HTML/CSS/JS Formatter
Beautify HTML, CSS and JavaScript with self-hosted Prettier.
Interactive controls load with JavaScript. Processing stays in your browser.
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How to use
- 选择语言（JS/CSS/HTML），粘贴源码后点击处理。
- 可调行宽、缩进；JS 可开关分号与单引号。
- 引擎为自托管 Prettier standalone + 官方插件，同源加载。
- 只要压缩体积请用「HTML/CSS/JS 压缩」。
FAQ
Does HTML/CSS/JS Formatter upload my data?
No. HTML/CSS/JS Formatter runs locally in your browser and does not upload content to www.518882.com or third-party APIs.
Do I need an account?
No. Open and use — no signup, login, or paywall. Open HTML/CSS/JS Formatter and use it — no signup, login, or paywall.
How is this different from upload-based tools?
Tools run locally in your browser; content is not sent to our servers for processing — suited to private text and drafts.
Are there limits?
Limited by device memory and the browser; very large inputs may slow the page. There is no account quota.