Muffle.
Licence feature

Hide X posts by keyword, or by who wrote them

Mute an account on X and its posts still leave a grey box with a button to reveal them. You know something is there, so you press it. That is a delay, not a mute.

What X mute cannot do

CapabilityBuilt-in muteMuffle
Hide posts containing certain wordsYesYes
Hide one account you nameYesYes
Hide anyone whose bio mentions somethingNoYes
Hide anyone whose display name mentions itNoYes
Still hidden when someone else reposts themNoYes
Leaves a box you can press to revealYesNever

Matching the person, not just the post

This is the part nothing else does. A rule on the word crypto hides posts that say crypto. A rule on a bio hides everyone whose bio says it, whatever they are posting about today.

In practice that is how you actually clear a timeline. You are rarely tired of a word. You are tired of a category of account, and their bios say exactly which category they are in.

It shows its work

A filter that silently eats posts is impossible to trust. Muffle keeps the last 300 hidden posts with the rule that caught each one, so you can check it is hiding what you meant and loosen a rule that went too wide.

It also warns you if X changes the shape of its data and a rule stops matching, rather than letting you believe it is still working.

It is not out yet

Leave your email and you hear once, on the day it goes live, while it is still $29$19 a year.

The rest of what it does