simple AI web application

Computers may be trained to detect and grasp the surrounding image in the same way humans do use digital images, films, and deep learning models. In this case, picture labelling or image annotation is beneficial. The accuracy of the computer vision model is determined by the quality of these labels, which are utilized for more than merely detecting distinct objects in the same image and discriminating between different classes. But how do you classify images? What guidelines should you follow when classifying images? These questions will be addressed in this post. You may also utilize the free demo version of the online picture tagging tool.

before image annotationafter image annotation

What is Image Labeling online tool?

The Online Image Labeling Tool is a data labeling tool that focuses on recognizing and labeling specific aspects of an image. Data labeling tools in computer vision include those that apply labels to raw data, including videos and images. Each tag indicates an object class connected with the data. Labels are used by supervised machine learning models when learning to identify a given object class in unclassified data. This allows these models to link meaning with the data, which aids in model training.

Image labeling is used to generate datasets for computer vision models, separated into training sets for initial model training and test/validation sets for model performance evaluation. Data scientists use the dataset to train and test their model, and the model may then automatically assign labels to previously unknown and unlabeled data.
Readmore: What is image labeling ?

image labeling appliction

Image labeling online tool applications

Several applications for image labeling online tools will become increasingly vital as the internet’s future develops. Image labeling online tools and facial recognition software may make it much easier to use social media and categorize photographs in an online album. Images may be automatically classified and labeled based on their content, eliminating the need to identify each image individually.
It might benefit both businesses and content providers. Metadata may be generated automatically depending on the images and content on a page, avoiding the need to type it out word for word. It may also be used to describe images on a website. This helps with SEO and makes websites more attractive to the visually impaired.
Furthermore, depending on the information gleaned from images, the future of tagging images may facilitate advertising.

Some key applications that utilize large labelimg online datasets include:

  • Computer Vision: labelimg online help train computer vision models to identify, categorize, or describe image content. This enables applications like facial recognition, medical image analysis, autonomous vehicle perception, and more.
  • Machine Learning: Labels act as training data for machine learning algorithms to learn visual concepts. This supports image classification, object detection, image segmentation, image captioning, and other ML applications.
  • Autonomous Vehicles: Precise bounding box and segmentation labels enable self-driving cars to detect objects like pedestrians, vehicles, roads, signs, and hazards.
  • Medical Imaging: Labeling anatomical structures, lesions, tumors, and other medical abnormalities in X-rays, MRIs, and CT scans helps diagnose diseases.
  • E-Commerce: Classifying product images with labels aids catalog management and improves visual search for online shopping.
  • Social Media: Labelimg online allow apps to categorize content and offer better recommendations to users.

Why is Image Labeling online tools Important for AI and Machine Learning?

Image labeling is a critical step in the development of supervised models with computer vision capabilities. It aids in the training of machine learning models for labeling complete pictures or identifying item classes within an image. Here are a few examples of how an image labeling online tool might help:

  • Creating usable artificial intelligence as a service (AIaaS) models—image labeling online tools and approaches aid in the identification and capture of certain items in images. These labels make photos machine-readable, and highlighted images are frequently used as training data sets for AI and machine learning models.
  • Image labeling online tool and annotation tools aid in improving computer vision performance by enabling object detection. Labeling AI and machine learning models lets them find patterns and eventually recognize objects on their own.

Labelimg Online Process

High-quality labelimg online requires a structured process and methodology. Key steps include:

  1. Data Collection: Relevant images are sourced and compiled into datasets required for the project goals. Copyright and licenses are checked.
  2. Data Preprocessing: Images are filtered for quality, converted to optimal formats, and prepared for the labeling task.
  3. Defining Taxonomy: A labeling taxonomy is created that outlines the classes, concepts, attributes, relationships, and schema that raters will use to tag data.
  4. Tools Selection: Annotating tools and labeling interfaces like “Amazon SageMaker Ground Truth” are chosen based on project needs.
  5. Raters Recruitment: Experienced human raters are recruited and screened for their accuracy and skills.
  6. Rater Training: Detailed instructions and guidelines for the labeling taxonomy are provided through training docs, videos, and trial samples.
  7. Quality Monitoring: A percentage of each rater’s work is evaluated for accuracy and feedback provided to improve quality.
  8. Label Collection: Raters start annotating the images using the labeling interface following guidelines. Progress is tracked.
  9. Data Analysis: Completed labels are reviewed for completeness, consistency, and adequate coverage of the taxonomy. Additional raters may be recruited to strengthen weak areas.
  10. Data Delivery: The final labeled dataset is exported and delivered for integration into the target machine learning systems.

