Education and Reference

A Python library and command-line tool for offline neural machine translation using downloadable language packages

Manages, converts, and syncs e-book libraries across dozens of formats and reading devices, with built-in viewing and editing tools

Geographic browser that provides detailed satellite imagery, 3D terrain, and street views to explore the Earth, visualize geographical data, and measure distances with a virtual globe

A self-hosted machine translation API that translates text and files between languages without relying on third-party cloud services

An extended version of pdfTeX, a TeX-based computer typesetting system, using Lua as an embedded scripting language

A redistribution of TeX Live, a typesetting environment which includes Mac-specific utilities and front-ends

A tool for pre-processing planetary images by cropping, centering, and selecting frames for efficient stacking and analysis

A block-based visual programming tool designed to teach coding through creating interactive stories, games, and animations

Builds and edits ebooks in the EPUB 2 and EPUB 3 formats, giving control over markup, metadata, styling, and table of contents

Designed to improve typing skills through customized exercises, practice tests, and interactive games, focusing on speed and accuracy