makesense.ai is a free to use online tool for labelling photos. Thanks to the use of a browser it does not require any complicated installation - just visit the website and you are ready to go. It also doesn't matter which operating system you're running on - we do our best to be truly cross-platform. It is perfect for small computer vision deeplearning projects, making the process of preparing a dataset much easier and faster. Prepared labels can be downloaded in one of multiple supported formats. Documentation and more details can be found in the project repository.
The Computer Vision Annotation Tool (CVAT) is a free, online, interactive video and image annotation tool for Computer Vision. Many UI and UX decisions are based on feedback from professional data annotation teams.
- Introduction [video]
- Annotation mode [video]
- Interpolation mode [video]
- Attribute mode [video]
- Segmentation mode [video]
- Tutorial for polygons [video]
- Semi-automatic segmentation [video]
Classifai aims to be one of the most comprehensive open-source data annotation platforms available. It supports the labelling of various data types with multi labelled outputs forms for AI model training. Plus it runs locally on your computer.
Classifai has native builds for Windows, Linux and MacOS so it's easy to get started.
Figure below show how Classifai fits in the machine learning workflow. It enables the labelling of raw data imported from data source. The labelled data can then channel into training environments for supervised / semi-supervised learning.
Classifai also comes with a Conversion Launcher which is useful for Optical Character Recognition (OCR), Currently supports the conversion of format of pdf/tif to png/jpg.
- Download: https://classifai.ai/products/
- Source Code: https://github.com/CertifaiAI/classifai
- Documentation: https://docs.classifai.ai/
doccano is an open source text annotation tool for human. It provides annotation features for text classification, sequence labeling and sequence to sequence. You can create labeled data for sentiment analysis, named entity recognition, text summarization etc. https://doccano.herokuapp.com/
A semantic annotation platform offering intelligent assistance and knowledge management. It's free and more feature-rich than prodi.gy. https://inception-project.github.io
