PyMuPDF is a high performance Python library for data extraction, analysis, conversion & manipulation of PDF (and other) documents.

CLI and local web plain text note‑taking, bookmarking, and archiving with linking, tagging, filtering, search, Git versioning & syncing, Pandoc conversion, + more, in a single portable script.

Core ML tools contain supporting tools for Core ML model conversion, editing, and validation.

A simple, high-quality voice conversion tool focused on ease of use and performance.

A free open-source collection of Codex Skills for Xiaohongshu operations, covering title generation, profile optimization, topic planning, comment replies, and conversion paths.

A collection of free Codex Skills for Xiaohongshu operations, covering title generation, profile optimization, topic planning, comment reply, and conversion path workflows.

One-click synchronization tool for **AI Agent Skills** (`SKILL.md`) across coding agents and IDEs.

A self-hosted file conversion server & share tool that supports 445 file formats in 13 languages.

A ComfyUI custom node integration for local multi-engine multi-language Text-to-Speech and Voice Conversion. Supports: RVC, Echo-TTS, Qwen3-TTS, Cozy Voice 3, Step Audio EditX, IndexTTS-2, Chatterbox (classic and multilingual), F5-TTS, Higgs Audio 2, 3, and VibeVoice with unlimited text length, SRT timing, Character support, and many audio tools

An on-premises, OCR-free unstructured data extraction, markdown conversion and benchmarking toolkit. (https://idp-leaderboard.org/)

Data structure for annotated matrices in single-cell analysis. Use when working with .h5ad files or integrating with the scverse ecosystem. This is the data format skill—for analysis workflows use scanpy; for probabilistic models use scvi-tools; for population-scale queries use cellxgene-census.

Core Python library for astronomy and astrophysics workflows that need Astropy APIs, including units/quantities, coordinates, FITS I/O, tables, time systems, WCS, and cosmology. Use when implementing or debugging astronomical data analysis code with Astropy.