# nodecg/nodecg

Create broadcast graphics using Node.js and a browser

Repository: https://github.com/nodecg/nodecg
Canonical: https://ross.abutalabs.com/products/nodecg
Homepage: https://nodecg.dev
Language: TypeScript
License: MIT
License Family: permissive
Last push: 2026-06-28T14:44:37+00:00

## Health v2 (maintenance only)
Score: 92/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 89, release rhythm 90, longevity 100
- inputs: {"age_days": 4480, "days_push": 66, "days_rel": 66, "gap_med": 0, "n_releases_24m": 38}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1302, forks 164 (observed 2026-08-28T04:04:18.258094+00:00)

## What it is
NodeCG is a broadcast graphics framework and application that lets you build dynamic, real-time on-air graphics using standard web technologies (Node.js plus HTML/CSS/JS). It provides a server, a control dashboard, and an API for syncing data between dashboard panels and graphics pages rendered as browser sources in tools like OBS Studio, vMix, XSplit, and CasparCG.

## Use cases
- create broadcast graphics for livestreams using web tech
- build real-time scoreboards and overlays for esports tournaments
- render dynamic lower-thirds and tickers as OBS browser sources
- control on-air graphics from a web dashboard during a live show
- build charity fundraiser or speedrun marathon broadcast overlays
- replace expensive character generation hardware with free software

## When to choose
- you need dynamic, data-driven broadcast graphics rendered via browser sources
- you want full freedom to use any web framework or drawing library for your graphics
- you need a dashboard to control graphics in real time during a broadcast
- you want a free, open-source alternative to commercial CG systems

## When to avoid
- you need built-in drawing primitives or templates with no coding
- you need static, non-interactive video overlays that a simple OBS plugin can handle
- your streaming software cannot render modern HTML browser sources
- you want a turnkey graphics solution without writing JavaScript

## Facets
- artifact type: framework
- maturity: active
- function: web-framework, websocket, developer-tools, gui, cli
- domain: web-development, media, frontend, backend
- platform: cross-platform, self-hosted
- tags: broadcast-graphics, character-generation, obs-studio, streaming, livestream-production, dashboard, browser-source, casparcg, vmix, xsplit, real-time, nodejs, web-server, docker

## Member repositories
- nodecg/nodecg (main) score 92

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:04:18.258094+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 2026-08-30T04:52:10.808279+00:00, confidence not recorded.
  - readme: https://github.com/nodecg/nodecg (fetched 2026-08-28T04:04:18.258094+00:00, sha 7cb6cf03de8c)
  - homepage: https://nodecg.dev (fetched 2026-08-29T12:09:51.488547+00:00, sha 148c93a30df7)
  - site_page: https://www.nodecg.dev/docs/what-is-nodecg (fetched 2026-08-29T12:09:51.497653+00:00, sha 32d4bd78d06a)
  - site_page: https://www.nodecg.dev/docs/installing (fetched 2026-08-29T12:09:51.499764+00:00, sha 46f900140f27)
  - site_page: https://www.nodecg.dev/docs/creating-bundles (fetched 2026-08-29T12:09:51.501411+00:00, sha 0ed4ae0aa48a)
- Data as of 2026-08-30T08:39:29.467469+00:00.