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Sozi is a presentation tool for SVG documents.

It is free software distributed under the terms of the Mozilla Public License 2.0.

More details can be found on the official web site:

Building and installing Sozi from sources

Get the source files

Clone the repository:

git clone git://

Install the build tools and dependencies

Install Node.js. The build script for Sozi is known to work with Node.js 14 from Nodesource. If you plan to build a Windows executable from Linux or OS X, also install wine. In Debian/Ubuntu and their derivatives, you can type the following commands.

sudo apt install nodejs
sudo apt install wine # To build Windows executables
sudo npm install --global gulp-cli

If you plan to build Debian packages, install the following additional packages:

sudo apt install devscripts debhelper

If you plan to build Redhat packages, install the following additional packages:

sudo apt install rpm

From the root of the source tree:

npm install

Get the binaries for ffmpeg (optional, but video export will not work without them). Download and unzip the FFMPEG executables to the following folders:

  • Linux 32-bit: vendor/ffmpeg/linux-ia32
  • Linux 64-bit: vendor/ffmpeg/linux-x64
  • Windows 32-bit: vendor/ffmpeg/win32-ia32
  • Windows 64-bit: vendor/ffmpeg/win32-x64
  • MacOS X 64-bit: vendor/ffmpeg/darwin-x64


To build and run the desktop application without packaging it, run the following commands from the root of the source tree. At startup, Sozi will show an error notification that can be ignored.

npm start

To build and package the desktop application for all platforms, do:

gulp all

After a successful build, you will get a build/dist folder that contains the generated application archives for each platform.


A Debian package is available for users of Debian or Ubuntu-based distributions.

sudo dpkg -i sozi_[...].deb

You can convert it to the RPM format with Alien:

sudo alien --to-rpm sozi_[...].deb

For other platforms, Sozi is released as a zip/tar.xz archive that you can extract wherever you like.

  • OS X users can drag the subfolder into their Applications folder.
  • Windows and Linux users can run the sozi executable directly from the extracted folder.

If installation on your specific platform is supported by Sozi, there will be an install folder in the extracted archive containing installation scripts. To install Sozi system-wide:

cd sozi-[...]/install
sudo ./

To install Sozi in your home folder:

cd sozi-[...]/install

Helping debug Sozi

While Sozi is running, press F12 to open the developer tools. Check the Console tab for error messages.

Some environment variables will enable debugging features in Sozi. When running Sozi from the command line, you can add one or more variable assignments like this:

SOME_VAR=1 SOME_OTHER_VAR=1 sozi my-presentation.svg

Where SOME_VAR and SOME_OTHER_VAR are variable names from the first column of this table:

Variable Effect
ELECTRON_ENABLE_LOGGING Display JavaScript console messages in the current terminal window.
SOZI_DEVTOOLS Open the developer tools immediately. This can be useful if F12 has no effect or when you want to debug events that happen at startup.
SOZI_DISABLE_HW_ACCELERATION Disable hardware acceleration in the rendering engine.
SOZI_DISABLE_COLOR_CORRECT_RENDERING Disable color profile correction.