Best Data Labeling Software - Page 7

How Many Data Labeling Software Products Does G2 Track?

Total Products under this Category: 136

Category Stats (Sep 2026)

  • Average Rating: 4.49/5 The average rating of products in this category, based on all submitted ratings
  • Top Trending Product: FiftyOne (+1.01%) - Among all products in this category, FiftyOne recorded the largest rating increase compared to last month

Last updated: September 01, 2026

How Does G2 Rank Data Labeling Software Products?

Why You Can Trust G2's Software Rankings:

  • 30 Analysts and Data Experts
  • 1,900+ Authentic Reviews
  • 136+ Products
  • Unbiased Rankings

G2's software rankings are built on verified user reviews, rigorous moderation, and a consistent research methodology maintained by a team of analysts and data experts. Each product is measured using the same transparent criteria, with no paid placement or vendor influence. While reviews reflect real user experiences, which can be subjective, they offer valuable insight into how software performs in the hands of professionals. Together, these inputs power the G2 Score, a standardized way to compare tools within every category.

G2 Grid® for Data Labeling Software

G2 Grid® for Data Labeling Software plotting products by satisfaction and market presence

Highlighted products: SuperAnnotate, Roboflow, Encord, Datasaur, CVAT, Amazon Sagemaker Ground Truth, Labelbox, and V7 Darwin.

Underlying data: [Grid® JSON](https://www.g2.com/categories/data-labeling/grids.json?focus%5B%5D=superannotate&focus%5B%5D=roboflow&focus%5B%5D=encord&focus%5B%5D=datasaur&focus%5B%5D=cvat&focus%5B%5D=amazon-sagemaker-ground-truth&focus%5B%5D=labelbox&focus%5B%5D=v7-darwin)

KawniX

KawniX is an AI-powered platform specializing in geospatial data annotation and satellite image processing. It enables businesses and organizations to transform raw satellite imagery into actionable insights, facilitating informed decision-making across various industries. Key Features and Functionality: - Automated Label Suggestions: Utilizes artificial intelligence to propose boundaries, objects, or features based on prior annotations, significantly reducing the time required for large dataset labeling. - Support for Various Annotation Types: Offers flexibility with bounding boxes, polygons, segmentation masks, and classification tags to meet diverse project needs. - Cloudless Satellite Imagery Access: Provides clear, cloud-free satellite images updated every five days, ensuring annotations are based on current and accurate data. - User-Friendly Interface: Operates directly in the browser, allowing users to access and analyze spatial datasets through simple natural language queries. - Seamless Workflow Integration: Facilitates collaboration across departments, enabling teams to annotate and analyze images efficiently. Primary Value and Solutions Provided: KawniX addresses the challenge of converting complex satellite imagery into usable data by combining AI-driven automation with human accuracy. This approach accelerates the annotation process, enhances data precision, and supports various applications, including: - Agriculture: Monitoring crop health, irrigation, and soil conditions through annotated satellite images. - Urban Planning: Mapping infrastructure and modeling traffic flow with accurately labeled geospatial data. - Environmental Protection: Tracking land use and monitoring ecosystems to prevent illegal activities. - Disaster Management: Assessing damage and coordinating recovery efforts using annotated imagery. By streamlining the geospatial data annotation process, KawniX empowers organizations to make data-driven decisions with confidence and efficiency.

Who Is the Company Behind KawniX?

Kognic

Kognic is the leader in autonomy data annotation, delivering the world's most productive platform for multi-modal sensor-fusion data. Purpose-built for cameras, LiDAR, radar, and temporal streams, Kognic helps autonomy teams accelerate development with premium quality and high-throughput workflows. Our unique advantage combines three elements: People — domain experts and a scalable global workforce operating under strict ethical standards; Platform — designed to minimize human effort, integrate automation, and optimize productivity; Processes — proven workflows for quality assurance, scale, and predictability. Together, this makes Kognic the price leader in autonomy data annotation — no one delivers more annotated autonomy data per dollar. Trusted by enterprise customers across the U.S., Europe, China, and Japan, Kognic has delivered over 100 million annotations with full ISO, SOC2, and TISAX certifications. We support flexible deployment models — cloud (SaaS), on-premise, or hybrid — and seamlessly integrate with customer ML pipelines, cloud storage (AWS, Azure, GCP), and frameworks like PyTorch and TensorFlow. From bounding boxes to trajectory evaluation, intent judging, and clip curation, Kognic adapts workflows to meet emerging autonomy needs. We evolve with the frontier of Physical AI, ensuring customers get the most annotated autonomy data for their budget.

Who Is the Company Behind Kognic?

