隐私政策

一句话版本：你输入的文字不会离开你的设备。下面是完整说明。

1. 我们不收集什么

不收集姓名、邮箱、账号或手机号；不需要注册登录；不收集你输入的任何文字。

本站没有服务端处理逻辑，所有文字转换都在你的浏览器内完成。

2. 本机存储了什么

只有两项，都存放在浏览器的 localStorage 里，键名以 ffn: 开头：主题偏好（暗色/亮色）与昵称投票记录。

清空浏览器中本站的站点数据即可全部删除；不清理也不会影响任何功能。

3. 没有 Cookie、没有统计、没有广告

本站不写入 Cookie，不接入第三方统计、广告或用户画像脚本。

4. 网络请求

页面加载时只请求本站自己的文件：HTML、CSS、JS、SVG 图标与图片。

「复制」走浏览器自带的剪贴板接口；「导出 PNG」在本地 canvas 上绘制后直接下载。两者都不经过网络。

5. 托管与访问日志

站点部署在静态托管服务上，托管方可能按行业惯例记录访问日志（IP、时间、User-Agent），用于运维与防滥用。这类日志不由本站控制，也不用于识别个人身份。

6. 儿童与政策更新

本站不面向儿童设计，也不会主动收集儿童的信息。

本政策如有更新会直接修改本页内容，请以本页最新版本为准。

Privacy Policy

The one-line version: nothing you type ever leaves your device. The full explanation follows.

1. What we do not collect

No name, email, account or phone number; no registration or login; and none of the text you type.

There is no server-side processing here. Every conversion happens inside your browser.

2. What is stored on your device

Exactly two things, both in browser localStorage under keys starting with ffn:: your theme preference (dark/light) and your nickname voting record.

Clearing this site’s data in your browser removes both. Leaving them in place affects nothing.

3. No cookies, no analytics, no ads

This site sets no cookies and loads no third-party analytics, advertising or profiling scripts.

4. Network requests

Loading a page requests only this site’s own files: HTML, CSS, JS, SVG icons and images.

Copy uses the browser’s built-in clipboard interface; Export PNG draws on a local canvas and downloads the result. Neither touches the network.

5. Hosting and access logs

The site is served by static hosting. The provider may keep standard access logs (IP, timestamp, User-Agent) for operations and abuse prevention. Those logs are outside our control and are not used to identify individuals.

6. Children and updates

This site is not designed for children and does not knowingly collect information from them.

If this policy changes, this page will be updated directly; the current version is always the one shown here.