> For the complete documentation index, see [llms.txt](https://docs.graviti.cn/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.graviti.cn/apps/groundtruth-tools.md).

# GroundTruth Tools

GroundTruth Tools是一款面向机器学习数据准备的协同数据标注工具，支持多种常用标注类型以及多人协同标注。无需部署即可快速开始标注任务，适用于小团队快速生产冷启动所需数据。

GroundTruth Tools支持2D矩形、分类、2D多边形、2D折线、2D关键点图片标注类型并且同时支持语音分类标注。具体标注类型说明如下：

![](/files/-Mj8V0MudNUFjKM4umJd)

具体图片标注步骤请查看:

{% content-ref url="/pages/-MS2Mr01-38c0KvOLVds" %}
[图片标注](/apps/groundtruth-tools/image-labeling.md)
{% endcontent-ref %}

具体语音分类步骤请查看:

{% content-ref url="/pages/-MidYyvfIcep6W0A7qa-" %}
[语音分类](/apps/groundtruth-tools/audio-labeling.md)
{% endcontent-ref %}