BiglyBT

In addition to the standard Bittorrent Client Features, BiglyBT also offers:

Downloading Features

Swarm Merging to complete torrents that do not have all the available bits, and to speed up downloading
Rate limiting globally, by download, by tag, by peer-set (e.g. peers from a given country), by network (public/I2P) and even by peer. Overall capacity limits are also supported to work with ISP limits. Limits can also be scheduled by time of day etc.
WebTorrent support - BiglyBT can download and seed to WebTorrent peers. There is also a built-in WebTorrent tracker.

Robust settings. If you want to control it, there’s probably a setting for it!
Remote controlling via Android app (any android app that supports the Transmission RPC will do, but we recommend ).

Tags and Categories. Allows you also to set share ratios, file locations, speed limits, etc for a group of torrents.
Meta-search, with the ability to add and create custom site templates
Swarm Discoveries which lists torrents that other people have downloaded along with the torrents you download.
Tag Discovery to discover what other users have tagged content with. This can be very helpful before deciding to download the content.
Subscriptions to RSS feeds as well as search results. You can also create your own subscription feed to share with others
Decentralized ratings and comments. You can view them before the torrent is added to BiglyBT.
Decentralized public and anonymous chats with default channels for individual torrents, tags, subscriptions, and trackers

I2P support (using I2P DHT) for anonymous downloading
Detection of VPNs for better integration
Ability to proxy search results, subscriptions, and internal browser connections through Tor if site is inaccessible

Media Playback
Media Conversion (Transcoding)
UPnP Media Server and DLNA support, allowing devices to connect and browse your content, and allowing BiglyBT to send content directly to devices.