Browse free open source C# Terminals and projects below. Use the toggles on the left to filter open source C# Terminals by OS, license, language, programming language, and project status.

  • Grafana: The open and composable observability platform Icon
    Grafana: The open and composable observability platform

    Faster answers, predictable costs, and no lock-in built by the team helping to make observability accessible to anyone.

    Grafana is the open source analytics & monitoring solution for every database.
    Learn More
  • Run applications fast and securely in a fully managed environment Icon
    Run applications fast and securely in a fully managed environment

    Cloud Run is a fully-managed compute platform that lets you run your code in a container directly on top of scalable infrastructure.

    Run frontend and backend services, batch jobs, deploy websites and applications, and queue processing workloads without the need to manage infrastructure.
    Try for free
  • 1
    YAT

    YAT

    Yet Another Terminal :: Serial Communication :: Engineer/Test/Debug

    Engineering, testing and debugging of serial communication. Supports RS-232/422/423/485 as well as TCP/IP Client/Server/AutoSocket, UDP/IP Client/Server/PairSocket and USB Ser/HID. Optimized for simple command sets of e.g. embedded systems.
    Leader badge
    Downloads: 514 This Week
    Last Update:
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  • 2
    ArchiSteamFarm

    ArchiSteamFarm

    C# application with primary purpose of farming Steam cards

    ASF is a C# application with the primary purpose of farming Steam cards from multiple accounts simultaneously. Unlike Idle Master which works only for one account at a given time, while requiring Steam client running in the background and launching additional processes imitating "game-playing" status, ASF doesn't require any Steam client running in the background, doesn't launch any additional processes and is made to handle unlimited Steam accounts at once. In addition to that, it's meant to be run on servers or other desktop-less machines and features full cross-OS support, which makes it possible to launch on any operating system with .NET Core runtime, such as Windows, Linux, and macOS. ASF is possible thanks to the gigantic amount of work done in the marvelous SteamKit2 library. Today, ASF is one of the most versatile Steam power tools, allowing you to make use of many features that were implemented over time.
    Downloads: 52 This Week
    Last Update:
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  • 3
    Harmony

    Harmony

    Patching, replacing and decorating .NET and Mono methods

    Harmony gives you an elegant and high-level way to alter the functionality in applications written in C#. It works great in games and is well established in titles like 7 Days To Die, BattleTech, Besiege, Cities:Skylines, Kerbal Space Program, Oxygen Not Included, Ravenfield, Rimworld, Sheltered, Stardew Valley, Staxel, Subnautica, The Ultimate Nerd Game, Total Miner, Unturned, SCP: Secret Laboratory and many more. If you develop in C# and your code is loaded as a module/plugin into a host application, you can use Harmony to alter the functionality of all the available assemblies of that application. Where other patch libraries simply allow you to replace the original method, Harmony goes one step further. It is also used in unit testing WPF controls and in many other areas. Installation is done by using 0Harmony.dll in your project or by using the Lib.Harmony nuget package.
    Downloads: 37 This Week
    Last Update:
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  • 4
    Windows ACME Simple (WACS)

    Windows ACME Simple (WACS)

    A simple ACME client for Windows (for use with Let's Encrypt et al.)

    This is a ACMEv2 client for Windows that aims to be very simple to start with, but powerful enough to grow into almost every scenario. A very simple interface to create and install certificates on a local IIS server. A more advanced interface for many other use cases, including Apache and Exchange. Automatically creates a scheduled task to renew certificates when needed. Get certificates with wildcards, international names, OCSP Must Staple extension (optional). Re-use private keys for DANE, use EC crypto or bring your own CSR. Advanced toolkit for DNS, HTTP and TLS validation: SFTP/FTPS, acme-dns, Azure, Route53, Cloudflare and many more. Store your certificates where and how you want them: Windows, IIS Central Store, .pem files, .pfx file or KeyVault. Compatible with all popular ACME services, including Let’s Encrypt, ZeroSSL, DigiCert, Sectigo, Buypass, Keyon and others. Completely unattended operation from the command line.
    Downloads: 37 This Week
    Last Update:
    See Project
  • HSI Donesafe | #1 Rated Cloud EHS Software | ESG Reporting Icon
    HSI Donesafe | #1 Rated Cloud EHS Software | ESG Reporting

    Trusted by industries worldwide, Donesafe allows organizations to track, manage, and report on essential EHS functions from one central platform.

