Tupi (software)

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The logo of Tupi.svg
Screenshot of Tupi.png
Tupi running on Windows 7
Original author(s) Labtoon SAS
Developer(s) Gustav González and Cody Clees[1]
Stable release 0.2 revision git05 (Amandy) / December 14, 2014; 18 months ago (2014-12-14)
Written in C++
Operating system Unix-like, Windows, Mac OS X
Type Animation software
License GPLv2
Website www.maefloresta.com/portal/about

Tupi (formerly KTooN) is a software application for the design and creation of 2D animation. This tool, inspired by and for animators, is being developed by an open community. It is covered under the terms of the GNU General Public License v3, meaning that Tupi is free and open-source software. After Tupi was forked from KToon, KToon's official website was changed to redirect to the website for Tupi.


The project began in Cali, Colombia in 2002 as an initiative of two young animators working at the Toonka Films and Soluciones Kazak companies. They were looking to create software that would encourage the evolution of the incipient 2D animation industry in Latin America at that time. From the beginning of the project they determined that the application would have to be open and portable to as wide a range of operating systems as possible. Initial priority has been given to open source platforms like Linux based distros. During this first planning phase, the name KTooN was chosen for the software, the first interface designs for the application were made and the Qt library was selected as the main library for programming the software.

During the same year the project applied for and received a grant from Colciencias, a public entity of the Colombian government dedicated to the promotion of science and technology. This grant sponsored KTooN's development for the first year, supporting a team of two programmers and one consultant. During this first cycle the project's website was published at http://ktoon.toonka.com, and the first release (version 0.7) was published.[2]

In 2003, looking for new sponsors, the project applied to SENA, a Colombian government institution dedicated to public education. The project received a grant that sponsored KToon for another year of development with a team of programmers similar to that of the first cycle. Release of version 0.8 was completed and the project started gaining popularity with users around the world.

Unable to secure further funding, the project was dormant for three years, until 2009. In 2009 the original creators of, worked with a company called Labtoon SAS at the Wayback Machine to continue the project, with the intention of making it the premier project of its type. In the middle of 2010 Ktoon.net website was announced and version 0.9 of the software was released. There was a considerable re-design made to the graphical interface and the new website, resources such as forums and a public bug tracker, to better serve the user community.

The funding of the project in its third cycle is based on donations made from the community through the Internet.


In 2011 developer Gustav Gonzalez forked KToon, naming his fork Tupi after the Tupí people of Brazil.[3][4][5] In 2013 Tupi ran a fundraising campaign to boost development and help complete version 1.0 of the project.[6] In 2014 ran another project to help port Tupi to Windows.[7]


One of the main objectives of this project from the beginning has been to provide an easy user experience, starting at the design of the GUI which allows the creation of simple animations in only 5 steps.

Despite still being in early development, the software includes many features:

  • Modular user-friendly interface[clarification needed]
  • Animation and preview modules
  • Basic tools for vector illustration
  • Timeline and exposure sheet
  • Import of Bitmap images (useful for Stop Motion animation)
  • Export to various formats (Ogg Theora, AVI, MPEG, SWF and a sequence of PNG images)

Development directions[edit]

The goal of being a tool for introducing novice digital artists to the world of animation was fulfilled with the first releases. Development is focused on reaching a professional level that will allow advanced users to make professional-quality animations. Some of the elements of the route map are:

  • Tweening
  • Particles
  • Sound Support
  • Object Library
  • Bones, Inverse Kinematics, Pivots
  • Keyframe Support
  • Morphing


Within the Free and open source software (FOSS) world, three other projects focus on the same topic:

  • Pencil2D: Traditional frame by frame 2D animation tool
  • Synfig: An industry quality software designed for 2D animations

Other alternatives are:

See also[edit]


  1. ^ "About Tupi | Tupí". Maefloresta.com. Retrieved 2016-04-22. 
  2. ^ Ben McGrath (September 14, 2006). "KToon: Simple 2D animation". Linux.com. KToon may see a bit more of a faster development cycle, due to its backing by Colciencias, the Colombian institute for the Development of Science and Technology 
  3. ^ Marko Dragicevic. "2D Animation Tools". Linux Magazine. Retrieved 2016-04-22. 
  4. ^ "Meet Tupi, KToon's fork | Libre Graphics World". Libregraphicsworld.org. 2011-01-05. Retrieved 2016-04-22. 
  5. ^ "Tupi 0.1 git06 released with updated tweening | Libre Graphics World". Libregraphicsworld.org. Retrieved 2016-04-22. 
  6. ^ "Tupi runs a fundraiser on Kickstarter to boost development | Libre Graphics World". Libregraphicsworld.org. Retrieved 2016-04-22. 
  7. ^ "Tupi project goes to Indiegogo, asks for funding of a Windows port | Libre Graphics World". Libregraphicsworld.org. 2014-08-06. Retrieved 2016-04-22. 

External links[edit]