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MediaWiki is a free software wiki package written in PHP, originally for use on Wikipedia. It is now used by several other projects of the non-profit Wikimedia Foundation and by many other wikis.

Download and solve practice problems in over 30 different languages. For code newbies and experienced programmers.

Instantly translate content across 244 languages using powerful AI models. Drag the Kagi Translate bookmarklet for effortless one-click web page translations.

This online learning platform offers over 250,000 courses in subjects like programming, data science, and design. Available in 75+ languages with lifetime access.

Qalculate! is a multi-purpose cross-platform desktop calculator. It is simple to use but provides power and versatility normally reserved for complicated math packages, as well as useful tools for everyday needs (such as currency conversion and percent calculation).

Octave is a computer program for performing numerical computations which is mostly compatible with MATLAB . It is part of the GNU Project. It is free software under the terms of the GNU General Public License.

Stack Exchange is a fast-growing network of 84 [and counting] question and answer sites on diverse topics from software programming to cooking to photography and gaming. We are an expert knowledge exchange: a place where physics researchers can ask each other about quantum...

People come to Quora to ask questions about any subject, read high quality knowledge that's personalized and relevant to them, and share their own knowledge with others. Quora is a place to share knowledge and better understand the world.

A low-cost, capable little PC which can be used for many of the things that your desktop PC does, like games, spreadsheets and word-processing. It also plays high-definition video. We want to see it being used by children and young people all over the world to learn programming.

Qiqqa is a free research and reference manager. Search for, read and annotate your PDFs. Then review your work, write up and create bibliographies instantly.

Monkeytype is a minimalistic typing test, featuring many test modes, an account system to save your typing speed history and user configurable features like themes, a smooth caret and more.

Open-source tool supporting designers in prototyping, documenting circuits, sharing, and creating PCB layouts, empowering artists, researchers, and hobbyists.

SageMath is a free open-source mathematics software system licensed under the GPL. It builds on top of many existing open-source packages: NumPy, SciPy, matplotlib, Sympy, Maxima, GAP, FLINT, R and many more.

Moodle is an open source tool for creating online dynamic web sites for their students. To work, it needs to be installed on a web server somewhere, either on one of your own computers or one at a web hosting company.

Wiktionary is a multilingual, web-based project to create a free content dictionary, available in 158 languages. Unlike standard dictionaries, it is written collaboratively by volunteers, dubbed "Wiktionarians", using wiki software, allowing articles to be changed by...

Definitive technical computing system spanning machine learning and neural networks, data science, visualizations and much more.

Free and Open Source Translation API. 100% self-hosted, no limits, no ties to proprietary services. Built on top of Argos Translate.

Grokipedia is an online encyclopedia created by xAI that positions itself as an alternative to Wikipedia. Articles are generated and later labeled as “fact checked by .

Wikiversity is a Wikimedia Foundation project devoted to learning resources, learning projects, and research for use in all levels, types, and styles of education from pre-school to university, including professional training and informal learning.

My goal is to start a community-driven language-learning platform that gives its users and contributors a way to influence its future and adapt it to special requirements.

Alternative front-end for Google Translate, serving as a Free and Open Source translator with over a hundred languages available

TeXstudio is an integrated environment for writing LaTeX documents. Our goal is to make writing LaTeX as easy and comfortable as possible. Therefore TeXstudio has numerous features like syntax-highlighting, integrated viewer, reference checking and various assistants.

Offers online courses from top institutions worldwide, integrating the latest technology to transform learning and allowing flexibility through open-enrollment courses.

Learning has never been this social and accessible for so many! Bit-sized videos and fun practice sessions grab your attention and keep you focused, for guaranteed best results!.

Have fun while learning a foreign language with Memrise. The more you enjoy learning, the more (and quicker) your skills will develop. This is why entertainment mixed with real-life, relevant content is at the very core of the Memrise language learning experience.