Free Online Text Case Converter

Understanding Each Case Converter

Wondering which text case to choose? Here’s a simple explanation of each case style available on TextCase.io, so you can easily pick the right one for your needs.

Sentence Case

Sentence case converts your text so that the first letter of the first word is capitalized, and the rest is in lowercase, like a regular sentence. It’s perfect for writing normal sentences, titles, and paragraphs that follow standard grammar rules. If you have messy text with random capitalization, Sentence Case will fix it. This format is commonly used in articles, blogs, and emails. It helps ensure that your text looks clean, professional, and easy to read. However, it does not automatically capitalize proper nouns, such as names or places.

Upper Case

Upper case transforms all letters in your text into capital letters. It is often used to emphasize a message, for example in titles, headlines, warnings, or announcements. Upper case can make text stand out but should be used sparingly to avoid overwhelming readers. This format is great for headings or to grab attention in marketing materials. Just paste your text, convert it to upper case, and you're ready to go!

Lower Case

Lower case converts all letters to small (lowercase) letters. This is useful when you want to remove unnecessary capitalization or create casual text. It’s often used in coding, usernames, email addresses, and when following specific formatting guidelines. Lower case ensures consistency and simplicity, especially for data entry or online forms. It can also help when preparing content for systems that require lowercase input.

Capitalized Case

Capitalized case makes the first letter of each word uppercase while leaving the rest of the letters lowercase. This style is commonly used for titles, headlines, and proper names. It helps give text a neat and formal appearance. Capitalized case is also great for labeling items, headings, or formatting names and places properly. If you want each word to stand out, this is the right choice.

Alternating Case

Alternating case switches between lowercase and uppercase letters for each character in the text. For example, "tHiS Is aLtErNaTiNg cAsE". This playful and creative style is often used for fun, memes, or to convey sarcasm or irony online. It’s not meant for formal writing but can add humor or emphasize a message. If you want to give your text a quirky personality, alternating case is perfect.

Toggle Case

Toggle case flips the capitalization of each letter in the text — uppercase letters become lowercase, and lowercase letters become uppercase. It's useful if you accidentally typed something with the wrong case and want to reverse it quickly. Toggle case can also be used for stylistic effects or to highlight specific content. It's a handy tool for fixing formatting mistakes without retyping the whole text.

Camel Case

Camel case writes phrases without spaces, capitalizing each word except the first one — like "thisIsCamelCase". It’s widely used in programming for naming variables and functions. Camel case improves readability of multi-word identifiers without using spaces or underscores. This style is especially popular in languages like JavaScript, Java, and C#. If you're a developer, camel case will be a familiar and useful format.

COBOL Case

COBOL case converts all letters to uppercase and separates words with hyphens, like "THIS-IS-COBOL-CASE". This format is inspired by the COBOL programming language, where such capitalization and separation are common. It’s mainly used in legacy systems and older codebases that follow COBOL conventions. If you need to format text for COBOL or similar environments, this case makes it easy.

Dot Case

Dot case connects words using dots and makes all letters lowercase, like "this.is.dot.case". It’s a clean and modern way to format text, often used in URLs, file names, and technical documentation. Dot case avoids spaces and keeps text compact and easy to read. It’s especially helpful when you need to create identifiers that won’t break in code or on the web.

Kebab Case

Kebab case joins words with hyphens and makes them lowercase, like "this-is-kebab-case". It’s popular in URLs, file names, and coding, especially for naming CSS classes and web development assets. Kebab case is easy to read and works well when spaces are not allowed. It’s a great choice for keeping multi-word identifiers clean and SEO-friendly.

Snake Case

Snake case separates words with underscores and makes them lowercase, like "this_is_snake_case". It’s widely used in programming languages like Python, Ruby, and others for variable and function names. Snake case improves readability and prevents issues with spaces in code. If you’re writing code or need consistent naming, snake case is a reliable choice.

Pascal Case

Pascal case capitalizes the first letter of every word and removes spaces, like "ThisIsPascalCase". It’s similar to camel case but starts with a capital letter. Pascal case is often used for naming classes, constructors, and modules in programming. It makes compound words easy to read and is a common naming convention in C#, .NET, and other object-oriented languages.

Constant Case

Constant case converts all letters to uppercase and separates words with underscores, like "THIS_IS_CONSTANT_CASE". It’s typically used for naming constants and global variables in code. Constant case helps indicate that a value should not be changed, making code easier to understand and maintain. If you need to format constant identifiers, this is the right case to use.

Hashtag Case

Hashtag case is a style where all words are lowercased, and separated by # sign. It is commonly used on social media platforms like Twitter, Instagram, and Facebook to make content more discoverable and searchable. For example, "Hello World" would become "#hello #world" in hashtag case. Hashtags are often used to categorize content, join conversations, or express emotions.