# Data Labeling

Ranked by the Vioscale composite score: a confidence-weighted blend of independent signals, not user reviews.

| # | Software | Score | Confidence | Vendor |
|--:|---|--:|---|---|
| 1 | [Scale AI](https://www.vioscale.ai/software/scale-ai) | 76.1 | 45% (low) | - |
| 2 | [CVAT](https://www.vioscale.ai/software/cvat) | 69.4 | 26% (low) | - |
| 3 | [iMerit](https://www.vioscale.ai/software/imerit) | 68.1 | 14% (low) | - |
| 4 | [Appen](https://www.vioscale.ai/software/appen) | 57.6 | 13% (low) | - |
| 5 | [Kili Technology](https://www.vioscale.ai/software/kili-technology) | 56.3 | 55% (medium) | - |
| 6 | [Amazon SageMaker Ground Truth](https://www.vioscale.ai/software/amazon-sagemaker-ground-truth) | 54.5 | 54% (medium) | - |
| 7 | [Labelbox](https://www.vioscale.ai/software/labelbox) | 52.9 | 21% (low) | - |
| 8 | [Dataloop](https://www.vioscale.ai/software/dataloop) | 50.5 | 12% (low) | - |
| 9 | [Supervisely](https://www.vioscale.ai/software/supervisely) | 44.2 | 20% (low) | - |
| 10 | [Label Studio](https://www.vioscale.ai/software/label-studio) | 43.6 | 25% (low) | - |
| 11 | [Toloka](https://www.vioscale.ai/software/toloka) | 42.5 | 41% (low) | - |
| 12 | [CloudFactory](https://www.vioscale.ai/software/cloudfactory) | 42.1 | 32% (low) | - |
| 13 | [Datasaur](https://www.vioscale.ai/software/datasaur) | 29.2 | 41% (low) | - |
| 14 | [SuperAnnotate](https://www.vioscale.ai/software/superannotate) | 28.7 | 30% (low) | - |
| 15 | [Doccano](https://www.vioscale.ai/software/doccano) | 28.1 | 28% (low) | - |
| 16 | [V7 Labs](https://www.vioscale.ai/software/v7-labs) | 26.8 | 47% (low) | - |
| 17 | [Encord](https://www.vioscale.ai/software/encord) | 23.9 | 30% (low) | - |
| 18 | [Prodigy](https://www.vioscale.ai/software/prodigy) | 5.6 | 15% (low) | - |

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*Source: Vioscale (https://www.vioscale.ai/categories/data-labeling).*