Brutaldon is an alternative FOSS client for Mastodon that does not use JavaScript:

- Brutaldon: https://brutaldon.org

- Source: https://gitlab.com/brutaldon/brutaldon

Because Mastodon has an open API, you don't need to use the official Mastodon web client. Twitter upset a lot of users when it limited access to its API because many alternative Twitter clients were rendered useless.

Does Twitter load without JavaScript? I do not think the tiny number of uber-nerds who disable JavaScript have any effect on Mastadon.

I disable Javascript on occasion to save power.

Twitter definitely does not load without loading several megabytes of Javascript. Nitter.net is a quick and easy substitute that loads instantly without it, though some video playback still requires Javascript (HLS video).

How much power have you quantified saving by disabling JavaScript over the course of a week?

I can't do any objective measurements but there's a clear impact in battery life while browsing with Javascript disabled. The entire web becomes snappier and loading times instantly drop.

Doing so also breaks all web applications (and web applications posing as websites, i.e. React rendering) so it's not something I turn on permanently. I usually only disable JS when my phone is running low and I'm not near a charger, or when I'm trying to read something and the terrible website hijacks scrolls/taps/somehow makes my phone run hot doing stuff in the background.

Huge? Globally? How many poeple do you reckon have JS disabled?