OpenFortiGUI is an open-source VPN-Client to connect to Fortigate VPN-Hardware. It is based on openfortivpn and adds an easy to use and nice GUI on top of it, written in Qt5.

Unlike other VPN-clients it is also possible to connect to multiple VPN-destinations  simultaneously. It is an replacement for the closed-source Forticlient – SSLVPN Client.

Important: Since version 0.2.12 the encoding of AES-encrypted passwords has changed because of a change of the upstream AES-library. You must reset all passwords for your VPN-profiles again to work, sorry for the inconveniences.

Features include:

  • Qt5 GUI, based on 5.5
  • openfortivpn library built-in, no separate download required
  • All settings saved in text-files, so easy to share, passwords saved AES-encrypted (key can be defined as needed)
  • VPNs divided into local and global sections (readonly, useful for deployments to many users)
  • VPN-groups can be defined to start groups of VPNs at the same time
  • Trayicon with fast access to start/stop VPNs and groups
  • Multiple VPN connections possible simultaneously
  • Certificate and user/password auth supported
  • English and german language (sorry for german screenshots 😉 )


Prebuild packages are available for following Distros:

Ubuntu 16.04 (last Update 16.07.2017): 

OpenFortiGUI 0.3.0 32bit
OpenFortiGUI 0.3.0 64bit

Debian 9 (last Update 16.07.2017):

OpenFortiGUI 0.3.0 64bit

You can also use our apt mirror, for instructions see:

Quick instruction to build from source:

  1. Install DEV-tools (on Ubuntu: build-essential, qt5-default, libssl-dev)
  2. git clone
  3. cd openfortigui && git submodule init && git submodule update
  4. cd qtinyaes && git submodule init && git submodule update
  5. cd .. && qmake && make -j8
  6. openfortigui binary is ready

Used software/libraries/resources:

25 thoughts on “OpenFortiGUI

  1. nalbyuites

    Thank you for the hard work! openfortiGUI 0.2.10-dev is working fine for me on Solus OS.

  2. Christian

    Working great for me on KDE Neon. One wish, an option to close/minimize to system tray. Otherwise, just perect! Thank you so much!

  3. Christian

    After having used it for some time I have found that it doesn’t close the process when I close the application, so I will have to kill it manually before I am able to open it again. That would be good to have fixed.

  4. Sven

    We have 2FA and the GUI version does not support that yet, something you will implement?
    Thanks in advance!

    1. Ti Post author

      You are right, this is not implemented right now. I am working on this, but its quite hard to “hook” into the existing openfortivpn code without changing too much code. But stay tuned, updates will come.

  5. b.f.

    thanks for great app. I’ve found one problem – after Disconnect it does not delete added route (if configured in Options tab -> “Set routes”).

  6. Eric S. Smith

    Speaking of features that might be hard to implement, there doesn’t seem to be support for HTTP proxies as in forticlientsslvpn’s “Global settings”.

  7. luis amaya

    openfortigui its an incredible software, just need some fixes. As they already commented you , it doesnt delete added routes when the quitting connection is established by the VPN.
    Thank you !!! cheers

  8. fprietog

    It works for my work connection with a lil problem.

    Using “FortiClient SSLVPN 4.0.2333”, after negotiation three lines were added to my resolv.conf file:

    search spaced.dsd

    Using “openFortiGUI 0.2.10-dev” only the nameserver lines are added to resolv.conf, lacks the search line:


    So connection works but I need to apply the spaced.dsd suffix manually to machine names/intranet links. Not so handy 🙁

    Thanks and best regards.

  9. Stanton

    How Can I share this Connection?

    i’ll do:
    echo “1” | sudo tee /proc/sys/net/ipv4/ip_forward

    sudo iptables -t nat -A POSTROUTING -o ppp0 -j MASQUERADE
    sudo iptables -A FORWARD -o ppp0 -i eth0 -m conntrack –ctstate NEW -j ACCEPT
    sudo iptables -t nat -A POSTROUTING -s -o eth0 -j MASQUERADE

    but dont working 🙁

  10. netikras

    Really appreciate your effort! I really do. However I’ll stick with the CLI version.

    Firstly, because it’s cli 🙂 Yes, gui is a very nice eyecandy and it can store passwords as well so I’m a single click away, but… It’s a GUI. So SSH is a no-go for this version.

    Secondly, because either it still needs some polishing or I do not get how it should behave. I created a connection, hit on Connect and it turned green. A second later it became red and since then I can no longer make it green (connect) again. Logs are not filling any more either

    INFO: Connected to gateway.
    INFO: Authenticated.
    INFO: Remote gateway has allocated a VPN.
    INFO: Got addresses: [XX.XX.XX.XX], ns [,]
    INFO: Interface ppp0 is UP.
    INFO: Tunnel is up and running.
    INFO: Cancelling threads…
    INFO: Connected to gateway.
    ERROR: Could not authenticate to gateway (No cookie given).
    INFO: Closed connection to gateway.
    INFO: Logged out.

    So I’ll just stick with CLI 🙂

    1. Ti Post author

      Thanks for your feedback.

      Yes, OpenFortiGUI is designed for GUI but can also be used in CLI. For example: openfortigui –start-vpn –vpn-name your-vpn-profile –main-config ‘/path/to/main.conf’

      The only downside is that it still needs the QT-libraries. So on a remote server its still best to stick with openfortivpn.

      Concerning your problem: This is weird, its already connected but aborts the connection later on. What features are you using with your vpn (certs, otp). Is there any log on your Fortigate? Have you tried openfortivpn to validate the problem?


      1. Turcol

        Thanks for the information about the CLI. When I tried to run it on amd64 it give the error Segmentation fault (core dumped)

        The command was run like this (the post ^^ is missing the double –) :
        openfortigui –-start-vpn –-vpn-name your-vpn-profile –-main-config ‘/path/to/main.conf’

        Any thoughts about what can be happening (the conf file works properly from the GUI)?


  11. jorge

    netikras: the same happened to me. I selected the connection and click on disconnect again even if it was disconnected. After that I was able to connect again.

  12. jelle


    I realy like your official forticlient deb packages. I tried this GUI and it looks great but i cant get it to work.
    both the endpoints I’m connecting to are plain ip’s no dns names and no reverse lookup zones.
    they wont connect and all I find in the log is the following
    ERROR: gethostbyname: Unknown host
    INFO: Closed connection to gateway.
    ERROR: connect: Connection refused
    INFO: Could not log out.

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  14. Nicolas

    Work perfectly to replace Forticlient SSL-VPN 4.0.2333.
    I’ve just needed to check “Set routes” to work with my connection settings.

    Thanks a lot!


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