Tide vs qBittorrent

Why this comparison exists

qBittorrent is the correct default. It has been in development since 2006, it is in every self-hosting guide, and if you ask the internet what torrent client to run on a NAS the answer comes back qBittorrent almost every time. That is earned, and Tide does not dispute it.

Tide exists because a specific group of people are not well served by that default: self-hosters who add torrents by hand, run on modest hardware, and find that the mature option asks them to configure a great deal to get behaviour they expected by default.

Queue control as the primary interface

Open qBittorrent’s WebUI and you get a table of torrents. Queueing exists — it is good, and it is configurable — but it lives in Options → Downloads, several clicks from the thing you are looking at.

Tide inverts that. The board is built around the state of the queue: what is running, what is waiting, what stalled, and what is seeding past its goal. Maximum active downloads and maximum active seeders are enforced rather than advisory, and Tide promotes queued items as slots free. Default ratio and seed-time goals are applied at the moment a torrent is added, so retention is a policy you set once rather than a decision you make per item.

If you only ever have three torrents running this is a difference that does not matter. At thirty, on a box that cannot sustain thirty, it is the difference between a working download queue and a machine that is thrashing.

The memory guard

This is the feature most specific to running in a container, and it is worth explaining because it is also why Tide’s Compose example insists on mem_limit.

WebTorrent holds pieces in memory. With a large swarm and a fast connection, memory use climbs. qBittorrent has no notion of the container it is inside, so the usual answer is to set a hard limit and accept that the OOM killer will eventually enforce it — which means a killed container and interrupted downloads.

Tide reads the cgroup memory cap and treats it as a threshold rather than a cliff. Above TIDE_MEMORY_PAUSE_MB it pauses torrents; below TIDE_MEMORY_RESUME_MB it resumes them. The downloads slow down instead of the process dying.

The catch is that this only works if there is a limit to read:

    mem_limit: 4g
    environment:
      TIDE_MEMORY_LIMIT_MB: "4096"
      TIDE_MEMORY_PAUSE_MB: "3584"
      TIDE_MEMORY_RESUME_MB: "3072"

Leave mem_limit off and the guard has nothing to guard against.

Where qBittorrent is plainly better

RSS automation. qBittorrent has a built-in RSS reader with filtering and auto-download rules. Tide has nothing equivalent. If you follow release feeds, this alone decides it.

*The arr ecosystem. Radarr, Sonarr, Lidarr and Prowlarr all treat qBittorrent as a first-class download client. Tide is not a documented integration target for any of them. An automated pipeline that hands releases to a client will not hand them to Tide.

Maturity. Nearly twenty years of edge cases — odd trackers, broken magnet links, unusual filesystems, IPv6 quirks — have been found and fixed in qBittorrent. Tide is on v1.4.0. Some of those edge cases are still ahead of it.

Version pinning. qBittorrent images carry real version tags. Tide currently publishes only latest and main on Docker Hub, so reproducible deploys mean pinning by digest:

    image: getcoral/tide@sha256:...

Community. If something breaks at 2am, there are thousands of qBittorrent answers already written. There are not thousands of Tide answers.

Where Tide is plainly better

Container-aware memory handling, as above — qBittorrent has no equivalent.

Jellyfin sign-in. Point TIDE_JELLYFIN_URL at your server and people use the account they already have, with torrent management limited to administrators. Tide stores no Jellyfin API key; it uses the server purely as an identity provider. One fewer credential in your password manager.

Sane import paths by construction. Tide derives its in-progress directory as a sibling of the completed one, so /library/downloads/complete implies /library/downloads/incomplete. Keeping both under a single mount means finishing a torrent is a rename rather than a copy. It is a small thing that people get wrong constantly in qBittorrent setups, where it produces mysteriously slow completions.

It is one container. No plugin layer, no WebUI theme, no Python post-processing scripts.

A reasonable migration path

You do not have to choose. Run both, on separate ports with separate data directories, and let qBittorrent keep whatever your automation feeds it while Tide handles manual downloads. Give them separate directory trees — two clients writing into the same tree will fight.

If Tide earns it after a few weeks, consolidate. If it does not, you have lost one container.

Start with the Tide module page for the full Compose setup, or the Jellyfin Docker Compose stack guide if you want Tide alongside Jellyfin and Librarian in one file.