# Case Converter - Convert camelCase, snake_case & More Online

> Free online case and naming converter: get UPPERCASE, lowercase, Title Case, camelCase, PascalCase, snake_case, kebab-case and CONSTANT_CASE at once.

- URL: https://qilingtools.com/en/case-convert
- Category: Productivity (https://qilingtools.com/en/office)
- Tags: [Text](https://qilingtools.com/en/tags/text), [Productivity](https://qilingtools.com/en/tags/office)
- Last updated: 2026-10-22
- Price: Free, no sign-up
- Privacy: Runs locally in the browser; files are never uploaded

Convert text or an identifier into many formats at once: UPPERCASE, lowercase, Title Case, Sentence case, camelCase, PascalCase, snake_case, kebab-case, CONSTANT_CASE and toggle case. Handy for renaming variables, titles and code style.

## How to use

1. Type your text or identifier
2. Every format is listed below
3. Click Copy next to the one you need

## Features

- Ten case/naming formats at once
- Smart word splitting for camelCase, snake_case and spaces
- Works for code names and article titles
- Instant conversion, processed locally

## FAQ

### Can it turn camelCase into snake_case?

Yes. It splits the input into words by case, underscores and spaces, then rejoins in the target style, so styles interconvert.

### Is punctuation kept?

Naming formats rebuild word by word; to keep original punctuation, use UPPERCASE/lowercase/Title Case.

### Are my files or data uploaded?

No. Everything runs locally in your browser with no network upload, and is discarded when you close the page.

### Do I need to sign up or pay?

No. The site is completely free, needs no account and has no usage limits.

## Related tools

- [QiLing Mind](https://qilingtools.com/en/mindmap): QiLing Mind is a free online mind map editor: add nodes with Tab/Enter, drag to restructure, import and export XMind and Markdown, export PNG/SVG/PDF.
- [Password Generator](https://qilingtools.com/en/password): Free online random password generator: choose length, character sets and look-alike exclusions, generate several at once with a strength meter, all locally.
- [QR Code Generator](https://qilingtools.com/en/qrcode): Free QR code generator: URLs, Wi-Fi and contact cards, with a center logo, text below, dot styles, batch ZIP and Data Matrix / PDF417. Runs in your browser.
- [Word Counter](https://qilingtools.com/en/word-count): Free online word counter: live counts of characters with and without spaces, words, CJK characters, lines, paragraphs, sentences, bytes and reading time.
- [Lorem Ipsum Generator](https://qilingtools.com/en/lorem): Free online Lorem Ipsum generator: classic Latin placeholder text or Chinese filler by paragraph, sentence or word, with one-click copy for mockups.
- [Sort & Dedupe Text](https://qilingtools.com/en/text-sort): Free online text tool: sort lines alphabetically or by length, remove duplicate and empty lines, trim whitespace, optionally ignoring case. Runs locally.
- [Sign & Stamp PDF](https://qilingtools.com/en/pdf/sign): Sign PDF online for free: draw a signature or upload a signature or stamp image, remove its white background and drag it onto one, all or chosen pages.
- [Barcode Generator](https://qilingtools.com/en/barcode): Free online barcode generator: Code 128 with automatic code sets, EAN-13 with its check digit and Code 39. Adjust size, quiet zone and colours; SVG or PNG.