  • Seller: Kognic
  • Year Founded: 2018
  • HQ Location: Gothenburg, SE
  • LinkedIn® Page: www.linkedin.com
    107 employees on LinkedIn®

Label AI's Aria

Aria, developed by Label AI, is an advanced data annotation platform that integrates AI-driven automation with client-in-the-loop customization. This combination significantly enhances the speed, scalability, and accuracy of processing perception data, all while reducing traditional annotation costs. Key Features and Functionality: - AI-Powered Annotation: Utilizes cutting-edge AI algorithms to automate or semi-automate labeling tasks, improving both the speed and precision of data annotation. - Client in the Loop: Allows clients to actively participate in the annotation process, ensuring outcomes are personalized and aligned with specific project objectives, fostering collaboration and customization. - Visual Project Control: Provides tools to visualize the data production process, moving away from opaque operations. Features include one-click workflow positioning and real-time online acceptance. - Bidirectional Data Output Capability: Supports JSON-MASK bi-directional data export in panoramic semantics split mode, enabling structured data output in two different formats from a single annotation effort. - Full Data Format Adaptation: Supports a wide range of data formats, including images (JPEG, GIF, PNG, BMP), point cloud data (PCD, BIN, PLY), and videos. Export capabilities include formats such as JSON, XML, CSV, and XLS. - Customizable Workflows: Allows for the personalization of task parameters to align annotation tasks with precise project requirements, maximizing operational efficiency. - Quality Assurance: Incorporates built-in quality control mechanisms and rigorous processes to ensure the highest standards of accuracy and relevance in the annotated data. - Varied Data Types: Supports annotation across diverse data types, including text, images, video, documents, and audio, enabling seamless handling of different data forms. Primary Value and User Solutions: Aria addresses the challenges of traditional data annotation by offering a platform that combines AI automation with client collaboration. This approach not only accelerates the annotation process but also ensures that the data produced is accurate, relevant, and tailored to specific project needs. By supporting a wide array of data formats and providing customizable workflows, Aria offers flexibility and scalability, making it an ideal solution for enterprises seeking efficient and cost-effective data annotation services.

Who Is the Company Behind Label AI's Aria?

Labelforce

Labelforce AI is a premier data labeling service provider with over a decade of experience in delivering high-quality, customized annotation solutions for artificial intelligence (AI) applications. Specializing in building fully managed data labeling teams, Labelforce AI caters to a diverse range of industries, including computer vision, generative AI, and custom solutions, ensuring that clients receive precise and scalable data annotation services tailored to their specific project requirements. Key Features and Functionality: - Fully Managed Teams: Labelforce AI handles the entire data annotation pipeline, from recruiting specialized data labelers to day-to-day management, allowing clients to focus on their core AI development tasks. - Expertise Across Domains: With a network of over 600 in-office data labeling specialists, Labelforce AI provides teams with the precise skill sets needed for unique projects, ensuring high-quality data for AI training. - Flexible Tooling: The company supports a wide range of data annotation tools, including both paid and open-source platforms, as well as custom tools, offering flexibility to integrate seamlessly into existing workflows. - Data Security: Labelforce AI maintains the highest level of data privacy and security by granting labelers access to clients' data labeling tools without directly handling the data, ensuring confidentiality and compliance. - Global Reach: Leveraging a global recruitment and payment infrastructure, Labelforce AI can hire labelers in nearly any country, providing clients with access to a diverse talent pool. Primary Value and Solutions Provided: Labelforce AI addresses the critical need for high-quality, accurately labeled data in AI model training. By offering customized, fully managed data labeling teams, the company enables clients to scale their AI initiatives efficiently without compromising on data quality. This approach ensures that AI models are trained with precise and reliable data, leading to improved performance and more accurate outcomes. Labelforce AI's commitment to flexibility, security, and expertise makes it a trusted partner for organizations seeking to enhance their AI capabilities through superior data annotation services.

Who Is the Company Behind Labelforce?

