Best Data Annotation and Synthesis AI Agents (2026)

Data Annotation and Synthesis

Argilla is an open-source platform designed for data annotation and synthesis, specifically focused on improving NLP dat...

Data Annotation and Synthesis

COCO Annotator is a web-based tool designed for annotating images with segmentation masks, bounding boxes, and keypoints...

Data Annotation and Synthesis

CVAT is an open-source, web-based tool designed for annotating images and videos to train computer vision models. It sup...

Data Annotation and Synthesis

Doccano is an open-source text annotation tool designed to assist in creating labeled data for machine learning tasks. I...

Data Annotation and Synthesis

Gretel Synthetics is an open-source tool for generating synthetic structured and unstructured text data using differenti...

Data Annotation and Synthesis

Label Studio is an open-source tool for labeling and annotating data across multiple domains, including text, images, au...

Data Annotation and Synthesis

NeMo Curator is a GPU-accelerated framework designed for large-scale data curation and preprocessing, specifically optim...

Data Annotation and Synthesis

refinery is an open-source tool designed to help data scientists scale, assess, and maintain natural language datasets. ...

Data Annotation and Synthesis

SDV (Synthetic Data Vault) is an open-source ecosystem for generating synthetic data that mimics the statistical propert...

Data Annotation and Synthesis

Semantic Segmentation Editor is an open-source tool designed for annotating camera and LIDAR data with pixel-level preci...

Data Annotation and Synthesis

synthcity is an open-source library designed for generating and evaluating synthetic tabular data, with a focus on maint...

Data Annotation and Synthesis

ViPE is an open-source AI tool that processes raw video footage to automatically generate camera pose annotations and de...

Data Annotation and Synthesis

YData Synthetic is an open-source Python library that generates synthetic tabular and time-series data using advanced ge...