Aa Text Tool

Case Converter — Free Online Tool

Convert text to UPPERCASE, lowercase, Title Case, camelCase, snake_case, kebab-case and PascalCase instantly.

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✅ 100% Free 🔒 Files Never Uploaded ⚡ Instant Results 🚫 No Signup

Why Use Compressfy?

Powerful features, completely free — no strings attached.

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8 Case Types

UPPER, lower, Title, Sentence, camel, snake, kebab, Pascal.

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Instant Conversion

Paste text and convert in one click.

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One-Click Copy

Copy the converted text to clipboard instantly.

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Free Forever

No account needed, always free.

How It Works

Three simple steps — no software, no waiting.

Upload File

Click the tool above or drag & drop your file directly.

Choose Settings

Adjust quality, size or options as needed.

Download

Get your result instantly. Nothing stored on our servers.

What Is a Case Converter?

A case converter changes the capitalization pattern of text. Different writing styles, programming conventions, and platforms require specific capitalization formats — UPPERCASE for headings, Title Case for article titles, camelCase for JavaScript variables, snake_case for Python variables, kebab-case for CSS class names and URL slugs.

Case Formats and Their Uses

UPPERCASE: Headings, acronyms, emphasis, SQL keywords
lowercase: Email addresses, URLs, hashtags, casual text
Title Case: Article headlines, book titles, heading elements
Sentence case: Standard written text, normal prose
camelCase: JavaScript, Java, Swift, C# variable and function names
snake_case: Python variables, Ruby, database column names, file names
kebab-case: CSS class names, HTML attributes, URL slugs, filenames
PascalCase: Class names in most OOP languages (JavaScript, C#, Java)

When to Use This Tool

Use the case converter when formatting large blocks of text that need a different case — for example, converting all-caps clipboard text from an old system to readable mixed case, or converting a list of variable names from camelCase to snake_case when switching programming languages. It saves time over manual editing, especially for long blocks of text.

Frequently Asked Questions

UPPERCASE, lowercase, Title Case, Sentence case, camelCase, snake_case, kebab-case, PascalCase.

Starts lowercase with each subsequent word capitalized — e.g. "helloWorld".

Underscores between words, lowercase — e.g. "hello_world". Common in Python.

Hyphens between words — e.g. "hello-world". Common in URLs and CSS.