Formats
VoTT JSON
Object Detection
IMPORTEXPORT
FEATURED
Object Detection

VoTT JSON

The native format of Microsoft's Visual Object Tagging Tool (VoTT)

Overview

VoTT (Visual Object Tagging Tool) is a popular open source annotation tool released my Microsoft. It lets you easily label image assets for use with object detection models. We have a full VoTT tutorial that shows the process of creating labels for your custom dataset.

The native format of VoTT is a proprietary JSON file that is not supported by any known models. Getting your VoTT-labeled dataset ready for training is where Roboflow comes in. Just import your images and annotations and select the format you want to convert it to and you'll be on your way to training a model in no time.

Format Description

Below, learn the structure of VoTT JSON.

vott.json
{
    "asset": {
        "format": "jpg",
        "id": "0a2ac9053d4d842653d3ff9f988421a6",
        "name": "img0001.jpg",
        "path": "file:D:/HardHats/img0001.jpg",
        "size": {
            "width": 612,
            "height": 408
        },
        "state": 2,
        "type": 1
    },
    "regions": [
        {
            "id": "XEhNEKjZT",
            "type": "RECTANGLE",
            "tags": [
                "helmet"
            ],
            "boundingBox": {
                "height": 204,
                "width": 505.5652173913043,
                "left": 32.06688963210702,
                "top": 143.9598662207358
            },
            "points": [
                {
                    "x": 32.06688963210702,
                    "y": 143.9598662207358
                },
                {
                    "x": 537.6321070234113,
                    "y": 143.9598662207358
                },
                {
                    "x": 537.6321070234113,
                    "y": 347.95986622073576
                },
                {
                    "x": 32.06688963210702,
                    "y": 347.95986622073576
                }
            ]
        }
    ],
    "version": "2.1.0"
}

Split and Merge Datasets

With Roboflow supervision, an open source Python package with utilities for completing computer vision tasks, you can merge and split detections in VoTT JSON. Read our dedicated guides to learn how to merge and split VoTT JSON detections.

Split detections in VoTT JSON

No items found.

Merge detections in VoTT JSON

No items found.

Supported Models

Below, see model architectures that require data in the VoTT JSON format when training a new model.

On each page below, you can find links to our guides that show how to plot predictions from the model, and complete other common tasks like detecting small objects with the model.

No items found.

On this page

Convert Data from VoTT JSON

Convert to...

Convert Data to VoTT JSON

Convert from...
Formats
VoTT JSON

What is VoTT JSON?

VoTT (Visual Object Tagging Tool) is a popular open source annotation tool released my Microsoft. It lets you easily label image assets for use with object detection models. We have a full VoTT tutorial that shows the process of creating labels for your custom dataset.

The native format of VoTT is a proprietary JSON file that is not supported by any known models. Getting your VoTT-labeled dataset ready for training is where Roboflow comes in. Just import your images and annotations and select the format you want to convert it to and you'll be on your way to training a model in no time.

Deploy Models with Ease on Roboflow

With Roboflow, you can deploy a computer vision model without having to build your own infrastructure.

Get Started Today

VoTT JSON

Below, we show how to convert data to and from

VoTT JSON

. We also list popular models that use the

VoTT JSON

data format. Our conversion tools are free to use.

CONVERT To
CONVERT From
EXAMPLE

Convert Data to VoTT JSON

Use Roboflow to convert
VoTT JSON
to the following formats.

Roboflow is a trusted solution for converting and managing your data. Today, over 250,000 datasets are managed on Roboflow, comprised of 100 million labeled and annotated images.

With Roboflow, you get a solution with:
‍

Free data conversion

SOC II Type 2 Compliant

Trusted by 250,000+ developers

VoTT JSON
 to 
YOLOv8 PyTorch TXT
VoTT JSON
 to 
YOLOv8 Oriented Bounding Boxes
VoTT JSON
 to 
PaliGemma JSONL
VoTT JSON
 to 
YOLOv10 PyTorch TXT
VoTT JSON
 to 
YOLOv9 PyTorch TXT
VoTT JSON
 to 
Florence-2
VoTT JSON
 to 
YOLOv11 PyTorch TXT
VoTT JSON
 to 
OpenAI GPT-4o Object Detection JSONL
VoTT JSON
 to 
COCO Run-Length Encoding (RLE)
VoTT JSON
 to 
Tensorflow TFRecord
VoTT JSON
 to 
COCO JSON
VoTT JSON
 to 
Pascal VOC XML
VoTT JSON
 to 
YOLO Darknet TXT
VoTT JSON
 to 
CreateML JSON
VoTT JSON
 to 
YOLOv7 PyTorch TXT
VoTT JSON
 to 
YOLOv5 PyTorch TXT
VoTT JSON
 to 
Sagemaker GroundTruth Manifest
VoTT JSON
 to 
Google Cloud AutoML Vision CSV
VoTT JSON
 to 
meituan/yolov6
VoTT JSON
 to 
Scaled-YOLOv4 TXT
VoTT JSON
 to 
YOLO Keras TXT
VoTT JSON
 to 
OpenAI CLIP Classification
VoTT JSON
 to 
RetinaNet Keras CSV
VoTT JSON
 to 
Tensorflow Object Detection CSV
VoTT JSON
 to 
Multiclass Classification CSV
VoTT JSON
 to 
YOLOv4 PyTorch TXT
VoTT JSON
 to 
YOLOv5 Oriented Bounding Boxes

Convert Data from VoTT JSON

Use Roboflow to convert the following formats to
VoTT JSON
format.

Roboflow is a trusted solution for converting and managing your data. Today, over 250,000 datasets are managed on Roboflow, comprised of 100 million labeled and annotated images.

With Roboflow, you get:
‍

Free data conversion

SOC II Type 1 Compliant

Trusted by 250,000+ developers

Roboflow is a trusted solution for converting and managing your data. Today, over 100,000 datasets are managed on Roboflow, comprised of 100 million labeled and annotated images.

Once your data is in Roboflow, just add the link from your dataset and you're ready to go. We even include the code to export to common inference formats like TFLite, ONNX, and CoreML.

Below are pre-configured models that use the
VoTT JSON
data format
.

What computer vision models use VoTT JSON?

The

No items found.

models all use the

VoTT JSON

data format.

We don't currently have models that use this annotation format.
To see our entire list of computer vision models, check out the Roboflow Model Library.
vott.json
{
    "asset": {
        "format": "jpg",
        "id": "0a2ac9053d4d842653d3ff9f988421a6",
        "name": "img0001.jpg",
        "path": "file:D:/HardHats/img0001.jpg",
        "size": {
            "width": 612,
            "height": 408
        },
        "state": 2,
        "type": 1
    },
    "regions": [
        {
            "id": "XEhNEKjZT",
            "type": "RECTANGLE",
            "tags": [
                "helmet"
            ],
            "boundingBox": {
                "height": 204,
                "width": 505.5652173913043,
                "left": 32.06688963210702,
                "top": 143.9598662207358
            },
            "points": [
                {
                    "x": 32.06688963210702,
                    "y": 143.9598662207358
                },
                {
                    "x": 537.6321070234113,
                    "y": 143.9598662207358
                },
                {
                    "x": 537.6321070234113,
                    "y": 347.95986622073576
                },
                {
                    "x": 32.06688963210702,
                    "y": 347.95986622073576
                }
            ]
        }
    ],
    "version": "2.1.0"
}
Ready to get started?

Join over 1 million developers building with Roboflow

Try it for FreeTalk to Sales