Developer(s)  Markus Hohenwarter et al 

Stable release  6.0.672 (19 October 2021[±]  )
Preview release  (none)^{[1]} [±] 
Repository 

Written in  Java, HTML5 
Operating system  Windows, macOS, ChromeOS, Linux; also a web app 
Type  Interactive geometry software 
License  GeoGebra License;^{[2]} Noncommercial freeware; portions under GPL, CCBYNCSA 
Website  geogebra 
GeoGebra (the name is a portmanteau made from the two words Geometry and Algebra) is an interactive geometry, algebra, statistics and calculus application, intended for learning and teaching mathematics and science from primary school to university level. GeoGebra is available on multiple platforms, with apps for desktops (Windows, macOS and Linux), tablets (Android, iPad and Windows) and web.
GeoGebra's creator, Markus Hohenwarter,^{[3]} started the project in 2001 as part of his master's thesis at the University of Salzburg. After a successful Kickstarter campaign, GeoGebra expanded its offering to include an iPad, an Android and a Windows Store app version.^{[4]} At the same year it incorporated Bernard Parisse's Giac into its CAS view.^{[5]} The project is now freeware (with opensource portions) and multilingual, and Hohenwarter continues to lead its development at the University of Linz.
GeoGebra includes both commercial and notforprofit entities that work together from the head office in Linz, Austria, to expand the software and cloud services available to users.
In December 2021, GeoGebra was acquired by edtech conglomerate Byju's for approximately 100 million USD.^{[6]}
GeoGebra is an interactive mathematics software suite for learning and teaching science, technology, engineering, and mathematics from primary school up to the university level. Constructions can be made with points, vectors, segments, lines, polygons, conic sections, inequalities, implicit polynomials and functions, all of which can be edited dynamically later. Elements can be entered and modified using mouse and touch controls, or through an input bar. GeoGebra can store variables for numbers, vectors and points, calculate derivatives and integrals of functions, and has a full complement of commands like Root or Extremum. Teachers and students can use GeoGebra as an aid in formulating and proving geometric conjectures.
GeoGebra's main features are:
The GeoGebra Materials platform^{[8]} is a cloud service that allows users to upload and share GeoGebra applets with others. GeoGebra Materials was originally launched as GeoGebraTube in June 2011, and was renamed in 2016. As of April 2016 the service hosts more than 1 million resources, 400,000+ of which are public. "Materials" include interactive worksheets, simulations, games and ebooks created using GeoGebraBook.
GeoGebra Materials can be also exported in several formats, including SVG, Animated GIF, Windows Metafile, PNG, PDF and EPS, as well as copied directly to the clipboard. GeoGebra can also generate code for use in LaTeX files.
GeoGebra's source code is licensed under the GNU General Public License (GPL) and all other nonsoftware components are under Creative Commons BYNCSA.^{[9]}^{[10]} Commercial use is subject to a special license and collaboration agreement.
The International GeoGebra Institute (IGI) is the nonprofit arm of the GeoGebra Group. The institute coordinates research, development, translation and deployment efforts of the GeoGebra system across a global network of user groups at universities and nonprofit organizations, as well as provide certification to GeoGebra experts and trainers.