Giac/Xcas is a free computer algebra system for Windows, Mac OS X and Linux/Unix (license GPL3, for commercial dual-license contact us).
- Calculator
- Free • Open Source
- Mac
- Windows
- Linux

Giac/Xcas is a free computer algebra system for Windows, Mac OS X and Linux/Unix (license GPL3, for commercial dual-license contact us).

A Q&A platform for students and their instructors.



Free online algebra calculator from GeoGebra: solve equations, expand and factor expressions, find derivatives and integrals

BiblioteQ strives to be a professional cataloging and library management suite. The SRU and Z39.50 protocols are used for retrieving data for books, journals, and magazines.

Anagram is a lightweight application that, as its name suggests, enables you to find anagrams for various words. It includes an extensive dictionary and can use any number of letters from the provided text.

Write with confidence across documents, email, and the web. With features that help strengthen your spelling, grammar, and style, let Microsoft Editor be your intelligent writing assistant.

Imagine more than 20 tools right on your device, offline. You don’t have to imagine, Toolbox exists.

Learn a language while you browse the web.

"Learn Chinese - HelloChinese" is a fun, effective and engaging app for beginners to learn Chinese Mandarin. Using effective methodologies, HelloChinese helps beginners learn Chinese Mandarin quickly to a conversational level.

Virtaal is a graphical translation tool. It is meant to be easy to use and powerful at the same time. Although the initial focus is on software translation (localisation or l10n), it can be useful for document translation.

Apps & Oranges helps people find and recommend the best apps for getting stuff done. It's social Q&A: Question & Apps.

With MyScript Calculator, perform mathematical operations naturally using your handwriting.


Fluentjoy is the #1 short-video app for English learners. With more than 3,000 short videos covering real-life situations, conversation practices (with accent coaching) and quizzes, we provide a user-specific learning plan and a way for user to track their learning progress.



Learn to code and make your own games with Hopscotch.
CREATE Whether games, art, stories, or more, you can code whatever you want with kid-friendly programming. Publish your creations to Hopscotch’s fully moderated community, where kids can play and learn from your games.
PLAY .



Evolve is built for content authors and learning designers who want to build courses that work everywhere, are completely themable and have over 30 powerful interactions .

Eureka.in NSES app is specially designed for student and teachers dedicatedly aligned with the National Science Education Standard for USA.

WordMat is an add-on to Microsoft Word which creates a tab with math functionality. Part of the Math functionality is provided by other open-source applications like Maxima, GeoGebra, Graph and GnuPlot.

The Hex Workshop Hex Editor by BreakPoint Software is a complete set of hexadecimal development tools for Microsoft Windows 2000 and later. Hex Workshop combines advanced binary editing and data interpretation with the ease and flexibility of a modern word processor.

A repository for thousands of Windows dll (dynamically linked library) files.
Learn French, Spanish, Italian or German with fun, interactive 5-minute lessons, quick-fire word games, object translation technology, flashcards and lots more.



Learn to code, mod Minecraft and build games with Tynker's easy-to-learn, visual programming courses. Tynker is the online platform that makes it fun to learn computer programming for 4th through 8th graders.

An educational video game that teaches math for grades 1st-8th.