By methodically executing these key steps, high-quality labeled training data can be obtained to build more accurate AI vision models. The human insight brought through labeling is invaluable for advancing computer vision and perception. Companies should invest in a well-managed labeling process if machine learning is core to their products involving visual data. With proper tools and infrastructure, labelimg online can scale to support enterprise-level AI projects in any industry.

image labeling machine learnig

Methods of Image Labeling

There are 3 kinds of methods for online image labeling: Manual labeling, Semi-Automatic Annotation, Synthetic Annotation

Manual labeling

Labeling tools frequently manually label images, offering textual comments for entire images or sections of images. Because manual image labeling can serve as a standard for training computer vision algorithms, inaccuracies in manual labeling can lead to less accurate algorithms. Labeling precision is critical for neural network training. Image annotators frequently employ tools to aid them in their manual labeling operations.

Semi-Automatic labeling

Because of the difficulties of human labeling, some people prefer to completely automate the image labeling process. Some computer vision applications need labeling, which humans cannot do quickly (e.g., classifying pixels). Online tools for automated image labeling may discover object boundaries. While these technologies save time, they must frequently be more precise than human labelers.

Synthetic labeling

Manual labeling can be replaced with synthetic image labeling since it is more cost-effective and accurate. Based on the operator’s criteria, an algorithm creates realistic visuals, automatically supplying item bounding boxes. Synthetic image databases can resemble real-world picture databases with labels already attached.

What are the Image labeling online tools?

Image labeling refers to the process of attaching a label to an image or set of images. This process is usually manual. Of course, some image labeling tasks can be semi-automatic.

The purpose of the image labeling process is to train computer vision algorithms for tasks such as image classification and object recognition. To train and evaluate algorithms, machine learning engineers first specify model labels and prepare a labeled dataset with a large number of image samples assigned to each label. Image labeling is the process of creating this data set.

Image labeling online tool make it easier for teams to review large collections of images and apply tags to entire images or specific parts of an image. These tools actually produce a structured dataset that can be used to train computer vision algorithms.

What are the Image labeling online tools?

Things to consider when evaluating Image labeling online tool

The following points can help you a lot in evaluating the suitability of the image labeling tool:

  • It is useful if your labeling tool can generate labeling s in your desired format. Creating labeling s directly in the appropriate format helps to simplify the data preparation workflow and save a lot of time.
  • The tool you choose should be intuitive and simple to save time and make the labeling process easier.
  • Make sure the tool fits the skills of your team members and doesn’t have a steep learning curve.
  • Make sure the chosen tool supports your applications. Some tools only support Windows or web-based applications. Browser-based tools can only be used through a web browser. If your labeling project contains sensitive information, you should avoid uploading the data to a third-party web application to ensure your privacy and security.

Image labeling tool for object detection

Deep learning has attracted a lot of attention in the last decade and has become a dominant technology in the field of artificial intelligence. Object detection is considered as one of the most important fields of deep learning and computer vision. It has been specified in a variety of computer vision programs, including object tracking and retrieval, video surveillance, image description, image segmentation, medical imaging, and others. Object detection, like other processes, needs to go through a series of steps.

Data labeling is necessary for supervised machine learning models to perform well. Image annotation is a subset of data labeling where the labeling process focuses only on visual digital data including images and videos.

Image labeling tool for object detection

An introduction to image classification labeling tool

The process of labeling images to develop artificial intelligence and machine learning models is known as image classification labeling. This process involves using an image classification labeling tool with human labeling to label data or tag images.

Key features of image classification labeling tool

Efficient user interface: The user interface of the tool should be efficient to minimize human errors and enable rapid tagging.

Intuitive Design: An intuitive online image classification labeling tool built for fast performance, even on low-end PCs and laptops. Both are essential for taggers who spend their days working in the annotation editor.

Support for different data formats and use cases: The image classification labeling tool must handle different use cases for image classification labeling.

Support for multiple image classification labeling types: A good image classification labeling tool should have features such as a bounding box annotation tool, auto-tagging, and pen tool for freehand image segmentation.

Interpolation: Some image classification labeling tools have an interpolation feature that allows the image classification labeling to specify a frame by jumping to the next frame before pushing the annotation forward or backward in time.

Data management: An image classification labeling tool should provide capabilities for sorting and managing large datasets.

Key features of image classification labeling tool

Image labeling online tool

Label Studio

It is an open-source data tagging tool with labeling functionality. This tool provides a simple user interface that allows you to tag different types of data such as text, audio, time series data, videos and images and export the information to different formats.

