# diffusionstudio/core

A fast, browser based video compositing engine powered by WebCodecs

Repository: https://github.com/diffusionstudio/core
Canonical: https://ross.abutalabs.com/products/diffusionstudio-core
Homepage: https://www.diffusion.studio/core-rendering-engine
Language: TypeScript
License: MPL-2.0
License Family: copyleft
Topics: video, webcodecs, browser, typescript, audio, canvas2d, composer, composition, engine, image, media, render
Last push: 2025-11-18T19:10:12+00:00

## Health v2 (maintenance only)
Score: 48/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 52, release rhythm 40, longevity 54
- inputs: {"age_days": 764, "days_push": 288, "days_rel": 578, "gap_med": 3.0, "n_releases_24m": 11}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1228, forks 140 (observed 2026-08-28T04:04:03.554988+00:00)

## What it is
Diffusion Studio Core is a TypeScript video compositing engine that runs in the browser, built on WebCodecs and Canvas2D for hardware-accelerated media processing. It provides a declarative timeline API for layering video, audio, image, and text clips, supporting both interactive playback and high-fidelity rendering.

## Use cases
- build a browser-based non-linear video editor
- compose and concatenate video clips in the browser
- add captions, text, and transitions to videos programmatically
- render videos with hardware acceleration via WebCodecs
- create timeline-based media applications with keyframe animations
- remove silence from video or audio tracks in the browser

## When to choose
- you are building a video editing or timeline-based media app that runs in the browser
- you want hardware-accelerated video decoding and rendering without server-side processing
- you need a declarative composition API for layering clips, text, shapes, and effects

## When to avoid
- you need server-side or Node.js-native video processing with full codec control
- your project must support older browsers without WebCodecs support
- you need a complete end-user video editor out of the box rather than an engine to build one

## Facets
- artifact type: library
- maturity: active
- function: video-processing, audio-processing, image-processing, animation
- domain: web-development, frontend, media
- platform: browser
- tags: webcodecs, video-compositing, timeline, video-editor, canvas2d, typescript, hardware-accelerated, non-linear-editing, video, web-server, nodejs

## Member repositories
- diffusionstudio/core (main) score 48

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:04:03.554988+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 2026-08-30T06:15:10.695544+00:00, confidence not recorded.
  - readme: https://github.com/diffusionstudio/core (fetched 2026-08-28T04:04:03.554988+00:00, sha 2f8f578155dd)
  - homepage: https://www.diffusion.studio/core-rendering-engine (fetched 2026-08-29T12:22:45.337455+00:00, sha 02174405443b)
- Data as of 2026-08-30T08:39:29.467469+00:00.