KhronosGroup/glTF-Validator

View on GitHub

Tool to validate glTF assets.

Stars: 470
Forks: 77
Open beginner issues: 0
Indexed issues: 53

Dominant language: Dart
License: Apache-2.0
Last GitHub push: Dec 30, 2025
Latest indexed: Sep 18, 2026
Contributing guide: No contributing guide
Code of conduct: Code of conduct
Beginner labels: help wanted
PR merge metrics: No merged PRs in 30d

Beginner friendly Everything

Open All

53 open issues indexed

Web-validator says "there are errors" but provides no more information Open

Difficulty 4/5 3-5 days Newbie friendliness 38/100

KhronosGroup/glTF-Validator#253 · 1 comment · Opened May 25, 2026
Allow for extension-defined attribute names Open

Difficulty 3/5 1-2 days Newbie friendliness 48/100

KhronosGroup/glTF-Validator#252 · 3 comments · Opened Feb 12, 2026
invalid error BUFFER_BYTE_LENGTH_MISMATCH on > 4GB files Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

KhronosGroup/glTF-Validator#244 · 2 comments · Opened Apr 3, 2025
Support for validation of extension "EXT_structural_metadata" Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

KhronosGroup/glTF-Validator#243 · 1 comment · Opened Mar 25, 2025
MacOS native ARM releases Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

KhronosGroup/glTF-Validator#242 · 1 reaction · Opened Dec 5, 2024
Include custom configuration in validation reports Open

enhancement

Difficulty 3/5 1-2 days Newbie friendliness 45/100

KhronosGroup/glTF-Validator#241 · Opened Nov 22, 2024
KHR_draco_mesh_compression not supported and thus some validation checks are not done inside draco-encoded meshes Open

Difficulty 5/5 Over a week Newbie friendliness 30/100

KhronosGroup/glTF-Validator#235 · Opened Sep 3, 2024
Improve reporting of invalid UTF-8 encoding Open

enhancement

Difficulty 3/5 1-2 days Newbie friendliness 45/100

KhronosGroup/glTF-Validator#227 · Opened Jul 1, 2024
Avoid global pollution of Function.prototype in Dart to JavaScript conversion for Node.js npm package Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

KhronosGroup/glTF-Validator#223 · Opened Jun 24, 2024
Test for invalid length normals in normal maps Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 35/100

KhronosGroup/glTF-Validator#217 · Opened May 14, 2024
Missing test for EXT_mesh_gpu_instancing Open

enhancement

Difficulty 3/5 1-2 days Newbie friendliness 42/100

KhronosGroup/glTF-Validator#214 · Opened May 1, 2024
morphTargets count in the generated report Open

enhancement

Difficulty 2/5 1-3 hours Newbie friendliness 48/100

KhronosGroup/glTF-Validator#212 · Opened Jan 5, 2024
NODE_MATRIX_DEFAULT is slightly vauge warning. Open

Difficulty 1/5 Under an hour Newbie friendliness 55/100

KhronosGroup/glTF-Validator#209 · Opened Aug 6, 2023
Upgrade to Dart 3.x Open

KhronosGroup/glTF-Validator#206 · 7 comments · 2 reactions · 1 assignee · Opened May 4, 2023
ACCESSOR_WEIGHTS_NON_NORMALIZED is no longer consistent with the specification Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

KhronosGroup/glTF-Validator#203 · Opened Mar 2, 2023
Handle reliance on 'window' object as optional Open

enhancement

Difficulty 3/5 1-2 days Newbie friendliness 35/100

KhronosGroup/glTF-Validator#201 · 2 comments · Opened Nov 7, 2022
Warn about constant animation sampler output accessor values? Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 30/100

KhronosGroup/glTF-Validator#200 · 2 comments · Opened Oct 26, 2022
About the next release Open

Difficulty 5/5 Over a week Newbie friendliness 15/100

KhronosGroup/glTF-Validator#199 · 3 comments · 1 reaction · Opened Oct 24, 2022
Support for KHR_animation_pointer Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 45/100

KhronosGroup/glTF-Validator#198 · 6 comments · Opened Oct 19, 2022
Null safety support? Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

KhronosGroup/glTF-Validator#188 · 3 comments · 1 reaction · Opened May 23, 2022
Warn on redundant property values Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 25/100

KhronosGroup/glTF-Validator#184 · 5 comments · Opened May 4, 2022
Add support for KTX textures and KHR_texture_basisu? Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 35/100

