Annotate.net icon

Annotate.net

Annotate.net is a free online image annotation tool that allows users to collaborate on image labeling and tagging. It has features for drawing bounding boxes, segmentation masks, dot annotations, and more. Useful for computer vision and machine learning datasets.

What is Annotate.net?

Annotate.net is a powerful yet easy-to-use online image annotation platform for computer vision and machine learning projects. It enables seamless collaboration for teams to label images with bounding boxes, segmentation masks, keypoints, and customized tags.

With Annotate.net, you can quickly build high-quality datasets required for training deep learning algorithms. Its intuitive interface allows labelers to draw bounding boxes and masks, tag objects with class names, and more with just a few clicks. It supports all major image formats including JPEG, PNG, TIFF, BMP.

Some key features include:

  • Flexible labeling - Supports bounding box, polygon, line, dot, cubic bezier, and tag annotations
  • Segmentation masks - Pixel-precise segmentation masks for foreground extraction
  • Real-time collaboration - Multiple labelers can work on the same images simultaneously
  • Annotation history tracking - Review previous edits and revert if needed
  • comments - Annotators can leave notes for specific objects to enable discussions
  • Auto-save - No lost work with instant saving and version control
  • Format conversion - Images are automatically converted to JPEG for efficient storage and access
  • REST API support - Integration with model training pipelines
  • On-premise deployment - For data privacy and customization needs

With its stellar collaboration capabilities, detailed annotation tools, and focus on usability, Annotate.net excels at helping teams annotate images faster with human-level accuracy.

The Best Annotate.net Alternatives

Top Apps like Annotate.net

Microsoft Whiteboard

Microsoft Whiteboard is a collaborative digital canvas designed for teamwork, creativity, brainstorming, and freestyle ideation. It brings the power of pen and touch to Windows 10 devices, letting users create sticky notes, insert images and documents, type freely, and sketch using pen and ink.Whiteboard allows freeform content creation across multiple...

Kahoot!

Kahoot! is a game-based student response system and learning platform that allows teachers and students to create fun learning games called 'kahoots'. Kahoot! can be used to review students' knowledge, for formative assessment, or as a break from traditional classroom activities.Teachers can easily create multiple choice quizzes on any...

Mentimeter

Mentimeter is an interactive presentation software used to engage and interact with audiences during presentations, meetings, lectures, and events. It allows presenters to create fun and engaging slides with different interactive elements like quizzes, polls, word clouds, Q&A features, rankings, and more.The presenter creates an interactive presentation ahead...

SMART Notebook

SMART Notebook is an interactive whiteboard software application created by SMART Technologies in 2003. It works seamlessly with SMART's interactive whiteboards and displays to create an engaging and collaborative learning environment.Some key features of SMART Notebook include:Interactive lessons, presentations, activities, and assessmentsDigital ink with pen, highlighter and creative pen...

Wooclap

Wooclap is an interactive presentation and audience engagement platform used by teachers, presenters, and businesses to make their presentations more engaging. It works by allowing the presenter to easily create interactive elements like polls, quizzes, word clouds, and Q&A features right in their presentation slides.The presenter shares a...

Doceri

Doceri is an interactive whiteboard and screen mirroring application designed for teachers and remote learning. It allows educators to present slides, PDFs, webpages, and other content on a digital whiteboard which students can view remotely on their own devices.With Doceri, teachers can annotate over any content in real-time using...

AhaSlides

AhaSlides is a cloud-based presentation software used to create visually appealing slide decks for business, sales, and marketing presentations. With its intuitive drag-and-drop editor, users can easily customize presentations using hundreds of professionally designed templates.Key features of AhaSlides include:Hundreds of customizable templates with animations, charts, icons, and photosReal-time...

ClassQuiz

ClassQuiz is a versatile classroom quiz web application designed specifically for teachers to conduct online quizzes, practice tests, exams, polls, and surveys. It provides an intuitive interface for educators to easily create quizzes with multiple choice, true/false, fill in the blank, matching, and open-ended question types.Key features of...

Educreations

Educreations is an educational technology software that provides an interactive whiteboard and screencasting capabilities. It was specifically designed for teachers and students to create engaging video lessons, presentations, tutorials, and more.Key features of Educreations include:Digital whiteboard where users can write, draw, add text, shapes, and annotate.Screencasting and...

Socrative

Socrative is a versatile student response system that engages students through fun, game-based educational activities. It allows teachers to deliver quizzes, polls and exit tickets to students and see their responses in real time. The system works through the Socrative Teacher app and the Socrative Student app, available for iOS...

Gynzy

Gynzy is a comprehensive digital learning platform designed for K-12 education. It aims to make learning fun, effective, and accessible for students and teachers through technology.The platform provides standards-aligned content across major school subjects like math, reading, science, and more. It has over 30,000 learning activities, games, videos, and other...

Lorien

Lorien is an open-source IT asset and infrastructure management software. It is designed to provide organizations with deep visibility and control over their IT assets including both hardware and software.Some of the key features of Lorien include:Discovery and inventory of IT assets like servers, desktops, laptops, printers, network...

Gooru

Gooru is an education technology software and content provider founded in 2011 in Redwood City, California. Its mission is to improve learning outcomes for students by making education more equitable through technology.The Gooru Learning Navigator is the company's flagship product - an open online platform for personalized learning and course...

CloudVOTE

CloudVOTE is an user-friendly online survey and voting software designed for organizations that need to frequently engage audiences to gather insights and feedback. It provides an intuitive interface to quickly and easily create unlimited online polls, surveys, quizzes, and ballots. Key features include:Intuitive survey builder with over a dozen...

Hypersay Slides

Hypersay Slides is a free online presentation software that makes it easy for anyone to create professional-looking and visually-appealing slide decks. With its intuitive drag-and-drop editor, users can quickly build presentations from scratch or using one of the many templates and themes available.Some key features of Hypersay Slides include...

ExitTicket

ExitTicket is a free student response system designed for classroom engagement and quick formative assessment. It allows teachers to pose questions during class and have students submit responses on their own devices, providing instant feedback to gauge student understanding.Some key features of ExitTicket:Works on any device with a...

ClassPulse

ClassPulse is a comprehensive classroom management and communication platform designed specifically for K-12 teachers. It allows teachers to take attendance, track student behavior, create and grade assessments, message parents, share documents like syllabi and lesson plans, and more from one centralized hub.Key features of ClassPulse include:Intuitive mobile app...