# mrdoob/frame.js

JavaScript Sequence Editor

Repository: https://github.com/mrdoob/frame.js
Canonical: https://ross.abutalabs.com/products/framejs
Homepage: https://framejs.org
Language: JavaScript
License: MIT
License Family: permissive
Topics: javascript, animation, editing, demoscene
Last push: 2025-09-18T11:27:38+00:00

## Health v2 (maintenance only)
Score: 51/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 42, release rhythm 35, longevity 100
- inputs: {"age_days": 5028, "days_push": 349, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1170, forks 191 (observed 2026-08-28T04:03:51.382121+00:00)

## What it is
frame.js is a JavaScript sequence editor for creating timed animations and interactive scenes in the browser, commonly used for demoscene-style productions. It includes a web-based editor and a player for rendering sequences, with examples built on three.js.

## Use cases
- build a timeline-based animation sequence in the browser
- create demoscene-style demos with synchronized visuals
- edit and play back three.js animation sequences
- sequence WebGL scenes with keyframed timing
- make interactive web animations with a visual editor

## When to choose
- you need a lightweight browser-based sequence editor for WebGL/three.js animations
- you are creating demoscene or music-video style timed visual productions
- you want a minimal timeline tool that integrates with custom JavaScript renderers

## When to avoid
- you need a full-featured video editor or After Effects replacement
- you require a stable, well-documented production tool - it is a work in progress
- your animations are not JavaScript/WebGL based, e.g. pure video editing

## Facets
- artifact type: library
- maturity: experimental
- function: animation, editor, graphics
- domain: web-development, graphics
- platform: browser
- tags: demoscene, sequence-editor, timeline, threejs, creative-coding, game-development, javascript, web

## Member repositories
- mrdoob/frame.js (main) score 51

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:03:51.382121+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 2026-08-30T06:28:37.572338+00:00, confidence not recorded.
  - readme: https://github.com/mrdoob/frame.js (fetched 2026-08-28T04:03:51.382121+00:00, sha c29b39b795b9)
  - homepage: https://framejs.org (fetched 2026-08-29T12:34:26.551284+00:00, sha b01ffbbb0f0f)
- Data as of 2026-08-30T08:39:29.467469+00:00.