KhronosGroup/glTF-Validator#177 · 4 comments · Opened Feb 7, 2022
Content security policy - script-src: unsafe-eval Open

enhancement

Difficulty 3/5 1-2 days Newbie friendliness 35/100

KhronosGroup/glTF-Validator#175 · 1 comment · Opened Jan 6, 2022
About extensions and enum validation Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 25/100

KhronosGroup/glTF-Validator#172 · 1 comment · Opened Oct 13, 2021
Add a warning for large Data URIs Open

enhancement

Difficulty 3/5 1-2 days Newbie friendliness 25/100

KhronosGroup/glTF-Validator#169 · 1 reaction · Opened Sep 27, 2021
totalVertexCount seems misleading, based on accessors rather than on buffers Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

KhronosGroup/glTF-Validator#165 · 3 comments · Opened Jun 1, 2021
Consider warning on redundant definitions Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 35/100

KhronosGroup/glTF-Validator#163 · 4 comments · Opened May 12, 2021
Cannot validate an extension as it is not supported by the validator: 'KHR_draco_mesh_compression'. Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

KhronosGroup/glTF-Validator#161 · 3 comments · 1 reaction · Opened Apr 23, 2021
Textures without fallbacks require extensions Open

enhancement

Difficulty 3/5 1-2 days Newbie friendliness 35/100

KhronosGroup/glTF-Validator#157 · 2 comments · Opened Jan 6, 2021
Assets with required extensions should log a warning Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

KhronosGroup/glTF-Validator#151 · 7 comments · Opened Nov 20, 2020
Flag glTF "common problems" Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

KhronosGroup/glTF-Validator#147 · 13 comments · Opened Sep 23, 2020
Skin vertex weight normalization Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

KhronosGroup/glTF-Validator#144 · 5 comments · Opened Jul 16, 2020
Warn on dc:format Open

enhancement

Difficulty 3/5 1-2 days Newbie friendliness 42/100

KhronosGroup/glTF-Validator#143 · Opened Jun 25, 2020
Consider reporting max active morph targets Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 35/100

KhronosGroup/glTF-Validator#135 · 3 comments · Opened Feb 4, 2020
Release stable semver version? Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

KhronosGroup/glTF-Validator#127 · 2 comments · Opened Jan 10, 2020
Custom validators for extensions/extras Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 35/100

KhronosGroup/glTF-Validator#123 · 2 comments · 2 reactions · Opened Oct 18, 2019
Add object counts and sizes to report Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 35/100

KhronosGroup/glTF-Validator#120 · 4 comments · Opened Sep 17, 2019
Typescript declaration file for API Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 25/100

KhronosGroup/glTF-Validator#114 · 9 comments · 5 reactions · Opened Mar 20, 2019
Add compatibility with npm 2FA Open

infrastructure

Difficulty 3/5 1-2 days Newbie friendliness 35/100

KhronosGroup/glTF-Validator#98 · 2 comments · Opened Aug 26, 2018
Design a public API for native apps Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

KhronosGroup/glTF-Validator#86 · 2 comments · 2 reactions · Opened Apr 28, 2018
Live drag and drop gltf-validator using branch 2.0.0-dev.1.8 Open

Difficulty 2/5 1-3 hours Newbie friendliness 35/100

KhronosGroup/glTF-Validator#76 · 5 comments · Opened Mar 26, 2018
Updated versions aren't available to pub.dartlang.org Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

KhronosGroup/glTF-Validator#63 · 1 comment · Opened Jan 26, 2018
Additional restrictions on alpha modes usage Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

KhronosGroup/glTF-Validator#171 · 11 comments · Opened Nov 28, 2017
Errors beget more errors Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 35/100

KhronosGroup/glTF-Validator#47 · 1 comment · Opened Nov 14, 2017
Enhance validation report with specifics about geometry issues Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 25/100

KhronosGroup/glTF-Validator#35 · 3 comments · Opened Nov 6, 2017
Formalize expected numerical thresholds Open

help wanted question

Difficulty 5/5 Over a week Newbie friendliness 20/100

KhronosGroup/glTF-Validator#33 · 16 comments · Opened Nov 6, 2017
Fold similar issues Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 35/100

KhronosGroup/glTF-Validator#29 · 15 comments · 1 reaction · Opened Oct 17, 2017
any plans for gcc? Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

KhronosGroup/glTF-Validator#22 · 1 comment · Opened Sep 13, 2017
Images data validation Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 35/100

KhronosGroup/glTF-Validator#21 · 5 comments · Opened Sep 12, 2017
Animation data validation Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 25/100

KhronosGroup/glTF-Validator#20 · 4 comments · 2 reactions · Opened Sep 12, 2017

KhronosGroup/glTF-Validator

Get new issues in your inbox