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Remote Administration Tool for Windows


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Free, Open-Source Remote Administration Tool for Windows

Quasar is a fast and light-weight remote administration tool coded in C#. The usage ranges from user support through day-to-day administrative work to employee monitoring. Providing high stability and an easy-to-use user interface, Quasar is the perfect remote administration solution for you.

Please check out the Getting Started guide.






  • TCP network stream (IPv4 & IPv6 support)
  • Fast network serialization (Protocol Buffers)
  • Encrypted communication (TLS)
  • UPnP Support (automatic port forwarding)
  • Task Manager
  • File Manager
  • Startup Manager
  • Remote Desktop
  • Remote Shell
  • Remote Execution
  • System Information
  • Registry Editor
  • System Power Commands (Restart, Shutdown, Standby)
  • Keylogger (Unicode Support)
  • Reverse Proxy (SOCKS5)
  • Password Recovery (Common Browsers and FTP Clients)
  • ... and many more!


Supported runtimes and operating systems

  • .NET Framework 4.5.2 or higher
  • Supported operating systems (32- and 64-bit)
    • Windows 11
    • Windows Server 2022
    • Windows 10
    • Windows Server 2019
    • Windows Server 2016
    • Windows 8/8.1
    • Windows Server 2012
    • Windows 7
    • Windows Server 2008 R2
  • For older systems please use Quasar version 1.3.0


Open the project Quasar.sln in Visual Studio 2019+ with installed .NET desktop development features and restore the NuGET packages. Once all packages are installed the project can be compiled as usual by clicking Build at the top or by pressing F6. The resulting executables can be found in the Bin directory. See below which build configuration to choose from.

Building a client

Build configurationUsage scenarioDescription
Debug configurationTestingThe pre-defined Settings.cs will be used, so edit this file before compiling the client. You can execute the client directly with the specified settings.
Release configurationProductionStart Quasar.exe and use the client builder.






See the wiki for usage instructions and other documentation.


Quasar is distributed under the MIT License.
Third-party licenses are located here.

Thank you!

I really appreciate all kinds of feedback and contributions. Thanks for using and supporting Quasar!

A mod to make and play Terraria mods. Supports Terraria 1.4 (and earlier) installations

tModLoader, a Terraria modding API Build StatusDiscord

tModLoader (TML) is an open-source, community-driven, modification and expansion of the Terraria game that makes it possible to make and play mods. TML expands your Terraria adventures with new content to explore created by the Terraria community! TML allows players to create and play Terraria mods and is designed in such a way so that you can play alone or together with friends, with one mod or with multiple mods: choose to play however you like! It is however required that all your friends also install TML if you want to play together; vanilla users can't play with TML users. Find the instructions below to learn how to install TML.

Note: the code on this GitHub repository will be ahead of the current released version.


Want to play or create mods? Or do you want to contribute to tModLoader perhaps? Click the text that applies to you.

Get tModLoader on Steam

I am a player (Play mods)

I am a developer (Create mods)

I am a contributor (Help create tModLoader)

Support us

First and foremost, TML is largely a community endeavor: built by the community; used by the community. Without all the contributions people in the community have made over the years, TML would not be in the state it is in. TML is a free-to-use modification of the game and will stay that way. However, if you would like to buy us a coffee, or maybe even multiple, you can choose to pledge some money to support us financially. We'd like to kindly express once again that TML was not created to create a profit. All of the core team members continue their best efforts to improve and maintain TML despite their real-life obligations, free of charge or any request from the community.

The preferred method of supporting the core team is by choosing a pledge through Patreon. All of the money donated this way is equally shared amongst the core members to those who wish to receive part of it. This truly is the right way to support us financially if you want to do so. By becoming a patron you can receive a special role on our Discord server if desired. You should be able to couple your Discord account to your Patreon account and automatically receive your role.

If you do not want to use a Patreon subscription, you should contact one of the core team members through the Discord server to find an appropriate method of supporting us. Thanks again!

Get in touch

If you would like to contact us or TML users, it's best to join our Discord server. To use Discord you will need to register a new account on their website.


Core team

TML is largely created and maintained by a core team of contributors: Blushiemagic, Chicken-Bones, Jopojelly, Jofairden, Mirsario and Solxanich

This project exists in its current state thanks to all the people who have contributed:


TML is licensed under the MIT license