Encrypting your media library: why Plex and Jellyfin aren't enough (and the alternative that's coming)

Q: How do you store your films encrypted on a host?

You need to encrypt each file before uploading, with a key that never leaves your devices. The host then only stores encrypted blocks, undecipherable to it. That's the approach of an encrypted multimedia vault like Kofrio.

In short: Plex and Jellyfin are excellent for organizing and streaming your media, but they don't encrypt your files. On your disk, in a backup or on a remote host, your library stays readable by anyone who can access it. An encrypted multimedia vault closes that blind spot: your files are sealed with AES-256 and can only be decrypted on your own devices.

Last updated: June 2026.

Plex and Jellyfin: great for organizing and streaming

Let's be fair: Plex and Jellyfin do their job very well. They scan your folders, fetch artwork and metadata (TMDB, etc.), sort films and series, and stream it all to your screens, locally or remotely. Jellyfin has the added benefit of being free and open-source.

For management and streaming, they're references. That's not where the problem is.

The blind spot: your files aren't encrypted

Both Plex and Jellyfin read your files as-is, in clear text, on disk. Concretely:

On your PC or NAS, anyone with access to the machine (or the drive) can open, copy or browse your library.
On a backup or a lost external drive, same thing: the files are readable.
On a remote host or cloud, this is the most sensitive point: the host — and anyone who accesses its servers — can technically read your files. You trust them by default.

Disk encryption (BitLocker, VeraCrypt…) helps when the machine is off, but once the system boots and the server is running, the files are in clear text again for applications — and that kind of encryption doesn't follow you onto a third-party host.

What an encrypted multimedia vault brings

The idea is simple: encrypt every file at rest, and decrypt it only on the devices you've authorized. The benefits:

AES-256 encryption: films, series, music, photos, games, e-books, documents and software are sealed. Without the key, a file is unreadable — gibberish.
Store anywhere: locally, on a cheap standard host, or via P2P. The file stays encrypted everywhere; the host only sees undecipherable data.
Readable only on your devices: playback and decryption happen client-side, on authorized machines — not on the server.
Private sync and sharing: share your encrypted library with family over an equally encrypted channel.

This is exactly the niche Plex and Jellyfin don't cover: the privacy of your files, at rest and in transit.

Store your library on a cheap host — without it being able to read it

This is the use case that changes everything. "Standard" online storage costs a fraction of a specialized cloud, but we hesitate to put our media library there for fear of the host's eyes (or a leak).

With a client-side encrypted approach, the math changes: you get the cheapest storage while keeping files undecipherable to the host. You get the best of both worlds — cost and privacy.

Where does Kofrio fit in?

Kofrio is an encrypted multimedia vault in development, built precisely for this need:

AES-256 GCM with dual validation (TPM chip on the PC + VPS gatekeeper), a zero-knowledge approach.
All your media in a single library: video, audio, photos, games (with emulation), books, documents, software.
Local, standard host or P2P — the file always stays encrypted.
Sync across your devices and sharing with your circle, over an encrypted channel.

Kofrio isn't launched yet. If a truly private, self-hosted media library speaks to you, leave your email on kofrio.com: you'll be notified once, on launch day. No spam.

FAQ

Do Plex or Jellyfin encrypt files?

No. They read your files in clear text on disk to organize and stream them. The content isn't encrypted at rest by the application itself.

Can you encrypt a Plex or Jellyfin library?

You can encrypt the disk (BitLocker, VeraCrypt, LUKS), which protects the machine when it's off. But once the server is running, files become readable to applications again, and that encryption doesn't protect you on a third-party host. For at-rest protection that follows the file everywhere, you need file-level, client-side encryption.

How do you store your films encrypted on a host?

You need to encrypt each file before uploading, with a key that never leaves your devices. The host then only stores encrypted blocks, undecipherable to it. That's the approach of an encrypted multimedia vault like Kofrio.

Does encryption slow down playback or streaming?

AES-256 decryption is hardware-accelerated on modern processors; the impact on playback is negligible in most cases. The cost is mainly in the initial encryption of the files.

What is a "multimedia vault"?

It's a single, encrypted library that brings together all your media types (films, series, music, photos, games, e-books, documents, software), storable anywhere, and decryptable only on your authorized devices.

Want to be notified when Kofrio launches? Leave your email at kofrio.com.