    HSI Donesafe is a no-code, cloud-based EHS software that simplifies safety, compliance, and risk management, transforming complex processes into user-friendly workflows.
    Learn More
  • 5
    PEASS-ng

    PEASS-ng

    Privilege Escalation Awesome Scripts SUITE

    These tools search for possible local privilege escalation paths that you could exploit and print them to you with nice colors so you can recognize the misconfigurations easily. All the scripts/binaries of the PEAS suite should be used for authorized penetration testing and/or educational purposes only. Any misuse of this software will not be the responsibility of the author or of any other collaborator. Use it at your own machines and/or with the owner's permission. Here you will find privilege escalation tools for Windows and Linux/Unix and MacOS. Find the latest versions of all the scripts and binaries in the releases page. Check the parsers directory to transform PEASS outputs to JSON, HTML and PDF.
    Downloads: 16 This Week
    Last Update:
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  • 6
    PuTTY Session Manager
    PuTTY Session Manager is a tool that allows system administrators to organise their PuTTY sessions into folders and assign hotkeys to favourite sessions. Multiple sessions can be launched with one click. Requires MS Windows and the .NET 2.0 Runtime.
    Downloads: 42 This Week
    Last Update:
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  • 7
    Fluent Terminal

    Fluent Terminal

    A Terminal Emulator based on UWP and web technologies

    FluentTerminal is a modern terminal emulator for Windows built using UWP (Universal Windows Platform) and web technologies. It offers a sleek, tabbed interface and supports a variety of shell environments like PowerShell, CMD, WSL, plus remote shells via SSH/Mosh. Terminal for PowerShell, CMD, WSL or custom shells. Built-in support for SSH and Mosh connections. Supports tabs and multiple windows. Theming and appearance configuration. Import/Export themes, import iTerm themes.
    Downloads: 4 This Week
    Last Update:
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  • 8
    Universal BootLoader Tool helps you easily recover from a failed rom flash, and is known to turn an free update rom into a full rom. (e.g. from the free WM5 update rom available for hx4700 Pocket PCs on HP.com) Only tested with HP iPAQ Pocket PCs.
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    Downloads: 51 This Week
    Last Update:
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  • 9
    SerialToIP is a simple Terminal Server software providing transparent pipe either in TCP server or TCP client socket mode from TCP/IP to a pre-configured serial port. Implemented in C# for .NET 2.0 so the command line version could work in Mono-runtime as well.
    Leader badge
    Downloads: 19 This Week
    Last Update:
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  • Next-generation security awareness training. Built for AI email phishing, vishing, smishing, and deepfakes. Icon
    Next-generation security awareness training. Built for AI email phishing, vishing, smishing, and deepfakes.

    Track your GenAI risk, run multichannel deepfake simulations, and engage employees with incredible security training.

    Assess how your company's digital footprint can be leveraged by cybercriminals. Identify the most at-risk individuals using thousands of public data points and take steps to proactively defend them.
    Learn More
  • 10
    It is a simple implementation of SMTP client, which has functions of sending email and friends list. I will enrich its functionality gradually.
    Leader badge
    Downloads: 31 This Week
    Last Update:
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  • 11
    TcpTerminal

    TcpTerminal

    TCP Terminal is a tool for testing and debugging TCP communication.