Here are some key features of this tool:

  • Multi-user tagging that ensures every labeling created is linked to your account and collaboration is also possible
  • It gives you the ability to work on multiple projects
  • Customizable label templates give you the ability to customize the visual interface according to specific labeling needs
  • It supports all types of data such as HTML, audio, images, text, video and time series
  • It gives you the ability to integrate with machine learning models to visualize and compare the predictions of multiple models and then proceed with initial labeling.


V7 is an automatic annotation platform that combines dataset management, image annotation, video annotation, and autoML model training to automatically complete labeling tasks. V7 enables teams to store, manage, annotate and automate their data annotation workflows:

  • Pictures
  • the video
  • DICOM medical data
  • Microscopic images
  • PDF and document processing
  • 3D volumetric data

Key features include:

  • Automatic annotation features without the need for previous training
  • Composable workflow that allows multiple models and humans to loop steps
  • Dataset management that remains robust at large scale
  • Integrated data tagging service
  • Real-time collaboration and fluid UX
  • Full frame video annotation tool


It is one the Image labeling online tool which is a training data platform built on three main layers that facilitate the entire process from tagging and collaboration to iteration. This platform was created in 2018 and quickly became one of the most popular data tagging tools.

Lablebox offers AI labeling tools, labeling automation, human resources, data management, a robust API for integration, and a Python SDK for extensibility.

Enables annotation with polygons, bounding boxes, lines as well as advanced tagging tools.

Key Features:

  • Labeling with the help of artificial intelligence
  • Integrated data tagging services
  • QA/AC tool review work processes and labels
  • Robust tagging performance analysis
  • Customizable interface to simplify tasks

Its advantages:

  • Superpixel coloring option for segmentation or semantic segmentation
  • Friendly UX interface
  • Performance monitoring and advanced quality control
  • Enterprise applications and compatibility with SOC2

Scale AI

It is a Image labeling online tool that enables the annotation of large volumes of 3D sensor data, image and video. The ML-based pre-labeling Scale provides an automated quality assurance system, dataset management, master processing and AI-assisted data annotation that avoids data processing for autonomous driving.

This data annotation tool can be used for a variety of computer vision tasks such as object recognition, classification, and text recognition. Also, this platform supports many data formats.

Key Features:

  • ML-based prediction
  • Core dataset management
  • Automated QA system with gold sets
  • Features of document processing
  • Model data management in the loop

Its advantages:

  • Generate synthetic data
  • Super pixel segmentation
  • Powerful for autonomous driving applications including LIDAR and mapping


It is one of the Image labeling online tool which is an integrated cloud-based annotation platform with embedded tools and automation for generating high-quality datasets. This platform considers the entire life cycle of the artificial aquarium such as annotation, model evaluation and model improvement with the help of human feedback in the loop.

It provides tools for basic computer vision tasks such as detection, classification, keypoints, and segmentation. Dataloop supports image and video data.

Key Features:

  • Model-assisted labeling
  • Support for multiple data types
  • Advanced team workflow with data indexing and efficient query system
  • Video support

Its advantages:

  • Automation and production pipelines using Python SDK and Rest API


Super Annotate

This ai labeling tool is one of the best data labeling that creates an end-to-end data solution with an integrated service marketplace, where it helps its customers to find the right annotation team in geographic location and skill. Labeling teams are integrated directly into the labeling and are managed by their own professional project managers, which is reported to be one of their main strengths. The company provides data on its labeling with various labeling tools without annotation services.

Company History: The company’s research was founded in 2018, initially as an image annotation tool for semantic segmentation, but quickly gained momentum and expanded to other ML development pipelines.

Key Features: This software focuses on 5 key components of the AI life cycle:

  1. Data labeling tools and efficient project management
  2. Artificial intelligence dataset management, data management and version control
  3. Artificial intelligence model management, model comparison and versioning
  4. Automation and orchestration through various startup systems
  5. Annotation services market

Data labeling tools: On the labeling side, the company started with image annotation capabilities. In these few years, this ai labeling tool launched annotation, video and text editor.

MLOps: While covering different data formats, it is also important to cover other MLOps capabilities that make these annotation tools companies more compelling throughout the AI lifecycle. In this regard, the capabilities of this tool are very attractive for any startup or enterprise users. In particular, easy project management, data management, data versioning, model management, automation, and a complete SDK allow customers to automate extremely complex AI pipelines.

Security: The tool offers multiple levels of data security and allows users to store their datasets locally or in the labeling’s encrypted S3 buckets.

