A comprehensive collection of ready-to-use scientific and research skills for AI agents.

Label Studio is a multi-type data labeling and annotation tool with standardized output format

Xournal++ is a handwriting notetaking software with PDF annotation support. Written in C++ with GTK3, supporting Linux (e.g. Ubuntu, Debian, Arch, SUSE), macOS and Windows 10. Supports pen input from devices such as Wacom Tablets.

Open source annotation tool for machine learning practitioners.

Xtreme1 is an all-in-one data labeling and annotation platform for multimodal data training and supports 3D LiDAR point cloud, image, and LLM.

PDF++: the most Obsidian-native PDF annotation & viewing tool ever. Comes with optional Vim keybindings.

Distilled and Refined Annotation of Metabolism: A tool for the annotation and curation of function for microbial and viral genomes

🐝 A fast, easy and collaborative open source image annotation tool for teams and individuals.

AI-powered multi-voice audiobook generator — LLM script annotation, voice cloning, voice design, LoRA training, per-line style control, and export to MP3, chaptered M4B, or Audacity multi-track. Built on Qwen3-TTS.

Cell type annotation for single-cell RNA-seq using multi-LLM consensus

Label Objects and Save Time (LOST) - Design your own smart Image Annotation process in a web-based environment.

Analysis pipeline to detect germline or somatic variants (pre-processing, variant calling and annotation) from WGS / targeted sequencing