Compare the Top Data Annotation Tools in India as of April 2026

What are Data Annotation Tools in India?

Data annotation tools are software platforms used to label and tag data such as images, text, audio, and video to train machine learning and AI models. They enable teams to create structured datasets by applying classifications, bounding boxes, segmentation masks, transcripts, or metadata to raw data. The tools often include collaboration features, quality control workflows, and versioning to ensure labeling accuracy and consistency. Many data annotation platforms support automation through AI-assisted labeling to accelerate large-scale dataset creation. By transforming unstructured data into machine-readable formats, data annotation tools play a critical role in developing accurate and reliable AI systems. Compare and read user reviews of the best Data Annotation tools in India currently available using the table below. This list is updated regularly.

  • 1
    Vertex AI
    Data Annotation in Vertex AI is essential for preparing datasets that are used to train machine learning models, ensuring that the data is accurately labeled and categorized. The platform provides both manual and automated annotation tools that can handle large volumes of data, which is critical for training accurate and reliable models. Proper annotation is crucial for tasks such as image recognition, text classification, and sentiment analysis, as it directly impacts model performance. New customers receive $300 in free credits to explore the data annotation services and streamline their dataset preparation. By using these tools, businesses can improve the quality of their machine learning models, leading to better AI outcomes.
    Starting Price: Free ($300 in free credits)
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  • 2
    OORT DataHub

    OORT DataHub

    OORT DataHub

    Data Collection and Labeling for AI Innovation. Transform your AI development with our decentralized platform that connects you to worldwide data contributors. We combine global crowdsourcing with blockchain verification to deliver diverse, traceable datasets. Global Network: Ensure AI models are trained on data that reflects diverse perspectives, reducing bias, and enhancing inclusivity. Distributed and Transparent: Every piece of data is timestamped for provenance stored securely stored in the OORT cloud , and verified for integrity, creating a trustless ecosystem. Ethical and Responsible AI Development: Ensure contributors retain autonomy with data ownership while making their data available for AI innovation in a transparent, fair, and secure environment Quality Assured: Human verification ensures data meets rigorous standards Access diverse data at scale. Verify data integrity. Get human-validated datasets for AI. Reduce costs while maintaining quality. Scale globally.
  • 3
    Clarifai

    Clarifai

    Clarifai

    Clarifai is a leading AI platform for modeling image, video, text and audio data at scale. Our platform combines computer vision, natural language processing and audio recognition as building blocks for developing better, faster and stronger AI. We help our customers create innovative solutions for visual search, content moderation, aerial surveillance, visual inspection, intelligent document analysis, and more. The platform comes with the broadest repository of pre-trained, out-of-the-box AI models built with millions of inputs and context. Our models give you a head start; extending your own custom AI models. Clarifai Community builds upon this and offers 1000s of pre-trained models and workflows from Clarifai and other leading AI builders. Users can build and share models with other community members. Founded in 2013 by Matt Zeiler, Ph.D., Clarifai has been recognized by leading analysts, IDC, Forrester and Gartner, as a leading computer vision AI platform. Visit clarifai.com
    Starting Price: $0
  • 4
    Alegion

    Alegion

    Alegion

    Alegion is the data labeling solution for enterprise-grade Machine Learning. We lead the industry in streaming, high-resolution, high-density video annotation, delivering accurately-annotated, model-ready data to train and validate ML models. Alegion provides both the platform and workforce to operate with quality at scale, processing structured and unstructured data including video, image, audio, and text. Our ML powered platform speeds up task completion by as much as 70%, including classless object tracking and single click smart polygon generation. Segmentation options include Keypoint, Bounding Box, Polyline, & Polygon segmentation, for image and video. Semantic Segmentation tools deliver seamless entity boundaries with pixel perfect accuracy. NLP and NER capabilities support text and audio classification and sentiment analysis. The platform is highly configurable to support hybrid use cases. Available via SaaS (Alegion Control), Managed Platform, and Managed Labeling Services.
    Starting Price: $5000
  • 5
    Keymakr

    Keymakr

    Keymakr

    Keymakr provides image and video data annotation, along with data creation, collection, and validation services for AI and machine learning computer vision projects of any scale. The company’s core expertise lies in delivering high-quality training data for multimodal and embodied AI systems, and supporting human-verified annotation and LLM ground-truth validation of model outputs. Keymakr's motto, "Human teaching for machine learning," reflects its commitment to the human-in-the-loop approach. This is why the company maintains an in-house team of over 600 highly skilled annotators. Keymakr's goal is to deliver custom datasets that enhance the accuracy and efficiency of ML systems. To create precise datasets, Keymakr developed Keylabs.ai, a powerful enterprise-grade annotation platform that supports all annotation types. Keymakr also follows strict data security and compliance standards, holds ISO 9001 and ISO 27001 certifications, and maintains GDPR and HIPAA compliance.
    Starting Price: $7/hour
  • 6
    Artificio

    Artificio

    Artificio Products Inc

    Artificio offers intelligent AI Agents designed to automate and optimize complex document workflows without coding. These specialized agents handle different stages of the document lifecycle, from intake and data extraction to workflow orchestration and communication management. The AI Agents continuously learn and collaborate to improve accuracy and efficiency, making autonomous decisions on document routing and validation. Artificio’s platform integrates seamlessly with existing business systems and scales effortlessly to handle large volumes of documents. The solution is highly secure and compliant, meeting standards like ISO 27001, SOC 2, GDPR, and HIPAA. Businesses benefit from reduced manual data entry, faster processing times, and improved data accuracy.
    Starting Price: $49/month
  • 7
    LinkedAI

