The website doesn’t tell me why I would use this instead of just Rolldown.

The “What is tsdown” link goes to a video with pre-roll ads.

I put the video URL into Gemini and asked it what it does. Gemini hallucinated a comparison with Rspack.

I followed the link to documentation from the YouTube description and it took me back to the main page that does not have a description of what it does.

There is an FAQ with a single question:

> Will tsdown support stub mode (similar to unbuild)?

Is there any kind of text description available for what this is and why I – as somebody who is currently writing a lot of front-end code – should care?

I’m using tsdown for a collection of packages and am switching a current project (https://flystorage.dev)over to it. I use it in “unbundle” mode, which doesn’t bundle but does file for file transpilation. To me, it’s an opinionated rolldown configuration with a simplified API. You can script up in a couple of lines of code which packages in a monorepo to compile and what formats to compile for. An example of that can be found here: https://github.com/duna-oss/deltic/blob/main/tsdown.config.t...

Compared to using plain tsc to compile the code, is that it’s a lot quicker. The compiled code has some odd conventions, like using void 0 instead of undefined, but … whatever works!

So far, it has been an easy-entry high-ROI tool that helps me publish TS/JS tools quite easily.