Labelbox documentation


General FAQ

What is Labelbox?

Labelbox is the industry-leading labeling and training data management platform.

Does Labelbox only sell labeling services?

In addition to labeling services, Labelbox offers:

  • A user-friendly, customizable platform for labeling images, video, text, and geospatial data.

  • Extensive collaboration management tools.

  • Quality and performance management tools.

How do I set up a labeling project?

Once you have created a Labelbox account, see Create a project.

Do I need to be a data scientist to use Labelbox?

You do not need to be a data scientist to label data in the Labelbox application. We designed our user-friendly platform to require minimal technical knowledge and expertise such that anyone can annotate data using our out-of-the-box application. However, it may be beneficial to have someone experienced in data science on your team to help ensure that your machine learning project is successfully developed and deployed.

What kind of data can I label with Labelbox?

With our out-of-the-box labeling application, you can label the following:

  • Images

  • Videos

  • Text

  • Geospatial data

To see a list of supported file formats, see the Import data docs.

How do people use the labels they create in Labelbox?

In most cases, Labelbox is used by individuals, organizations, and companies in need of high-quality training data to develop and deploy robust machine learning models. People choose Labelbox to create training data for various applications, ranging from independent, small-scale projects to enterprise-scale applications that leverage artificial intelligence to gain a competitive edge.

Labeling workforce FAQ

Can I still use Labelbox if I already have a labeling team?

Yes. Whether your labeling team is outsourced, internal, or both, Labelbox allows your labelers to annotate data while giving you the tools to measure their label quality and performance. If needed, you have the ability to combine the efforts of your internal team and an outsourced labeling workforce on the same projects.

Can I outsource a team to label my data?

If you would like to outsource a workforce to label your data in Labelbox, you have two options:

  • Use our Labelbox workforce when you sign up for a Pro or Enterprise account.

  • Find a third party workforce and teach them how to use Labelbox.

Support FAQ

Does Labelbox provide support?

Labelbox provides support to all Labelbox users. We have a team of dedicated machine learning support engineers based in San Francisco from 9 am - 5 pm PST. However, you are welcome to send us a support request outside of these hours and one of our support engineers will respond at their earliest availability. Enterprise accounts will receive a dedicated account manager for additional support as included in the contract. The best way to reach our support team is via the chat feature at the bottom right corner of the web page. You can also email us at

Quality assurance FAQ

Can I compare model-assisted predictions against human-made labels?

With Labelbox you can connect your machine learning model and compare your model’s performance against your team of labelers. To learn how to import model predictions to your project, see Model-assisted labeling.

Technical FAQ

Does Labelbox have an API?

Yes. All of the functionality offered in our application interface can also be programmatically configured with our GraphQL API. Access to the Labelbox API is included in the Pro and Enterprise tiers.

Labelbox also offers a Python SDK for those who wish to use Labelbox programmatically using Python instead of by writing GraphQL queries and mutations.

How do I create an API key?

API Keys can only be created by Organization administrators. To read our documentation for setting up API keys, see our GraphQL API docs.

Importing & exporting data FAQ

Which label export formats does Labelbox support?

Your labeled data can be exported in JSON or CSV format, which should allow you to import it into any standard machine learning framework. Labelbox does not offer any native export functionality for COCO or PASCAL VOC.

Can I import images from my smartphone?

Notably (but not exclusively), photos taken with smartphones have orientation stored as an EXIF tag in the image’s metadata. However, Labelbox does not read this EXIF tag and will render the image in its original, unrotated state. You may upload photos from a smartphone if you use an external image editor to save your image in the correct orientation.

Privacy & security FAQ

How is data secured when outsourcing to the workforce?

The outsourced labeling team connects directly to a Labelbox project to label and review, but cannot access the data (including training data) directly. In addition, the workforce providers are Labelbox consultants bound by strict confidentiality provisions regarding your data.

What is the security practice of the labeling workforce?

Our Labelbox annotation services delivery center is SOC2 Type1 certified. All the work is done in a supervised environment by annotators who are employed by Labelbox’s labeling services consulting company. We don’t crowdsource and don’t work with any freelancers. We also don’t allow any remote logins from home.

In order to keep up with customer needs during the COVID-19 quarantine, some of our workforce teams have been allowed to work remotely. However, part of our workforce is still working from its premises.