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我最近需要在户外频繁记录时间戳，所以我写了一个大约30行的HTML表单，里面只有一个输入框和三个按钮（时间戳/换行/清除），可以让我快速记录信息。结果发现，将其制作成离线的渐进式Web应用（PWA）只需添加一个清单文件和一个用于缓存请求的sw.js，再加上两行localStorage代码以实现数据持久化，因此现在我手机上有了一个可靠的应用，它是木匠自制的丑陋但实用的工具的数字化等价物。手动编写一个简单的HTML应用竟然如此简单，这让我对Web技术的易用性有了新的认识，只要不把它复杂化，就像用乐高积木造一辆车一样。你有哪些为个人使用量身定制的黑科技小工具，利用了最基本的Web技术？

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I recently needed to frequently log timestamps on my phone while outside, so I wrote a ~30 line HTML form that is just an input box and three buttons (Timestamp/Newline/Clear) that lets me quickly log a message.Turns out that making it into an offline PWA is just a matter of adding a manifest and a sw.js for cache requests, and two lines of localStorage for persistence, so now I have a trusty app on my phone that’s the digital equivalent of a carpenter’s self-crafted ugly-but-works shop tool.It felt good that hand-rolling a barebones HTML app is actually so easy, giving me a new appreciation for the ease of use of the webstack if you don’t overcomplicate it into a car made from Legos.What are some of your tailored-for-personal-use hacky toolets that leverages a minimal use of vanilla webstack?

问HN：有没有针对个人使用的一次性HTML工具？