LabelFort

LabelFort is an audit-ready data annotation platform and managed annotation service from Predusk AI (Predusk Technology Pvt. Ltd., Jaipur, India), built for AI teams whose training data has to survive an audit. AI pre-labelling handles the mechanical work, structured human review catches what automation misses, and every dataset exports with its chain of custody attached. Teams can run the platform themselves, bring in a trained domain specialist team through Hire a Team, or combine both under one governance model. Key Features and Functionality: - Human control point on every workflow: Five QA workflows (single pass, maker checker, double-blind, AI review, and AI consensus), each ending in a human decision. Quality is measured through per-cohort inter-annotator agreement, not sampled. - Evidence export, not a status report: Every pre-label is versioned, and every reviewer action is logged in an immutable audit trail. A dataset exports as an evidence pack that maps to EU AI Act, HIPAA, GDPR, SOC 2, and DPDP documentation requirements. - Annotation types on one platform: Image, video, text, audio, LiDAR, DICOM, document annotation, RLHF, and synthetic data generation, supported by an annotation canvas, ontology and form builder, QA console, audit log viewer, model registry, and dataset manager. - Eight roles with separate routing, dashboards, and access checks, so a customer can name who labelled, reviewed, and approved any record. - Physical control layer for regulated projects: Annotation runs on a controlled on-premises floor in India. No phones, paper, or storage devices enter, entry and exit are logged by name against the project a person is cleared for, and no regulated work is done remotely. - Independent ownership: LabelFort is not owned by a model lab or a competing AI developer, so customer data does not route through a company training its own models. Primary Value and Solutions Provided: LabelFort addresses a gap most annotation vendors leave open: they assert quality and security but cannot produce the record. LabelFort produces the record as a deliverable. Quality is measured per cohort, custody is logged per person and session, and the platform generates the evidence pack rather than reconstructing it at audit time. This serves healthcare and life sciences, autonomous vehicles and geospatial, public sector and defence, financial services, and robotics and embodied AI teams that must show a regulator or procurement reviewer who labelled what, under which guideline, and with what agreement score. Teams that only need low-cost volume labelling with no audit requirement will find the review depth heavier than they need.

Who Is the Company Behind LabelFort?

Learning Spiral AI

Learning Spiral AI is a trusted data annotation partner empowering AI and ML teams across the globe to build smarter, faster, and more accurate computer vision systems. With over 300+ skilled annotators and a proven track record in delivering high-quality labeled datasets, we specialize in human-in-the-loop annotation for complex visual data—ranging from images and videos to LiDAR, medical scans, satellite imagery, and more. Our mission is to streamline the data pipeline for companies working in autonomous vehicles, smart surveillance, agriculture, medical imaging, geospatial analytics, and retail AI and other fields. Whether you're training your first computer vision model or scaling to production, we adapt quickly with flexible workflows, competitive pricing, and domain-trained resources. We operate with a strong focus on: Accuracy: Every dataset goes through a strict QA process designed to exceed industry benchmarks. Tool Flexibility: We work on industry-standard tools and also integrate seamlessly with your in-house platforms. Speed & Scalability: Ramp up annotation teams quickly without compromising quality—ideal for startups and enterprises alike. Free Pilot Projects: We offer a no-commitment pilot to demonstrate our quality before scaling further. Learning Spiral AI has helped companies reduce annotation costs by up to 40%, improve model accuracy, and accelerate time-to-market by weeks. Our client-centric approach and transparent processes have made us the preferred annotation partner for AI-driven innovation. If you're looking to turn raw visual data into reliable, production-ready datasets—Learning Spiral AI is ready to collaborate.

Who Is the Company Behind Learning Spiral AI?

Lodestar

The world’s first real-time active learning data annotation platform to accelerate high-quality dataset and computer vision model creation. Label up to 10 hours of video in a single project. Lodestar is a complete management suite for developing computer vision models from video data. Our unique real-time integrated tools can help create production models 4x faster than traditional AI workflows.

Who Is the Company Behind Lodestar?

  • Seller: Lodestar
  • Year Founded: 2019
  • HQ Location: Cupertino, US
  • LinkedIn® Page: www.linkedin.com
    14 employees on LinkedIn®

Luel

Luel is an AI training data marketplace that connects enterprises with contributors to source high-quality, rights-cleared multimodal datasets essential for developing and refining AI models. By facilitating the collection and licensing of video, audio, and image data, Luel accelerates AI development while providing content creators with opportunities to monetize their media. Key Features and Functionality: - Curated Datasets: Enterprises can access a catalog of pre-collected, quality-verified datasets ready for immediate use, streamlining the AI training process. - Custom Data Collection: Organizations can request bespoke datasets tailored to specific requirements, ensuring relevance and precision in training data. - Enterprise Security: Luel employs bank-level encryption and adheres to compliance standards such as SOC 2 and GDPR, safeguarding data integrity and confidentiality. - Instant Payouts for Contributors: Content creators receive payments within 24-48 hours after approval, facilitated through platforms like Venmo or Stripe, incentivizing the provision of high-quality data. - Global Opportunities: The platform enables contributors worldwide to participate, offering flexibility and accessibility regardless of location. - User-Friendly Upload Process: A simple drag-and-drop interface with automatic quality checks and duplicate detection ensures a seamless experience for contributors. Primary Value and User Solutions: Luel addresses the critical need for diverse, high-quality training data in AI development by providing a reliable source of rights-cleared datasets. For enterprises, this means accelerated model training and deployment with data that meets stringent compliance and quality standards. For contributors, Luel offers a platform to monetize their content, turning everyday actions into income while supporting the advancement of AI technologies.

