Open source thanks

Prezi is built on and with the aid of several open source projects. We would like to thank the following projects for helping us achieve our goals:

  • HarfBuzz – Prezi uses the HarfBuzz OpenType shaping engine to provide great typography across platforms.
  • Emscripten – Emscripten is a great tool for us to reuse existing C/C++ code on the web.
  • Solr – Solr is used in searching for Prezis and images.
  • ElasticSearch – We use ElasticSearch to provide analytics and to carry out linguistic analysis.
  • Kotlin – Kotlin is one of our development languages, where we want self-evident code that is more elegant than Java.
  • Sikuli – Sikuli helps us to create automated tests for Prezi.
  • Hadoop – All our big data lives on Hadoop.
  • Icinga – Makes sure our engineers are on top of production issues.
  • Vagrant – Helps us test our infrastructure.

Fonts We Use

We use a lot of beautiful fonts at Prezi. We'd like to thank the following designers for the use of these great fonts:

  • Annie Use Your Telescope
    AnnieUseYourTelescope.ttf: Copyright (c) 2010, Kimberly Geswein (kimberlygeswein.com).
  • Crimson Text
    CrimsonText-Roman.ttf: Copyright (c) 2010, Sebastian Kosch (sebastian@aldusleaf.org), with Reserved Font Name "Crimson Text". This Font Software is licensed under the SIL Open Font License, Version 1.1. This license is available with a FAQ at: http://scripts.sil.org/OFL.
  • Dancing Script
    DancingScript-Regular.ttf: Copyright (c) 2011 by Pablo Impallari. impallari.com. All rights reserved.
  • Dosis
    Dosis-Medium.ttf: Copyright (c) 2011, Edgar Tolentino, Pablo Impallari, Igino Marini (impallari.com), with Reserved Font Name Dosis.
  • Fontin
    A font by Jos Buivenga (exljbris) www.exljbris.com.
  • Gentium Basic
    GenBasR.ttf: Copyright (c) SIL International, 2003-2008.
    GenBasI.ttf: Copyright (c) SIL International, 2003-2008.
  • Istok Web
    IstokWeb-Bold.ttf: (C) 2009, 2010, 2011, 2012 Andrey V. Panov.
  • J.D Handcrafted
    "J.D." may be freely re-distributed, provided that this text file accompanies the font. (http://www.speakeasy.org/~ecf/alphabet.htm).
  • Josefin Slab
    JosefinSlab-Regular.ttf: Copyright (c) 2010 by Typemade. All rights reserved.
  • Lobster Two
    LobsterTwo-Regular.ttf: Copyright (c) 2011 by Pablo Impallari. impallari.com. All rights reserved.
  • Love Ya Like A Sister

    LoveYaLikeASister.ttf: Copyright (c) 2011 by Kimberly Geswein. All rights reserved.
  • Nanum
    NanumGothic.ttf: Copyright (c) 2010, NAVER Corporation
  • NotoSerif
    NotoSerif-Regular.ttf: Copyright 2012 Google Inc. All Rights Reserved.
    NotoSerif-Italic.ttf: Copyright 2012 Google Inc. All Rights Reserved.
    NotoSerif-Bold.ttf: Copyright 2012 Google Inc. All Rights Reserved.
  • Nunito
    Nunito-Regular.ttf: Copyright (c) 2011 by Vernon Adams. All rights reserved.
  • Open Sans
    OpenSans-Light.ttf: Digitized data copyright © 2010-2011, Google Corporation.
    OpenSans-Bold.ttf: Digitized data copyright © 2010-2011, Google Corporation.
    OpenSans-ExtraBold.ttf: Digitized data copyright © 2011, Google Corporation.
  • PT Sans
    PT_Sans-Web-Regular.ttf: Copyright © 2009 ParaType Ltd. All rights reserved.
    PT_Sans-Web-Italic.ttf: Copyright © 2009 ParaType Ltd. All rights reserved.
    PT_Sans-Web-Bold.ttf: Copyright © 2009 ParaType Ltd. All rights reserved.
  • Raleway
    Raleway-Thin.ttf: Copyright (c) 2010-2012, Matt McInerney (matt@pixelspread.com), Pablo Impallari (impallari@gmail.com), Rodrigo Fuenzalida (hello@rfuenzalida.com) with Reserved Font Name "Raleway"
    Raleway-Regular.ttf: Copyright (c) 2010-2012, Matt McInerney (matt@pixelspread.com), Pablo Impallari (impallari@gmail.com), Rodrigo Fuenzalida (hello@rfuenzalida.com) with Reserved Font Name "Raleway"
    Raleway-Bold.ttf: Copyright (c) 2010-2012, Matt McInerney (matt@pixelspread.com), Pablo Impallari (impallari@gmail.com), Rodrigo Fuenzalida (hello@rfuenzalida.com) with Reserved Font Name "Raleway"
  • Sang Sang
    SangSangTitleOTFM.ttf: Copyright (c) 2010, KT&G Corporation
  • Savings Bond
    Copyright (c) Typographer Mediengestalter, 2000. All rights reserved. SavingsBond computer font created by Harold Lohner 1998 and placed into the public domain by him.
  • Source Sans Pro
    SourceSansPro-Regular.ttf: Copyright 2010, 2012 Adobe Systems Incorporated (http://www.adobe.com), with Reserved Font Name 'Source'. Source is a trademark of Adobe Systems Incorporated in the United States and/or other countries.
  • Titillium Web
    TitilliumWeb-Bold.ttf: Copyright (c) 2009-2011 by Accademia di Belle Arti di Urbino and students of MA course of Visual design. Some rights reserved.
  • Vera Sans Mono
    Copyright (c) 2003 by Bitstream, Inc. All Rights Reserved. Bitstream Vera is a trademark of Bitstream, Inc.
  • Yanone Kaffesatz
    YanoneKaffeesatz-Bold.ttf: Copyright (c) 2010, Yanone (http://yanone.de/typedesign/). All rights reserved. This Font Software is licensed under the SIL Open Font License, Version 1.1. This license is available with a FAQ at: http://scripts.sil.org/OFL