Reviewed by the Softwares.com Editorial Team · Last updated June 2026 · How we rate
Key facts
- Vendor
- HumanSignal
- Pricing
- Open source — Free
- Free tier
- Yes
- Platforms
- Self Hosted, Web, Api
- Best for
- Ml Teams, Developers
- Editor rating
- 4.4 / 5
- Founded
- 2019
- Headquarters
- San Francisco, CA, USA
What is Label Studio?
Label Studio is a ai machine learning tool from HumanSignal. Label Studio is an open-source data labeling tool from HumanSignal that supports text, image, audio, and multimodal annotation.
Label Studio uses open source pricing and offers a free tier you can start on without a credit card. Free.
It's best suited to ml-teams, developers and runs on Self Hosted, Web, Api.
Standout strengths include open source and free, multimodal annotation, flexible labeling configs. Worth weighing: enterprise features paid.
Label Studio pricing
Pros
- Open source and free
- Multimodal annotation
- Flexible labeling configs
Cons
- Enterprise features paid
Label Studio vs alternatives
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Frequently asked questions
What is Label Studio?
Label Studio is an open-source data labeling tool from HumanSignal that supports text, image, audio, and multimodal annotation.
How much does Label Studio cost?
Label Studio is open-source-priced. It has a free tier.
Does Label Studio have a free trial?
Label Studio offers a free tier rather than a time-limited trial.
What platforms does Label Studio support?
Label Studio is available on Self Hosted, Web, Api.