labelo - Free & Open-source

Image annotation

Unlock the full potential of your visual data with our advanced Image Annotation feature

Empowering teams with advanced tools for efficient, accurate, and collaborative data annotation. Seamlessly integrate workflows and transform raw data into valuable insights effortlessly.

Key Features

Comprehensive Annotation Types

From object detection to semantic segmentation, our tool supports multiple annotation methods, allowing you to choose the one that best fits your project.

High Precision

Achieve pixel-perfect annotations with tools tailored for accuracy, including polygons, bounding boxes, and keypoints.

Scalability

Efficiently handle large datasets with bulk actions and intuitive controls, making annotation projects of any size manageable.

Use Case

Semantic Segmentation with Polygons

Draw precise polygons around objects to segment and categorize different regions within an image.

Semantic Segmentation with Masks

Use masks to cover specific areas of an image, identifying and labeling multiple objects within a single scene.

Object Detection with Bounding Boxes

Draw rectangular boxes around objects to detect and classify them within images, essential for tasks like inventory tracking.

Keypoint Labeling

Pinpoint exact locations on objects, perfect for applications like facial recognition and pose estimation.

Image Captioning

Automatically generate descriptive captions for images, aiding in tasks such as visual storytelling and accessibility.

Image Classification

Assign labels to whole images, categorizing them based on the visual content they contain.

Inventory Tracking

Annotate images to automate inventory management with accurate object detection and classification.

Visual Genome

Enhance your dataset with detailed visual annotations for richer, more informative models.

Visual Question Answering

Use annotated images to develop AI models capable of answering questions about visual content.

Get started in five
steps

Begin by uploading your image files in formats like JPG, PNG, SVG, WEBP, and more to get started with annotation.

Choose the appropriate annotation tool, such as bounding boxes, polygons, or keypoints, to suit your specific image annotation needs.

Precisely label your images using our feature-rich editor, whether you’re classifying, segmenting, or tagging key points.

Once your annotations are complete, export the labeled data in formats like JSON or CSV, and review your project’s progress and performance with our detailed analytics.

Supported Annotation Types

Draw precise polygons around objects to segment and categorize different regions within an image.

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Why Choose Our Platform?

Our audio annotation tools are designed with flexibility and precision in mind, making them suitable for a wide range of use cases, from simple transcription tasks to complex multi-speaker analysis. Whether you're working on building speech recognition systems, analyzing customer calls, or detecting environmental sounds, our platform has the tools you need to succeed.