# vrm-c/UniVRM

UniVRM is a gltf-based VRM format implementation for Unity. English is here https://vrm.dev/en/ . 日本語 はこちら https://vrm.dev/

Repository: https://github.com/vrm-c/UniVRM
Canonical: https://ross.abutalabs.com/products/univrm
Homepage: https://vrm.dev/en
Language: C#
License: MIT
License Family: permissive
Topics: unity3d, gltf
Last push: 2026-08-20T07:40:06+00:00

## Health v2 (maintenance only)
Score: 93/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 98, release rhythm 82, longevity 100
- inputs: {"age_days": 3061, "days_push": 13, "days_rel": 40, "gap_med": 35.0, "n_releases_24m": 17}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 3364, forks 489 (observed 2026-08-28T04:07:58.221669+00:00)

## What it is
UniVRM is the standard Unity implementation of the VRM 3D humanoid avatar file format, which extends glTF 2.0. It supports importing and exporting VRM 1.0, VRM 0.x, glTF 2.0, and VRM-Animation files at both editor and runtime.

## Use cases
- load vrm avatar models in unity
- export unity character as vrm file
- import gltf 2.0 models into unity
- convert vrm 0.x to vrm 1.0
- load 3d avatars at runtime in a unity game
- play vrm animations in unity

## When to choose
- you need VRM avatar support in a Unity project
- you want runtime or editor import/export of glTF 2.0 and VRM files
- you need cross-platform avatar loading including mobile and WebGL

## When to avoid
- you work in a non-Unity engine like Unreal or Godot
- you only need generic glTF handling outside the VRM ecosystem
- you use a Unity version older than 2022.3 LTS with the latest release

## Facets
- artifact type: library
- maturity: active
- function: parser, serialization, image-processing, animation
- domain: graphics, cross-platform, developer-tools
- platform: windows, cross-platform, cpp
- tags: unity, vrm, gltf, 3d-avatars, csharp, import-export, vtuber, runtime-import, game-development, macos, linux, ios, android

## Member repositories
- vrm-c/UniVRM (main) score 93

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:07:58.221669+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 2026-08-29T18:40:19.166603+00:00, confidence not recorded.
  - readme: https://github.com/vrm-c/UniVRM (fetched 2026-08-28T04:07:58.221669+00:00, sha dbad419708ae)
  - homepage: https://vrm.dev/en (fetched 2026-08-29T09:33:42.561414+00:00, sha 00150347ca35)
  - site_page: https://vrm.dev/en/vrm/vrm_about (fetched 2026-08-29T09:33:42.564226+00:00, sha 62ec1e95b7b1)
- Data as of 2026-08-30T08:39:29.467469+00:00.