Case Converter

What the Case Converter does

This tool rewrites the capitalization of any text you give it. Drop in a heading, a paragraph, a variable name or a messy copy-paste, then pick the style you want. It is handy for writers cleaning up titles, students fixing an all-caps rant, and developers switching between naming conventions like camelCase and snake_case.

You get seven options:

• UPPERCASE and lowercase for the obvious flips
• Title Case to capitalize every word, good for headlines
• Sentence case to capitalize only the start of each sentence
• camelCase, snake_case and kebab-case for code, slugs and file names

How to use it

1. Type or paste your text into the Input box.
2. Tap one of the style buttons (UPPERCASE, lowercase, Title Case, Sentence case, camelCase, snake_case, kebab-case). The Output box fills in at once.
3. Switch buttons as many times as you like to compare results.
4. Press Copy to grab the output, or Clear to start over.

A small counter under the output shows the word and character totals as you work.

Why convert text here

It is instant. Because the conversion runs in your own browser, results appear the moment you click, with no upload step and no spinner. That same local setup keeps your text private: nothing is sent to a server, so it is fine for client copy, code, or anything you would rather not share.

It is also free with no account and no install, and it works the same on a phone, tablet or laptop.

A quick tip

Title Case and Sentence case treat your text differently, so try both when you are unsure. Title Case is built for headings, while Sentence case reads like normal prose. For developers, camelCase, snake_case and kebab-case strip out spaces and punctuation, turning “My File Name” into a clean token you can paste straight into code.