# tinyobjloader/tinyobjloader

Tiny but powerful single file wavefront obj loader

Repository: https://github.com/tinyobjloader/tinyobjloader
Canonical: https://ross.abutalabs.com/products/tinyobjloader
Language: C++
License: NOASSERTION
License Family: other
Topics: c-plus-plus, loader, wavefront, 3d, cpp
Last push: 2026-06-19T10:42:44+00:00

## Health v2 (maintenance only)
Score: 62/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 88, release rhythm 8, longevity 100
- inputs: {"age_days": 5131, "days_push": 75, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 3866, forks 649 (observed 2026-08-28T04:08:27.675537+00:00)

## What it is
A tiny, dependency-free Wavefront .obj/.mtl parser available as a single-header C++11 library and a pure C11 implementation with polygon tessellation. It handles millions of polygons efficiently and includes Python bindings.

## Use cases
- load obj files in a renderer
- parse wavefront obj models in c++
- import 3d meshes into a game engine
- load obj with mtl materials
- parse large obj files with millions of triangles
- read obj files from python
- embed an obj loader in a ray tracer

## When to choose
- you need a lightweight, header-only obj parser with no dependencies
- you need to load very large meshes (millions of polygons) efficiently
- you want a pure C11, freestanding-capable loader
- you need double-precision vertex data for HPC work

## When to avoid
- you need to load formats other than obj/mtl (e.g. glTF, FBX)
- you need scene graph or animation data
- you want a full 3D asset pipeline rather than a single-format parser

## Facets
- artifact type: library
- maturity: active
- function: parser, graphics, file-system
- domain: graphics, computer-vision, files
- platform: cpp, c, cross-platform, python
- tags: wavefront-obj, mtl, single-header, 3d-models, mesh-loading, tessellation, game-development

## Member repositories
- tinyobjloader/tinyobjloader (main) score 62

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:08:27.675537+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 2026-08-29T18:25:51.272295+00:00, confidence not recorded.
  - readme: https://github.com/tinyobjloader/tinyobjloader (fetched 2026-08-28T04:08:27.675537+00:00, sha 44a274b476eb)
- Data as of 2026-08-30T08:39:29.467469+00:00.