Case Converter

Free Online Case Converter — fix text capitalization in seconds

Headlines, product descriptions, emails, code, and file names all have their own capitalization rules. This Case Converter gives you a fast, reliable way to change the case of any text without wrestling with a word processor or IDE settings. Paste or type your content, hit a button, and get clean, predictable output in the format you need.

Under the hood, it’s a flexible text case converter: perfect for quick jobs like turning ALL CAPS into lowercase, polishing titles into Title Case, or switching developer-friendly formats such as camelCase, PascalCase, snake_case, kebab-case, and CONSTANT_CASE. No signup, no clutter—just a focused, free case converter that runs in your browser.

Convert text to the exact case you need

• UPPERCASE / lowercase — turn shouty text into calm lowercase, or normalize blocks of copy with a single click.
• Sentence case — tidy up pasted paragraphs so each sentence starts correctly, great for blog posts and long-form copy.
• Title Case — polish headlines, card titles, and UI labels with consistent capitalization.
• camelCase / PascalCase / snake_case / kebab-case / CONSTANT_CASE — ideal for developers renaming variables, functions, components, and file paths across projects.
• Alternating and Inverse — useful for undoing an accidental Caps Lock, or adding playful emphasis to social captions and informal copy.

Who uses this case converter (and why)

Different teams land here with slightly different goals, but the problem is always the same: inconsistent text. Writers and editors fix pasted content from drafts or CMS exports, content teams standardize headings before publishing, and developers normalize identifiers across repos. The tool splits mixed inputs on spaces, underscores, dashes, and even camelCase boundaries, then rebuilds clean output in the style you choose.

While you type, you’ll see live word, character, line, and sentence counts so you can stay within limits for meta descriptions, ad copy, social posts, or UI text. It’s a simple way to standardize case and keep an eye on length at the same time.

Privacy-friendly by design

This is a browser-based case converter: there are no uploads, no hidden calls, and no tracking pixels quietly shipping your copy off to a server. Everything happens in your browser tab. That makes it a safe choice for early drafts, internal names, code snippets, and private documentation.

How to use this Case Converter

1. Paste or type your text into the editor at the top.
2. Click the conversion you need: UPPERCASE, lowercase, Sentence case, Title Case, camelCase, PascalCase, snake_case, kebab-case, CONSTANT_CASE, alternating, or inverse.
3. Copy the converted text into your document, CMS, editor, or IDE. Use Clear if you want to start again with new input.

When each case style comes in handy

• UPPERCASE / lowercase: quick normalization for forms, CSV exports, emails, and spreadsheets.
• Sentence case: clean paragraphs for articles, release notes, and product descriptions.
• Title Case: headings, navigation items, feature cards, and landing page blocks.
• Developer formats: predictable names for variables, exports, components, and files across a team or codebase.

Helpful companion tools

Once your capitalization looks right, you might want to finish tidying the text. Clean up spacing or odd symbols with Text Cleaner, count content precisely with Word Counter, strip stray whitespace via Remove Spaces, or batch-edit phrases with Find & Replace. For clarity and reading level checks, try Readability Test Tool. Working with encoded data or links? Base64 Encoder & Decoder and URL Encoder/Decoder slot neatly into the same workflow.

This page keeps the mechanics out of your way: paste, convert, copy, done. If your team has a specific style guide, bookmark the case conversions you use most and bring every draft, snippet, and variable name in line in a few seconds.