with all letters in lowercase (e.g., my_variable_name). It is the standard naming convention in Python, Ruby, and SQL, and is commonly used for file names, database columns, and API parameters.
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