Education & Reference
In this category are tools to study and learn a language, dictionaries and translation services, mathematics tools (such as calculators and equation editors), astronomy (sky maps, for example), and any other matter you are interested in. Moreover, this section also contains references where you can find answers to your questions, including encyclopedic and tutorial websites.
- AlternativeTo is a website which lists alternatives to web-based software, desktop computer software, and mobile apps.
- Wikipedia is a free, multilingual encyclopedia project supported by the non-profit Wikimedia Foundation. Wikipedia has 17 million articles (3.
- Content-agnostic flash card software that supports audio, images, and videos via LaTeX.
- Google Translate is a free online translation service that can instantly translate text and web pages between over 50 languages.
- If you are a developer you know what Stack Overflow is. The biggest and best Q&A site for developers on the web.
- SpeedCrunch is a free, fast, high precision open source algebraic calculator with an intuitive interface and a extensive list of features, including: Unlimited Variables,
- Learn languages by playing a game. It's 100% free, fun, and scientifically proven to work.
- Grammarly Editor is an automated proofreader that corrects contextual spelling mistakes, checks for more than 250 common grammar errors, enhances vocabulary usage, and suggests...
- Khan Academy is not-for-profit with the goal of changing education for the better by providing a free world-class education to anyone anywhere.
- The world’s best online translator for you and your team.
- Quora.com is a question/answer service allowing users to pose questions that other users can answer, each question and answer can have comments, each users can write one...
- 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.
- Stellarium is a free open source planetarium for your computer. It shows a realistic sky in 3D, just like what you see with the naked eye, binoculars or a telescope.
- Sci-Hub is a website with over 64.5 million academic papers and articles available for direct download.
- 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.