4K Video Downloader is a video and audio downloader for YouTube, Vimeo, Facebook, Dailymotion, Metacafe, and other video-sharing services. It features video quality up to 4k resolution, FLV, MP4, and MKV support, extraction of audio to the MP3 format, and a "Smart Mode" for fast downloads.
Hypercube is a graph visualization tool for drawing DOT (graphviz), GML, GraphML, GXL and simple text-based graph representations as SVG and EPS images. It comes with a Qt-based GUI application and a Qt-independent commandline tool. Hypercube uses a simulated annealing algorithm to lay out the graph, which can be easily parameterized to achieve the desired look.
phpsqlitesite is a minimal PHP/SQLite content Website system. It gives you a searchable multilingual site with automatic navigation and optional social sharing and comment sections. It consists of one PHP source code file and one SQLite database file, with no requirements other than PHP and SQLite.
pdf2htmlEX renders PDF files in HTML. It aims to provide an accurate rendering while being optimized for Web display. It is designed for scientific papers with complicated formulas and figures, so a precise rendering is the first concern, but general PDF files are also supported.
OpenTeacher is a vocabulary training application that helps you learn a foreign language. It uses a list of words in both a known and a foreign language and tests you. It supports smart question asking and interval training with Think answers, shuffle answer, and repeat answer input modes. It has easy symbol, Greek, and Cyrillic input, and reads and writes T2K (Teach2000) and WRTS files, and reads ABBYY Lingvo Tutor files. It is available in Arabic, Australian English, Brazilian Portuguese, Chinese (Traditional), Croatian, Czech, Danish, Dutch, French, German, Hebrew, Hungarian, Japanese, Korean, Polish, Russian, Serbian, Slovenian, Spanish, Swedish, and Turkish.