Recently, @moreal built ap-thread-reader, a tool that displays threaded posts on a single page. Works with any ActivityPub platform, not just Mastodon.

Try it at https://ap-thread-reader.fly.dev/.

Built with Fedify and released as open source: https://github.com/moreal/ap-thread-reader.

More details at https://blog.moreal.dev/2026/02/ap-thread-reader-introduction/index.en.html.

@hongminhee it doesn't work with this object: https://federated.id/objects/2e6cf5a8-ffa8-4fca-b4cd-8e0c9a584a75

The way it's meant to be threaded: https://brutalinks.tech/~marius/2e6cf5a8-ffa8-4fca-b4cd-8e0c9a584a75

I suspect this is due to some objects in its replies collection having inReplyTo properties pointing to multiple IRIs.

@moreal