# opentoonz/opentoonz

OpenToonz - An open-source full-featured 2D animation creation software

Repository: https://github.com/opentoonz/opentoonz
Canonical: https://ross.abutalabs.com/products/opentoonz
Homepage: https://opentoonz.github.io/
Language: C++
License: NOASSERTION
License Family: other
Last push: 2026-08-26T18:35:05+00:00

## Health v2 (maintenance only)
Score: 96/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 99, release rhythm 89, longevity 100
- inputs: {"age_days": 3820, "days_push": 7, "days_rel": 75, "gap_med": 20, "n_releases_24m": 2}
- 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 7594, forks 861 (observed 2026-08-28T04:10:01.766490+00:00)

## What it is
OpenToonz is a free, open-source, full-featured 2D animation production application based on the Toonz software customized by Studio Ghibli. It covers the full pipeline from scanning hand-drawn art through digital painting to final compositing, and includes an SDK for developing image-processing effect plugins.

## Use cases
- create 2d animations for free
- open source alternative to toon boom harmony
- software used by studio ghibli for animation
- digital painting and compositing for hand-drawn animation
- scan and clean up pencil drawings for animation
- develop custom animation effects as plugins
- teach 2d animation in schools

## When to choose
- you need a professional-grade 2D animation tool at no cost for commercial or personal work
- you want raster and vector drawing, timesheet-based workflow, and node-based compositing in one app
- you want to extend animation effects via a plugin SDK or study production-grade C++ code
- you need a tool with proven use in real anime production pipelines

## When to avoid
- you need lightweight vector motion-graphics or UI animation (e.g. After Effects-style work)
- you want a simple beginner-friendly drawing app rather than a full production pipeline
- you need 3D animation or skeletal cut-out rigging as the primary workflow
- you require a permissively licensed library to embed in your own product - it is a standalone application

## Facets
- artifact type: application
- maturity: active
- function: image-processing, graphics, gui, plugin-system, sdk
- domain: graphics, media, cross-platform, developer-tools
- platform: windows, cross-platform, cpp
- tags: 2d-animation, animation-software, toonz, studio-ghibli, raster-graphics, vector-graphics, compositing, scanning, effects-sdk, macos, linux, desktop

## Member repositories
- opentoonz/opentoonz (main) score 96

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:10:01.766490+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 2026-08-29T17:36:52.646617+00:00, confidence not recorded.
  - readme: https://github.com/opentoonz/opentoonz (fetched 2026-08-28T04:10:01.766490+00:00, sha b7eb400be79f)
  - homepage: https://opentoonz.github.io/ (fetched 2026-08-29T08:32:08.795209+00:00, sha 01e8cd909049)
- Data as of 2026-08-30T08:39:29.467469+00:00.