    LinkedAI

    LinkedAi

    We label your data with the higher quality standards to fulfill the needs of the most complex AI projects, using our proprietary labeling platform. Now you can get back to creating the products your customers love. We provide an end-to-end solution for image annotation with fast labeling tools, synthetic data generation, data management, automation features and annotation services on-demand with integrated tooling to accelerate and finish computer vision projects. When every pixel matters, you need accurate, AI-powered intuitive image annotation tools to support your specific use case, including instances, attributes and much more. Our in-house highly trained data labelers are able to deal with any data challenge. As your data labeling needs grow over time, you can count on us to scale the workforce necessary to meet your goals, and in contrast to crowdsourcing platforms your data quality will not suffer.
  • 8
    Amazon SageMaker Ground Truth
    Amazon SageMaker allows you to identify raw data such as images, text files, and videos; add informative labels and generate labeled synthetic data to create high-quality training data sets for your machine learning (ML) models. SageMaker offers two options, Amazon SageMaker Ground Truth Plus and Amazon SageMaker Ground Truth, which give you the flexibility to use an expert workforce to create and manage data labeling workflows on your behalf or manage your own data labeling workflows. data labeling. If you want the flexibility to create and manage your own personal and data labeling workflows, you can use SageMaker Ground Truth. SageMaker Ground Truth is a data labeling service that makes data labeling easy and gives you the option of using human annotators via Amazon Mechanical Turk, third-party providers, or your own private staff.
    Starting Price: $0.08 per month
  • 9
    Appen

    Appen

    Appen

    The Appen platform combines human intelligence from over one million people all over the world with cutting-edge models to create the highest-quality training data for your ML projects. Upload your data to our platform and we provide the annotations, judgments, and labels you need to create accurate ground truth for your models. High-quality data annotation is key for training any AI/ML model successfully. After all, this is how your model learns what judgments it should be making. Our platform combines human intelligence at scale with cutting-edge models to annotate all sorts of raw data, from text, to video, to images, to audio, to create the accurate ground truth needed for your models. Create and launch data annotation jobs easily through our plug and play graphical user interface, or programmatically through our API.
  • 10
    Shaip

    Shaip

    Shaip

    Shaip offers end-to-end generative AI services, specializing in high-quality data collection and annotation across multiple data types including text, audio, images, and video. The platform sources and curates diverse datasets from over 60 countries, supporting AI and machine learning projects globally. Shaip provides precise data labeling services with domain experts ensuring accuracy in tasks like image segmentation and object detection. It also focuses on healthcare data, delivering vast repositories of physician audio, electronic health records, and medical images for AI training. With multilingual audio datasets covering 60+ languages and dialects, Shaip enhances conversational AI development. The company ensures data privacy through de-identification services, protecting sensitive information while maintaining data utility.
  • 11
    Macgence

    Macgence

    Macgence

    Through projects spanning different data types, industries, and geographies globally, we have made significant progress in serving the AI ​​value chain. Furthermore, our diverse experiences enable us to effectively address unique challenges and optimize solutions across different sectors. The high-precision custom data source for your specific model needs from around the world, ensuring strict compliance with GDPR, SOC 2, and ISO standards. Experience data annotation and labeling with approximately 95% accuracy across all data types, ensuring flawless model performance. Determine your model's initial performance to get an unbiased expert opinion on critical model performance measures such as bias, duplication, and ground truth response in the early stages. Validate your model output by leveraging our expert validation team to optimize and improve the accuracy of your model.
  • 12
    Tasq.ai

    Tasq.ai

    Tasq.ai

    Tasq.ai delivers a powerful, no-code platform for building hybrid AI workflows that combine state-of-the-art machine learning with global, decentralized human guidance, ensuring unmatched scalability, control, and precision. It enables teams to configure AI pipelines visually, breaking tasks into micro-workflows that layer automated inference and quality-assured human review. This decoupled orchestration supports diverse use cases across text, computer vision, audio, video, and structured data, with rapid deployment, adaptive sampling, and consensus-based validation built in. Key capabilities include global deployment of highly screened contributors (“Tasqers”) for unbiased, high-accuracy annotations; granular task routing and judgment aggregation to meet confidence thresholds; and seamless integration into ML ops pipelines via drag-and-drop customization.
  • 13
    DataForce

    DataForce

    DataForce

    DataForce is a global data collection and labeling platform that combines technology with a diverse network of over one million data contributors, scientists, and engineers. It offers companies in technology, automotive, life sciences, and other industries secure and reliable AI services for exceptional structured data and customer experiences. As part of the TransPerfect family of companies, DataForce provides a range of services, including data collection, data annotation, data relevance and rating, chatbot localization, content moderation, transcription, user studies, generative AI training, business process outsourcing, and bias mitigation. The DataForce platform is a proprietary solution developed in-house by TransPerfect for various types of data-oriented projects with a focus on AI and machine learning applications. Its capabilities include data annotation, data collection, and community management, supporting and improving relevance models, accuracy, and recall.
  • 14
    Innodata

    Innodata

    Innodata

    We Make Data for the World's Most Valuable Companies Innodata solves your toughest data engineering challenges using artificial intelligence and human expertise. Innodata provides the services and solutions you need to harness digital data at scale and drive digital disruption in your industry. We securely and efficiently collect & label your most complex and sensitive data, delivering near-100% accurate ground truth for AI and ML models. Our easy-to-use API ingests your unstructured data (such as contracts and medical records) and generates normalized, schema-compliant structured XML for your downstream applications and analytics. We ensure that your mission-critical databases are accurate and always up-to-date.
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