Annotation Services: On the services side, this tool reviews over 400 annotation service teams and allows its users to find teams in different geographies, languages, and medical specialties, as well as relatively affordable annotation services. For easier tasks such as classifying images.


It is one of the Image labeling online tool which is fully managed data labeling platform that generates training data for computer vision models. This platform was established in 2015. The platform works in a way that supports video image data and offers a wide variety of important annotation tools such as bounding boxes, cubes, polygons or markers. The program works on the micro principle, that is, it divides large problems into small tasks and distributes them among its large community of trained annotators.

Key features:

  • It is fully managed and only requires businesses to share data and labeling guidelines
  • It offers the chance of feature extraction.
  • Manages documents


  • Features product comparison and competitor analysis
  • Making advanced quality control tools
  • Strong for autonomous driving teams

It is a web-based image annotation platform where individual researchers or large teams can annotate and test datasets and neural networks. In addition to basic annotation tools, the platform provides a data transformation language tool and enables 3D point cloud.

Key Features:

  • Using the use of artificial intelligence, labeling
  • Annotation and management of multi-format data
  • Option to develop and import plugins for custom data formats
  • 3D point cloud
  • Options for project management at multiple levels for teams, workspaces, and datasets


  • Possibility of creating holes inside polygons
  • Data Transformation Language tools
  • Hive Data
  • For the purpose of locating and annotating training data for AI/ML models, Hive Data is a fully managed data annotation system.

Hive Data

Hive Date is a fully managed data annotation solution to source and label training data for ML/AI models. This tool supports image, video, 3D-point cloud annotation text and source data. Besides basic annotation, this tool offers multi-frame object tracking, lines and 3D panoptic segmentation.

Key Features:

  • Support for multiple data types
  • Available data sources
  • Fully managed data tagging services


  • Provides pre-trained models
  • Advanced project management workflow


It is an Image labeling online tool that is open-source, web-based image and video annotation tool for data labeling for computer vision, supported and maintained by Intel. This tool supports the main tasks of supervised machine learning: object detection, image classification and image segmentation. The tool offers four basic annotation types: box, polygon, multiline, and point.

Key Features:

  • Semi-automatic annotation
  • Interpolation of shapes between keyframes
  • Dashboard with list of projects and annotation tasks
  • LDAP


  • Web-based and collaborative
  • Easy deployment

Label me

It is an Image labeling online tool developed by the MIT Computer Science and Artificial Intelligence Laboratory. This tool provides a dataset of digital images with annotations. This tool supports six annotation types including polygon, rectangle, circle, line, point and line bar. One of the limitations of this tool is that files can only be saved and exported in JSON format.

Key Features:

  • Modification of control points
  • Delete segments and polygons
  • Provides six types of annotations
  • File list

Label me


It is a graphical image annotation tool for labeling objects using bounding boxes in images. The tool is written in Python and you can export your annotations as XML files in PASCAL VOC format. In the default version of this tool, only one type of annotation is provided: a bounding box or rectangle shape. However, with the help of a GitHub page, you can add another shape to it with a code.

Key Features:

  • Annotation is saved as XML fable in PASCAL VOC
  • Must be installed locally
  • An image annotation provider only

VGG Image Annotator

It is an open-source Image labeling online tool for manual annotation of image and video data developed in the Image Geometry group. This tool is released under the BSD-2 clause to allow use for academic and commercial purposes. This lightweight tool is based on HTML, JavaScript and CSS without dependencies on external libraries. It is a standalone HTML page that you can run as an online application in modern web browsers without any setup or installation.

VGG Image Annotator

Make Sense

It is a free and open-source Image labeling online tool. This online tool requires no installation, saves no images, and offers a cross-platform experience. Regardless of the operating system you have, you can easily use this tool by visiting the website. The purpose of this tool is to reduce the time spent on tagging photos with the help of artificial intelligence models that automate repetitive activities and provide recommendations. Now, in this section, we will discuss how this tool works:

  • A single-shot detector (SSD) model: This model was trained on the COCO dataset to draw boxes on images. In some cases, it can also suggest a back label.
  • PoseNet model: This model can determine the position of a person in the image by estimating the position of the key joints of the body. You can use this tool to quickly and easily prepare datasets for small computer vision projects and download prepared labels in various formats. It is based on the React/Redux duo and written in TypeScript.

