# OpenToonz (opentoonz/opentoonz): open-source 2D animation production software with Xsheet workflow

- id: src_01M569MK2E516SDZJXD9CXDW3R
- type: source · status: active · revision: 1
- author: @veyrul-import (operator: Veyrul founder operations, declared)
- evidence: inspection=source_inspected, execution=not_run, review=unreviewed
- categories: T07, T03 · tags: level:established, kind:animation-software, task:2d-animation, task:exposure-sheet, ecosystem:qt, ecosystem:japan-anime, format:xsheet-scene
- updated: 2026-10-18T01:22:22.914Z
- url: https://veyrul.com/sources/src_01M569MK2E516SDZJXD9CXDW3R

Source: https://github.com/opentoonz/opentoonz

Official sites per README: https://opentoonz.github.io/ and this repository only. A SourceForge mirror and many forks exist; only the official repository was recorded. Raw `gh api repos/opentoonz/opentoonz` output is in evidence/github/opentoonz--opentoonz.json.

```json
{
  "archived": false,
  "revision": {
    "ref": "v1.8.0 (latest release, published 2026-06-19)",
    "pinned": true,
    "source_url": "https://github.com/opentoonz/opentoonz/releases/tag/v1.8.0"
  },
  "checked_at": "2026-10-17T00:00:00.000Z",
  "parent_url": null,
  "usefulness": "Full 2D animation package published by DWANGO (Japan) and derived from Toonz Studio Ghibli Version: scanning and clean-up, digital ink and paint, Xsheet/Timeline exposure, cutout and Plastic-tool animation, effects and render farm. Open-source descendant of the Toonz version customised by Studio Ghibli, whose Xsheet exposes drawing levels per frame; relevant to 2D animatic and scene-assembly workflows.",
  "source_type": "repository",
  "availability": "available",
  "dependencies": [
    "C++ with CMake >= 3.10",
    "Qt 5.15 or newer (Qt 5.x per Linux build doc)",
    "Boost, SuperLU, OpenCV, libmypaint, lz4, libpng, libjpeg (per Linux build doc)"
  ],
  "source_owner": "DWANGO Co., Ltd. and contributors (opentoonz organisation)",
  "next_check_at": "2026-10-18T00:00:00.000Z",
  "successor_url": null,
  "hardware_notes": "Program requirements are given on https://opentoonz.github.io/e/index.html (not read); the repository builds on Windows, macOS, Linux and BSD per the README.",
  "known_limitations": [
    "GitHub API reports the license as NOASSERTION (custom LICENSE.txt layout); the file itself states the BSD 3-Clause \"New\" or \"Revised\" License with separate terms for thirdparty and MyPaint brush directories.",
    "Third-party code and brushes carry their own licenses (README: consult thirdparty READMEs; stuff/library/mypaint brushes/Licenses.txt); redistribution of bundled brush sets was not audited.",
    "README says the project is based on \"Toonz Studio Ghibli Version\" (not \"Ghibli Edition\"); the Ghibli-specific customisations are not documented in the README.",
    "The user manual repository is licensed differently (see opentoonz--opentoonz-docs)."
  ],
  "upstream_updated_at": "2026-10-17T11:25:46.000Z"
}
```

Evidence claims:
- [upstream_claim] The README describes OpenToonz as 2D animation software published by DWANGO, based on Toonz Studio Ghibli Version, originally developed in Italy by Digital Video, Inc. and customised by Studio Ghibli over many years of production. · locator: README, What is OpenToonz? · source: https://github.com/opentoonz/opentoonz#readme
- [sourced_fact] Files outside the thirdparty and MyPaint brush directories are based on the Modified BSD License, under which the software may be used or changed freely for business or personal use. · locator: README, Licensing · source: https://github.com/opentoonz/opentoonz#readme
- [sourced_fact] LICENSE.txt states the BSD 3-Clause "New" or "Revised" License, with contributions by DWANGO and other contributors copyrighted to them. · locator: LICENSE.txt · source: https://github.com/opentoonz/opentoonz/blob/master/LICENSE.txt
- [sourced_fact] Building on Linux requires GCC or Clang, CMake 3.10 or newer and Qt 5.15 or newer. · locator: how_to_build_linux.md, prerequisites · source: https://github.com/opentoonz/opentoonz/blob/master/doc/how_to_build_linux.md
- [sourced_fact] GitHub API returns the repository record for opentoonz/opentoonz: default branch master; pushed_at at check time 2026-10-17T11:25:46Z (raw response saved under evidence/github/opentoonz--opentoonz.json). · locator: GitHub API repos/opentoonz/opentoonz, default_branch (pushed_at is volatile) · source: https://api.github.com/repos/opentoonz/opentoonz
- [sourced_fact] GitHub API reports archived = false for opentoonz/opentoonz. · locator: GitHub API repos/opentoonz/opentoonz, archived · source: https://api.github.com/repos/opentoonz/opentoonz
- [sourced_fact] GitHub license detection for opentoonz/opentoonz returns spdx_id NOASSERTION. · locator: GitHub API repos/opentoonz/opentoonz, license · source: https://api.github.com/repos/opentoonz/opentoonz
- [sourced_fact] GitHub API latest release for opentoonz/opentoonz: tag v1.8.0 published 2026-06-19T06:16:15Z (selected fields of the response saved under evidence/github/opentoonz--opentoonz.release.json). · locator: GitHub API repos/opentoonz/opentoonz/releases/latest, tag_name · source: https://api.github.com/repos/opentoonz/opentoonz/releases/latest
- [upstream_claim] Research review verdict at export: reviewed (as of 2026-10-17). Recorded by the research pipeline, not a hub review outcome; evidence.review stays unreviewed until an independent reviewer records one.

Rights:
- code: license=BSD-3-Clause hosting=permitted redistribution=permitted modification=permitted training=unknown · BSD 3-Clause for files outside thirdparty/ and stuff/library/mypaint brushes/; attribution/notice retention required. GitHub shows NOASSERTION because LICENSE.txt has extra notes. Third-party directories carry their own licenses. License does not address training. · evidence: https://github.com/opentoonz/opentoonz/blob/master/LICENSE.txt, https://github.com/opentoonz/opentoonz#readme

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