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Label Studio
What it is
Label Studio is an open-source data-labeling tool for datasets containing text, images, audio, video, time series, or multimodal data. It provides a configurable labeling interface, project templates, data management, and annotation import and export. Custom machine-learning backends can supply predictions, while Enterprise adds automated active-learning loops. Integrations cover cloud storage, foundation-model APIs, computer vision, speech and audio, machine-learning frameworks, and infrastructure. Listed storage options include Amazon S3, Google Cloud Storage, Azure Blob Storage, Databricks, Redis, and local storage. APIs, a Python SDK, and webhooks support programmatic management. Label Studio can be installed on premises or in the cloud using pip, Docker, Ubuntu, source, or Anaconda. Its security documentation describes TLS for application-component interactions, HTTPS, and secured cookies. Enterprise is described as SOC 2 and HIPAA compliant and supports cloud or on-prem deployments, SSO, and SCIM 2.0. Community Edition is free. Starter Cloud costs $99 a month, with each additional user at $49 a month; Enterprise pricing is custom.
For and against
For
- Labels text, images, audio, video, and time series.
- Offers APIs, a Python SDK, and webhooks.
- Can be installed on premises or in the cloud.
- Community Edition is free.
Against
- Starter Cloud costs $99 a month.
- Each additional Starter Cloud user costs $49 a month.
- Enterprise pricing is custom.
- Community support is through Slack and GitHub issues.
The verdict
Label Studio combines configurable annotation workflows with integrations and programmatic access. Compare the free Community Edition’s support route with the hosted and Enterprise offerings if you need a dedicated support channel or enterprise controls.
Who it suits
It suits teams labeling varied dataset types or connecting labeling workflows to machine-learning backends. Community users can use Slack and GitHub issues, while paid offerings list support portals or priority support with response-time SLAs.
Plans and prices
Community Edition
open-source edition · self-hosted deployment
Read 15 Oct 2026 · humansignal.com
Starter Cloud
up to 12 users · hosted service · support portal · RBAC
Read 15 Oct 2026 · humansignal.com
Enterprise
cloud or on-premises · SSO with SAML or LDAP · enhanced quality workflows and analytics · SOC2 and HIPAA compliant cloud or on-premises
Read 15 Oct 2026 · humansignal.com
On the record
- APIs
- The platform provides APIs, a Python SDK, and webhooks for programmatic management and integration.labelstud.io · read 29 Sep 2026
- Audio features
- Audio workflows include transcription, waveform or spectrogram annotation, speaker diarization and emotion recognition.labelstud.io · read 15 Oct 2026
- Community scale
- HumanSignal reports more than 250,000 Label Studio users, millions of labeled samples and more than 20,000 GitHub stars.humansignal.com · read 15 Oct 2026
- Company headquarters and size
- LinkedIn lists HumanSignal headquarters in San Francisco, California and company size of 51–200 employees.linkedin.com · read 15 Oct 2026
- Company legal name
- Crunchbase identifies the legal entity as HumanSignal, Inc., also known as Heartex and Label Studio.crunchbase.com · read 15 Oct 2026
- Data handling
- Input media can remain in external storage and be delivered through presigned URLs, while project settings and annotations are stored in the internal database or configured external stores.labelstud.io · read 15 Oct 2026
- Data types
- The editions support labeling text, images, audio, video, time series data, and multimodal data.labelstud.io · read 29 Sep 2026
- Deployment
- Label Studio can be installed on premises or in the cloud using pip, Docker, Ubuntu, source, or Anaconda.labelstud.io · read 29 Sep 2026
- Documentation depth
- The documentation includes installation, Kubernetes and air-gapped deployment, storage, API, Python SDK, webhooks, frontend extension and troubleshooting sections.labelstud.io · read 15 Oct 2026
- Enterprise compliance
- The Enterprise offering is described as SOC 2 and HIPAA compliant and is available in cloud or on-prem deployments.humansignal.com · read 29 Sep 2026
- Enterprise identity
- Enterprise supports single sign-on with SAML or LDAP, and the security page also describes SCIM 2.0 support.humansignal.com · read 29 Sep 2026
- Free trial
- The Enterprise product is available through a free trial, and the pricing page offers a Starter free trial.humansignal.com · read 29 Sep 2026
- Funding
- HumanSignal says it has raised $30 million from Redpoint Ventures, Unusual Ventures, Bow Capital and Swift Ventures.humansignal.com · read 15 Oct 2026
- GetApp review sentiment
- GetApp reports that 100% of its two Label Studio Enterprise reviews are positive.getapp.com · read 15 Oct 2026
- Image classification
- The platform supports putting images into categories for image-classification projects.labelstud.io · read 15 Oct 2026
- Integrations
- The integrations directory lists cloud storage, foundation model APIs, computer vision, speech and audio, ML frameworks, and infrastructure integrations.labelstud.io · read 29 Sep 2026
- Labeling tools
- The platform provides a configurable labeling interface, project templates, data management, and annotation import and export.labelstud.io · read 29 Sep 2026
- License
- The public Label Studio repository is released under the Apache-2.0 license.github.com · read 15 Oct 2026
