# webtorrent/bittorrent-tracker

🌊 Simple, robust, BitTorrent tracker (client & server) implementation

Repository: https://github.com/webtorrent/bittorrent-tracker
Canonical: https://ross.abutalabs.com/products/bittorrent-tracker
Homepage: https://webtorrent.io
Language: JavaScript
License: MIT
License Family: permissive
Topics: javascript, tracker, webtorrent, bittorrent, bittorrent-tracker, tracker-server, torrent, client, server, browser, webrtc, nodejs, hacktoberfest
Last push: 2026-08-12T00:52:17+00:00

## Health v2 (maintenance only)
Score: 82/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 97, release rhythm 53, longevity 100
- inputs: {"age_days": 4543, "days_push": 22, "days_rel": 100, "gap_med": 229, "n_releases_24m": 4}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1937, forks 331 (observed 2026-08-28T04:05:57.155830+00:00)

## What it is
A Node.js and browser library implementing both BitTorrent tracker client and server, supporting HTTP, UDP, and WebTorrent (WebSocket/WebRTC) tracker protocols. It is the tracker component used by WebTorrent and provides peer discovery for torrent swarms.

## Use cases
- run a bittorrent tracker server in nodejs
- announce torrents to trackers from a torrent client
- add webtorrent websocket tracker support to a browser torrent client
- scrape peer statistics from bittorrent trackers
- build peer-to-peer file sharing with webrtc trackers
- implement udp tracker protocol bep 15

## When to choose
- you need tracker client or server functionality in JavaScript for Node or the browser
- you are building on WebTorrent and need WebSocket tracker support
- you want a well-tested tracker implementation with HTTP, UDP, and scrape support

## When to avoid
- you need a full torrent client rather than just tracker peer discovery
- you need DHT-based peer discovery without a central tracker
- your project is not in the JavaScript/Node ecosystem

## Facets
- artifact type: library
- maturity: active
- function: networking, p2p, http-server, websocket
- domain: networking, developer-tools, microservices
- platform: browser, cross-platform
- tags: bittorrent, tracker, webrtc, webtorrent, peer-to-peer, torrent-client, nodejs, javascript

## Member repositories
- webtorrent/bittorrent-tracker (main) score 82

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:05:57.155830+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T03:08:25.010162+00:00, confidence not recorded.
  - readme: https://github.com/webtorrent/bittorrent-tracker (fetched 2026-08-28T04:05:57.155830+00:00, sha 5926e44279d9)
  - homepage: https://webtorrent.io (fetched 2026-08-29T10:48:02.718190+00:00, sha bc9de1481dcf)
  - site_page: https://webtorrent.io/docs (fetched 2026-08-29T10:48:02.727117+00:00, sha 28b3bfe003c6)
  - site_page: https://webtorrent.io/faq (fetched 2026-08-29T10:48:02.729842+00:00, sha cb059616fd40)
- Data as of 2026-08-30T08:39:29.467469+00:00.