Curate better data,
build better models
with FiftyOne
Voxel51 is the company behind FiftyOne, the open source toolkit that enables you to build better computer vision workflows by improving the quality of your datasets and delivering insights about your models.
Does your team need to securely collaborate on datasets in the cloud? Schedule a FiftyOne Teams workshop.
Trusted by tens of thousands of engineers and their forward-looking companies














With FiftyOne, you can...

Visualize your data
Explore, search, and slice your datasets. Quickly find the samples and labels that match your criteria.
Curate high quality datasets
Use FiftyOne’s tight integrations with public datasets like COCO, Open Images, and ActivityNet, or create your own datasets from scratch.


Train better models
Data quality is a key limiting factor on model performance. Use FiftyOne to identify, visualize, and correct your model’s failure modes.
Find mistakes
Annotation mistakes lead to bad models, but finding mistakes by hand isn’t scalable. FiftyOne helps automatically find and correct label mistakes so you can curate higher quality datasets.


Use the Brain
Aggregate performance metrics and manual debugging don’t scale. Use the FiftyOne Brain to identify edge cases, mine new samples for training, and much more.
Learn how to use FiftyOne Brain’s machine learning to improve your workflows >
Get to production faster

Open Source FiftyOne
FiftyOne is the leading open source tool for building high-quality datasets and computer vision models. Get started in minutes!


FiftyOne Teams
FiftyOne is trusted by leading dataset providers

COCO
The COCO team recommends FiftyOne for downloading, visualizing, and evaluating the most popular large-scale object detection dataset in the world.
Google's Open Images
In collaboration with Google, FiftyOne makes it easy to download, visualize, and evaluate models on one of the largest publicly available annotated image datasets in the world.


ActivityNet
We partnered with the ActivityNet team to natively support downloading, visualizing, and evaluating the leading video understanding dataset directly in FiftyOne.
1,500,000+
Installs
4,000+
GitHub stars
2,000+
Slack members
15,000+
Meetup members