CastKeeper

CastKeeper is a free application for archiving podcasts. It is designed to be easy to self-host, using either Docker or a self-contained executable. It supports a variety of file storage options.

CastKeeper was built primarily to do 2 things:

1. Store copies of podcasts, safe from being taken offline or being modified (e.g. due to abandonment or editorial changes), allowing for future re-listening.
2. Transcribe and index the text content of those podcasts, allowing searching for when certain topics were discussed (coming very soon in a future release).