    TCP Terminal is a tool for testing and debugging TCP communication. - Works both as a server and as a client. - Accepts input and prints output in HEX and ASCII format. - Separate display of sent and received data.
    Downloads: 33 This Week
    Last Update:
    See Project
  • 12
    Remote Desktop Client for the GNOME Desktop. Supported protocols: RDP, VNC, SSH. Configured sessions can be saved to the built in list. Additional programs required: rdesktop, tightvnc, ssh, gnome-terminal. Application can be run with Mono runtime.
    Leader badge
    Downloads: 4 This Week
    Last Update:
    See Project
  • 13

    SerialPort to Keyboard

    Posts characters from Serialport to the OS as Keystrokes

    See homepage: http://sharperdevelopment.blogspot.de/2013/01/replacing-win-xp-accessibility-features.html
    Downloads: 8 This Week
    Last Update:
    See Project
  • 14
    A C# .net VT/Telnet terminal emulator. The project is still very much in development but the Terminal is quite useable and fairly tolerent. It requires a c# 2 compiler. If anyone has taken this project any further, I'd love to see the results.
    Downloads: 5 This Week
    Last Update:
    See Project
  • 15
    SerialPortNet is an open source serial port communication library for Microsoft .NET. It's written in c#, implements complete .NET 2.0 specifications, and is designed to allow for multiple OSes and add-on 3rd party Serial to Network adapters.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 16
    Wintin is a scriptable MUD client for Windows
    Downloads: 1 This Week
    Last Update:
    See Project
  • 17
    Serial Data Logger

    Serial Data Logger

    A configurable serial data terminal and recorder

    Current stable release: version 1.3 (2022-11-10) More info in wiki.
    Downloads: 3 This Week
    Last Update:
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  • 18
    This application will be the software part for "Universal Atmel Flash 8051 / AVR Programmer" that can be found at : http://home.tiscali.de/peterd/tools/proflash/index.htm (on my opinion this is the best free MCS51/AVR programmer).
    Downloads: 3 This Week
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    See Project
  • 19
    Free Serial Terminal

    Free Serial Terminal

    Communicate with devices at serial ports.

    Downloads: 1 This Week
    Last Update:
    See Project
  • 20

    Protocol tool

    Hexadecimal strings test tool

    This is a software/hardware development tool that allows the user to send strings on an interface (parallel,serial, network or other), specified in hexadecimal or strings or a combination of these. The strings can be retrieved/stored from/to a file.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 21
    .NET VNC Viewer is a VNC viewer written entirely in C#. It is binary compatible with Smartphones, Pocket PCs and Windows desktops (.NET CF or .NET Framework). I write this because other VNC viewers on Pocket PC do not do full screen and screen rotation.
    Downloads: 0 This Week
    Last Update:
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  • 22
    AnywhereTS is a configuration tool to create and deploy thin-clients, utilizing ordinary office PCs as clients. Your organization can re-use already existing office PCs instead of, or in addition to using dedicated thin clients.
    Downloads: 0 This Week
    Last Update:
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  • 23
    BaGet

    BaGet

    A lightweight NuGet and symbol server

    BaGet (pronounced "baguette") is a lightweight NuGet and symbol server. It is open-source, cross-platform, and cloud-ready! You can also use the BaGet.Protocol package to interact with a NuGet server. Cross-platform, dockerized, cloud-ready, supports read-through caching. Can index the entirety of nuget.org. Coming soon, support for private feeds. You can run BaGet on your preferred platform, on your computer, Docker, Azure, AWS, Google Cloud, and Alibaba Cloud (Aliyun). With a few extra steps, you can run BaGet behind a Windows IIS proxy. This has many benefits, including automatic restarts on reboots. You may need to give special permissions to the top-level BaGet folder so that the app can persist in its state. This is necessary as the Application Pools' identity is a virtual account that isn't recognized by the Windows User Management Console.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 24
    BikiSoft contains the windows software and atmel firmware for the BikiRom Mega-board product line. The bikirom boards are used to re-tune 1990-2002 Nissan SR20 based ECUs and ER34 ECUs. The hardware is available seperately.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 25
    Cereal Communicator

    Cereal Communicator

    A free software for implementing serial communication through RS-232.

    Cereal Communicator is a free software designed for implementing serial communication through RS-232 interface. With this sofware, you can send and receive binary, hexadecimal and ASCII data. Requirements: .NET Framework 2.0. Works only on Windows.
    Downloads: 0 This Week
    Last Update:
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