COCO Annotator

It is a web-based Image labeling online tool available under the MIT license. Justin Brooks developed this tool to help train models for object detection, object localization, and key-point detection. In this section, the key features of this tool are described for you:

  • Dataset Labeling: Annotator helps you label data using free curves, key-points, and polygons. It provides the ability to track object instances and tag image segments and enables tagging of objects with isolated visible parts within an instance.
  • COCO format: Notes tool saves and exports in COCO format to recognize objects on a large scale.
  • Annotation and Selection: This tool supports image annotation with semi-trained models and also gives you the ability to use advanced selection tools such as MaskRCNN Magic Wand and DEXTR.
  • Security: This tool allows you to use an authentication system to secure your data.

Amazon SageMaker Ground Truth

This is an advanced automatic ai labeling tool from Amazon. The tool provides a fully managed data labeling service that simplifies the implementation of datasets for machine learning. With this ai labeling tool, you can easily create a very accurate training data set. There is a custom built-in workflow through which you can label your data with high accuracy in minutes. The tool supports various types of tagging output including text, images, video and 3D point clouds.

Labeling features including automatic 3D cube cutting, removal of distortion in 2D images and automatic segmentation tools make the labeling process easier and more efficient. They reduce the time required to label the dataset.

During the process of this tool you:

  1. Import raw data into Amazon S3
  2. Create automated tagging tasks using built-in custom workflows
  3. Make a careful selection from a group of stickers
  4. Label with the Assistive Labeling feature
  5. Create accurate training datasets

The main advantages of these tools are:

  • Automatic and easy to use
  • Improve data labeling accuracy
  • Reduce time with tagging features

Amazon SageMaker Ground Truth


It is an open source ai labeling tool mainly developed for labeling image and video data for computer vision research. This tool provides dynamic features for data labeling in computer vision. This tool can be considered as a framework or a set of standard components for quickly configuring a label tool designed specifically for your needs. This tool gives you the ability to write your own custom configuration or use the default settings for tagging data. It also gives you the ability to write and factorize your visualizations. You can perform the entire process from installation to tagging and creating datasets and visualizations that are properly documented. Using this tool will be very easy.

The advantages of this tool are:

  • Simplifies image and video data tagging
  • A specialized tool for creating detailed datasets for computer vision
  • You can customize the default configurations to create your own tagging workflow


It is an ai labeling tool for text-based tagging. The tagging process is optimized for text formats and text-based operations to create specialized datasets for text-based artificial intelligence.

At its core, it’s a natural text processing annotation tool. It also provides a platform for managing text labeling tasks manually, using machine learning models to optimize tasks, and more.

With the help of this tool, you can automatically get relevant insights from the text. This tool helps to discover patterns, identify challenges and implement solutions. The platform supports ML and dictionary annotations, multiple languages, multiple formats, secure cloud storage, team collaboration, and quality management.

The process of this tool is simple:

  1. Import text-based data into any file format
  2. Do tagging automatically or manually
  3. Export detailed datasets in API format

The advantages of this tool are:

  • It is easy to use and very accessible to everyone
  • This tool is flexible and you can integrate it into your application with a personalized workflow and workforce
  • It takes little time and is affordable


It is an AI-based image annotation tool that uses an intelligent feedback tool that helps organizations develop computer vision AI to bring automation to their data pipeline. It offers a wide range of annotation types including bounding boxes, polygons, automatic object detection and automatic semantic segmentation. It also has built-in quality control features to ensure accurate annotation.

Roboflow Annotate

It is a web-based annotation tool used by many engineers. For tasks including object identification, classification, and segmentation, use this tool to label images. This program offers a strong Label Assist feature that can use generic models or an earlier iteration of your model to automatically label photos in your dataset. This tool offers you special features including:

  • With image history, you may observe how an image’s annotations have evolved over time.
  • Image commenting, members of your annotation team can talk about annotations on an image.
  • To prevent annotators from unintentionally adding new classes to your model, use ontology locking.
  • Advanced image recognition features with a review stage and…
  • Annotator insights, this feature shows how many annotations have been made and the acceptance rate of those annotations broken down by annotator, time, and project.


Image labeling and annotation helps improve computer vision accuracy by enabling object detection. Training artificial intelligence and machine learning with labels helps these models recognize patterns until they can recognize objects on their own.

Annotating data is a prerequisite for training machine learning models, while labeling aims to find meaningful features in a dataset. Annotation makes it easy to identify relevant material, and labeling helps identify patterns to train algorithms.

There is an important difference between image labeling and object recognition, in image labeling, the AI model assigns a high-level label to an image or video. In object detection, the artificial intelligence model identifies each significant object in the image or video.

In machine learning, data labeling is the process of identifying raw data and adding one or more meaningful and informative labels to provide context so that a machine learning model can learn from it.