Who Is the Company Behind Luel?

  • Seller: Luel
  • Year Founded: 2025
  • HQ Location: San Francisco, US
  • LinkedIn® Page: www.linkedin.com
    3,155 employees on LinkedIn®

MD AI Annotator

MD.ai Annotator is a comprehensive platform designed to facilitate the creation of high-quality labeled datasets and the development of AI-driven clinical workflows. It enables medical professionals and researchers to efficiently annotate medical images, deploy and validate AI models, and integrate these models into clinical practice. Key Features and Functionality: - Native DICOM Support: Built to support the DICOM standard, the platform accommodates most DICOM imaging modalities. Users can create datasets through direct uploads, cloud storage connections, or via the DICOM C-STORE protocol. Additionally, it supports non-DICOM images (JPEG, PNG, TIFF) and videos (MP4, AVI, MOV) in custom patient-centric file structures. - FDA 510(k)-Cleared Viewer: The web-based DICOM viewer is FDA 510(k)-cleared, enabling clinical image interpretation, review, annotation, and reporting. It supports various modalities, standard zoom/pan/windowing, hanging protocols, multiplanar reconstruction, and measurement tools, fully integrated with annotation tools. - Scalability: The autoscaling cloud infrastructure allows seamless scaling to millions of exams, terabytes of data, and thousands of concurrent users. The user management system provides fine-grained data access control and distributed labeling task assignments. - AI-Assisted Annotation and Model Deployment: Users can deploy models and run distributed inference on their data, utilizing models for pre-annotation or AI-assisted annotation. The platform supports federated validation across multiple sites without data sharing. - Built-in AI Tools: The platform offers AI-powered mask segmentation tools for efficient annotation, as well as built-in PHI detection and de-identification tools to prevent sensitive data leakage. - Developer APIs: Flexible APIs, including a CLI tool and Python client library, enable programmatic project management and control. Primary Value and User Solutions: MD.ai Annotator addresses the critical need for efficient and accurate annotation of medical imaging data, a foundational step in developing reliable AI models for clinical applications. By providing a scalable, secure, and user-friendly platform, it empowers medical professionals and researchers to build high-quality datasets, deploy and validate AI models, and integrate these models into clinical workflows. This accelerates the development and adoption of AI in medicine, ultimately enhancing patient care and outcomes.

Who Is the Company Behind MD AI Annotator?

Mindkosh

Mindkosh is the platform for curating, labeling and validating datasets for your AI projects. Our industry leading annotation platform combines collaborative features with AI-assisted annotation features to provide a comprehensive suite of tools to label any kind of data. If you are simply looking to get your data labeled, our high quality annotation services combined with an easy to use Python SDK and web-based review platform, provide an unmatched experience. Learn more about our annotation platform - https://mindkosh.com/annotation-platform Learn more about our annotation services - https://mindkosh.com/annotation-services

Who Is the Company Behind Mindkosh?

Nexdata AI

Nexdata AI provides ready-to-use datasets, custom data collection, and data annotation services for organizations developing artificial intelligence and machine learning systems. The company offers more than 1,500 commercially licensable datasets spanning computer vision, speech, OCR, NLP, generative AI, autonomous driving, robotics, and embodied AI applications. In addition to off-the-shelf datasets, Nexdata supports custom data acquisition and annotation projects across images, video, audio, text, and multimodal data. Nexdata's services are used by organizations building embodied ai systems, large language models, speech technologies, computer vision systems, autonomous driving solutions, and intelligent healthcare applications.

Who Is the Company Behind Nexdata AI?

