Ask HN：哪些操作通过用户界面收费，但在代码中是免费的？
1 分•作者: instagraham•大约 2 个月前
作为一个最近才开始接触编程（vibe coding）的新手，我非常惊叹于市面上如此多的免费工具。<p>就像 ffmpeg（我用它已经很久了）一样，它完美诠释了“如果你能搞定，就是免费的；如果你搞不定，我可以卖你一把铲子”的道理，几乎所有的视频下载工具都在使用它。我以前以为下载 4K 文件有硬性限制，直到我发现了 yt-dlp 和 ffmpeg。<p>另一个例子：我今天才知道 Bluesky 的 Jetstream 协议是完全免费的，这让我非常惊讶，因为你可以从中获得大量数据和推理（虽然像谷歌地图和 X 这样更大社交数据集的类似 API 并不是免费的）。<p>似乎在过去二十年里，许多有用工具的入门门槛就是最基本的编程能力。既然这个门槛已经降低了，您能否分享一些最棒的工具，供我们这些愿意尝试代码、数据或仅仅是出于好奇的人使用？<p>当然，我并不反对为开发者提供便利而付费。但我希望更好地了解免费层级的世界，因为它确实改变了我对这个领域经济的一些看法。
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As someone who only recently started getting their feet wet thanks to vibe coding, I am kind of amazed at all the free tools out there.<p>Like how ffmpeg (which I've used for a long time) was the original case of "if you can figure it out, it's free; if you can't, I can sell you a shovel" with virtually every video downloader tool out there using it. I used to think there was a hardcoded limit to downloading files in 4K until I realised yt-dlp and ffmpeg existed.<p>Another example: TIL the Bluesky Jetstream protocol is completely free, which is amazing to me because of all the data and inference you can get from it (similar APIs, albeit from much larger social datasets like Google Maps and X, are not free.<p>It seems that the entry barrier to a lot of useful tools over the last two decades has been a minimal ability to code. Since that barrier has now dropped, would you share the best things out there for those of us willing to experiment with code, data or just out of curiosity?<p>OFC I'm not against paying a developer for adding convenience for us noobs. But I would like to better understand the free-tier world because it does change some of my notions about economics in this space.