Torrent Clients

BiglyBT

BiglyBT is a free, open-source BitTorrent client built from the Azureus and Vuze codebase with the advertising stripped out. It adds swarm merging, tag-based rules, plugin support, I2P anonymity, and a built-in media server for streaming finished downloads.

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✓ Software download·License information available·Updated September 16, 2026
DeveloperBigly Software
License—
File size33.1 MB
Languageen
Downloads10

BiglyBT Feature-Rich Open Source BitTorrent Client

BiglyBT is a BitTorrent client for people who want to configure how downloads behave rather than accept defaults. Torrents and magnet links open into a queue where rules decide which files start first, where they are saved, and how much bandwidth each may use. Tags group torrents and apply share ratios, speed caps, and destination folders automatically. From the same window you can search torrent indexes, follow RSS feeds as subscriptions, watch swarm statistics, and play or stream completed media. The client exposes an unusual amount of control, but the defaults work fine for anyone who simply wants to download a file.

The feature that gets the most attention is swarm merging. When several torrents contain the same files, BiglyBT combines the peer pools, which can rescue a download whose original swarm has lost pieces and can speed up a slow one. Privacy options go further than most clients: downloads can run over I2P for anonymity, search and subscription requests can be proxied through Tor, and the client detects when a VPN is active. WebTorrent support means it can exchange data with browser-based peers. Everything else is extensible through plugins, covering transcoding, remote control, and the UPnP media server that lets a television browse finished downloads. If your interest is music communities and chat rather than trackers, Nicotine+ serves that network instead.

Benefits of Using BiglyBT

What sets BiglyBT apart is that its advanced features are not decoration. Swarm merging can finish a torrent that other clients would leave stuck at 98 percent, simply by borrowing peers from duplicates of the same content. Bandwidth rules are granular enough to matter on a shared line: limits can apply per download, per tag, per network, or per peer set, and can change with the time of day. Tags turn organisation into automation, applying save paths, share ratios, and speed caps to a whole group of torrents at once. For privacy, I2P and proxied search requests are built in rather than bolted on. Media handling closes the loop, with playback, transcoding, and a DLNA server that lets a TV or console browse what you have downloaded. Plugins and subscriptions cover almost everything else.

BiglyBT features

Key capabilities and highlights.

Feature 1

Swarm Merging

BiglyBT can combine peer pools from several torrents that hold the same files, filling in pieces no single swarm still has and accelerating transfers overall. It turns a stalled download into one that completes instead of sitting at partial availability.

Feature 2

Tags and Categories With Automation

Grouping torrents under a tag applies a save folder, share ratio, speed limit, and priority to everything in it. Rules can then run automatically, so new downloads land in the right place without manual sorting each time.

Feature 3

Granular Bandwidth Control

Speed limits can be set globally, per download, per tag, per peer set, or per network, and scheduled by time of day to match an ISP cap. That level of control keeps torrenting from interfering with video calls or other work on the same connection.

Feature 4

I2P and VPN-Aware Privacy

Downloads can run over the I2P network for anonymity, and search or subscription traffic can be routed through Tor when a site is blocked. BiglyBT also detects an active VPN, which helps it behave sensibly on split-tunnel setups.

Feature 5

Meta-Search and RSS Subscriptions

A built-in meta-search queries multiple torrent sites at once, with customizable templates for adding your own, and subscriptions can follow RSS feeds or saved search results. New matches arrive as torrents you approve, rather than requiring manual searching.

Feature 6

WebTorrent Support

BiglyBT exchanges data with WebTorrent peers as well as standard clients, and it includes a WebTorrent tracker. That extends the reach of a swarm to browser-based participants, which occasionally means available bandwidth where other clients find nothing.

Feature 7

Media Playback, Transcoding, and DLNA

Finished downloads can be played directly, converted on the fly to a format another device understands, or served through a UPnP and DLNA media server. A television or console on the same network can then browse your library without copying files.

Feature 8

Plugins and Remote Control

An extensive plugin framework adds transcoding, chat, publishing, and other extensions, while remote control is available through apps that speak the Transmission RPC protocol. Settings are correspondingly deep, which suits anyone who wants the client to behave exactly as specified.

Old versions

Browse historical releases and previous builds.

4.0.0.0December 16, 2025
3.9.0.0September 3, 2025
3.8.0.2March 10, 2025
3.8.0.0February 18, 2025
3.6.0.0April 24, 2024

Frequently asked questions

Common questions about BiglyBT.

What is BiglyBT?

It is a free, open-source BitTorrent client derived from the Azureus and Vuze codebases, with the bundled software and advertising removed. It keeps the advanced features of its ancestors and adds more on top.

What does swarm merging actually do?

When several torrents share identical files, BiglyBT's swarm merging downloads from all of their peers at once. A torrent with missing pieces can be completed from a duplicate, and well-seeded files transfer faster because more sources are in play.

Is BiglyBT free?

Yes. It is open-source software with no advertising and no paid tier, funded by donations from the community. Nothing bundled with the installer tries to add extra programs or change browser settings.

Can I control it remotely?

Yes. Remote control works through apps that speak the Transmission RPC protocol, so a phone can connect to BiglyBT running on your desktop to add torrents and check progress without sitting at the machine.

Does it support anonymous downloading?

BiglyBT can transfer over the I2P network, which routes traffic through a decentralised anonymity layer, and it can proxy search and subscription requests through Tor. Neither option replaces careful habits, but both give you more control over what your traffic reveals.

Why is the settings list so long?

Because the client exposes options most torrent applications hide, from per-peer bandwidth rules to tag automation and VPN detection. The defaults work well, so you only need the deeper settings when a specific behaviour has to change.

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Download BiglyBT

BiglyBT is a free, open-source BitTorrent client built from the Azureus and Vuze codebase with the advertising stripped out. It adds swarm merging, tag-based rules, plugin support, I2P anonymity, and a built-in media server for streaming finished downloads.