yt-dlp can directly process Twitter and Nitter URLs because it extracts the original video URL from the page source.
Since Nitter is a privacy-focused alternative front-end for X (formerly Twitter), it often serves videos as HLS streams
: You must play the video for at least a few seconds on Nitter so the extension can "catch" the HLS stream.
For many users, the simplest way to download is directly through the browser interface, though success depends on the specific instance's configuration. Right-Click "Save As"
The easiest way to download a video from Nitter is to use the browser's built-in download feature. Here's how:
: Although designed for Twitter, this extension can often be configured to work with alternative front-ends to grab video streams.