  • Seller: NEXDATA
  • Year Founded: 2011
  • HQ Location: Singapore, SG
  • LinkedIn® Page: www.linkedin.com
    23 employees on LinkedIn®

Nextura.ai

Nextura.ai is a comprehensive AI data intelligence partner that empowers enterprises to develop precise and intelligent systems. By managing the entire data-to-intelligence pipeline, Nextura.ai ensures that AI models are trained on high-quality data, leading to faster training times, improved performance, and seamless scalability. Key Features and Functionality: - Data Sourcing: Acquires real-world and synthetic multi-modal data across over 30 languages, ensuring compliance and dialect-level precision. - Data Annotation: Provides expert annotation services, including bounding boxes, segmentation, OCR, NER, LiDAR/3D point cloud, RLHF, and LLM annotation, all under ISO-aligned quality assurance protocols. - Off-the-Shelf Data (OTS): Offers pre-built, commercially licensed training datasets across various domains such as healthcare, banking, automotive, and conversational AI. - Technology Annotation: Specializes in LLM fine-tuning, RLHF, prompt engineering, MLOps, and code review across multiple programming languages and cloud platforms. - Multilingual Annotation: Supports over 30 global languages, including more than 20 Indian languages, with native speaker networks and regional quality assurance. - Software Development: Delivers custom software solutions across various technologies, including Python, Java, JavaScript, .Net, and Go, with end-to-end DevOps and cloud deployment. - Inverse Text Normalization (ITN): Provides specialized ITN for ASR/TTS pipelines, converting spoken-form text into written form across numbers, currency, dates, and named entities. - Trust & Safety: Ensures content moderation, fraud detection, user behavior analysis, privacy, and ethical-AI safeguards across industries like banking, healthcare, telecom, media, and retail. Primary Value and Solutions: Nextura.ai addresses the critical need for high-quality, annotated data in AI development. By offering end-to-end services from data collection to AI deployment, it enables enterprises to build robust AI models that perform effectively in real-world scenarios. This comprehensive approach reduces the time and resources required for AI development, ensures compliance with industry standards, and supports scalability across various sectors, including banking, healthcare, automotive, retail, media, and more.

Who Is the Company Behind Nextura.ai?

Ocular AI

Ocular AI is the Multimodal AI Data Lakehouse. With Ocular, AI teams can seamlessly ingest, catalog/curate, search, annotate, and train on video, image, and audio data — all on one AI-native platform. Built for speed, scale, and accuracy, Ocular transforms petabytes of raw, unstructured data into high-quality datasets and production-grade custom models, enabling the next generation of multimodal AI. Whether you're building computer vision systems, robotics perception models, or domain-specific generative AI, Ocular provides everything you need to go from data to model — fast. Ocular Foundry — The Multimodal Lakehouse for AI Foundry is a multimodal data lakehouse purpose-built for unstructured data workflows. It combines powerful infrastructure, intuitive tooling, and AI-native workflows into one cohesive platform. Ingest, Catalog, & Curate — Bring all your unstructured data into a single, unified platform. Foundry supports direct integrations with cloud storage, SDKs, APIs, and more to centralize enterprise-scale video, image, and audio datasets. Visualize and curate your data using embedding-powered interfaces for smarter, label-prioritized workflows. Search & Understand — Use natural language to search across petabytes of video and image data. Ask complex queries like “Show forklifts near a dock” or “Find red cars at night,” and Foundry will pinpoint exact frames and timestamps. The platform understands scenes, detects actions, reads embedded text, and locates key events across modalities. Annotate & Label with Agents & Humans— Supercharge annotation workflows with AI Data Agents, fine-tuned models, and human-in-the-loop collaboration. Use advanced tools for bounding boxes, segmentation, audio labeling, and frame-level tagging — all with project-specific ontologies and automated QA checks. Train & Evaluate — Fine-tune and evaluate custom models directly inside Foundry with integrated GPU-powered training. Track data lineage, monitor label coverage, and assess model readiness in real time with rich analytics and visual dashboards — no context switching or pipeline fragmentation. Foundry is the infrastructure layer built for teams solving hard AI problems with real-world, messy data. Bolt — Expert-in-the-Loop Annotation at Scale Bolt is Ocular’s high-precision annotation service designed for enterprises that need fast, accurate, domain-specific labeling. Unlike crowdwork platforms, Bolt is powered by trained professionals — engineers, medical experts, and QA specialists — to ensure every label meets your model’s unique requirements. With Bolt, you get: - Scalable annotations across video, image, and audio data - Expert-in-the-loop workflows for critical edge cases - Tight integration with Foundry for seamless project execution - Speed and accuracy without sacrificing context or quality Trusted by forward-thinking AI teams tackling the hardest multimodal AI problems. Ocular AI is SOC 2 compliant and designed to meet the security and performance demands of enterprise AI. Confidently build multimodal, production-ready models — all on one Multimodal Lakehouse.

Who Is the Company Behind Ocular AI?

  • Seller: Ocular AI
  • Year Founded: 2024
  • HQ Location: San Francisco, US
  • LinkedIn® Page: www.linkedin.com
    6 employees on LinkedIn®
Bijou Barry
BB
Researched and written by Bijou Barry
Updated April 9, 2026