Mastodon supports both migrating your profile (followers and block lists, as well as metadata, but NOT content), AND exporting your content (posts, replies, and media uploads).
The process is pretty straightforward, and I've done this myself. You will lose your old content's persistent URL references, though federated copies of that content may still be accessible from other instances.
dredmorbius|3 years ago
Mastodon supports both migrating your profile (followers and block lists, as well as metadata, but NOT content), AND exporting your content (posts, replies, and media uploads).
The process is pretty straightforward, and I've done this myself. You will lose your old content's persistent URL references, though federated copies of that content may still be accessible from other instances.
See:
Moving or leaving accounts: <https://docs.joinmastodon.org/user/moving/>
It's also possible to move an entire instance to a new machine:
Migrating to a new machine: <https://docs.joinmastodon.org/admin/migrating/>