Open Source C# Productivity Software

C# Productivity Software

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

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  • 1
    Old Win32 Notepad

    Old Win32 Notepad

    Old Windows Notepad remake

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    Downloads: 141 This Week
    Last Update:
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  • 2
    LKY Office Tools

    LKY Office Tools

    Automate downloading, installing, and activating Office versions

    LKY_OfficeTools is an open‑source, green (ad‑free), and safe .NET tool that automates downloading, installing, and activating legitimate Microsoft Office versions. It provides both console and GUI (Mocreak) versions for seamless, one‑click Office deployment. Supports optional components installation: Word, Excel, PowerPoint, Outlook, OneNote, Access, Visio, Project, Publisher, Teams, OneDrive, Skype, etc. Detects system architecture and downloads matching Office builds. Supports at least 43 UI languages and multiple installation methods (online or local).
    Downloads: 5 This Week
    Last Update:
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  • 3
    Free Countdown Timer and Stopwatch Timer

    Free Countdown Timer and Stopwatch Timer

    A high resolution Countdown Timer and Stop Watch in .NET

    A high resolution Countdown Timer and Stop Watch written in C# .NET that pop up a message box with user defined message and play user specified sound when time is up. It use a QueueTimer (via PInvoke) for high resolution timing and System.Timers.Timer for normal resolution. It also allow users to save, load and remove current state to/from a XML file.
    Downloads: 23 This Week
    Last Update:
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  • 4
    EyeRest

    EyeRest

    A lightweight Windows tray application for the 20–20–20 rule

    EyeRest is a simple, open-source desktop utility designed to help users maintain healthy eye habits by reminding them to take regular breaks from screen time based on customizable intervals. The application sits quietly in the system tray and uses gentle pop-up notifications or full-screen break prompts to encourage users to rest their eyes, follow the 20-20-20 rule, or complete other scheduled pauses without disrupting workflow. Users can configure how often reminders appear, how long breaks should last, and define quiet hours when reminders are paused — making it adaptable for both focused work and creative sessions. EyeRest typically includes motivational or instructional content during breaks to reinforce good ergonomics, promoting reduced eye strain, improved focus, and overall wellness for anyone who spends extended periods at a computer.
    Downloads: 1 This Week
    Last Update:
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  • 5
    Steam Game Idler

    Steam Game Idler

    Farm Steam trading cards, manage achievements, and idle games

    Farm Steam trading cards, manage achievements, and idle games automatically — an all-in-one alternative to ArchiSteamFarm, Steam Achievement Manager, and Idle Master https://steamgameidler.com
    Downloads: 26 This Week
    Last Update:
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  • 6
    Notes Keeper

    Notes Keeper

    A program for saving and organizing notes

    Notes Keeper 5.2.3.0 Don't you like your notes to be saved in the clouds, where you can't control. Do you like to have all your notes with you. Then you need Notes Keeper. A program for saving and organizing notes Notes Keeper will let you create notes, format them in all ways. You can add files, images, text and very basic tables to the notes. Change sentences/words cases and lock them from other people. Organize your notes with folders and tree. After you finish export your note(s) to a text file or rtf file, print it from your printer, or send it as email or attachment to you family or friends. Its free. Not like any other note taking software. feel free to report any bugs .NET 4.6 and Microsoft Visual C++ 2015 Update 3 runtime are needed to run Notes Keeper
    Downloads: 10 This Week
    Last Update:
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  • 7
    WatchTheClock

    WatchTheClock

    Portable stopwatch and countdown timer for Windows

    Portable stopwatch, countdown timer and alarm clock for Windows (.NET 4.0 required). See features below. WatchTheClock Changeset: v0.6 ------------- alarm clock progress state for countdowns additional window title support mail address v0.5 ------------- start buttons are default -> clicked when enter is pressed navigation through tabs with CTRL + TAB is now working on startup input fields on countdown tab select all text on focus via keyboard; to select all via mouse double click v0.4 ------------- small layout changes, to make it look nice in windows 7 v0.3 ------------- added multiple icon sizes added some error handling if .NET is missing v0.2 ------------- bring window to front if countdown time is up v0.1 ------------- initial version If you like this tool, please donate. Visit http://www.informatik-pc.de/blog/watchtheclock
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    Downloads: 20 This Week
    Last Update:
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  • 8
    Notepad X
    Notepad X is an alternative open source text editor for Microsoft Windows, with a lot of customization options created to help users managing text documents featuring tab navigation.
    Downloads: 4 This Week
    Last Update:
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  • 9
    MiniMax Timer

    MiniMax Timer

    Customizable countdown timer

    The MiniMax Timer is a simple timer application which, for now, only counts downward. It has the following customizable features: - always on top - fullscreen - timer font, text color and background color - display a customizable text when the timer ends - timer's size and location - timer control shortcuts The settings (positions, colors, sizes) are automatically saved upon exiting the program.
    Downloads: 6 This Week
    Last Update:
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  • 10

    Star Spotify Alarm Clock

    This is a lightweight Windows application developed to use Spotify as

    What is this? Star Spotify Alarm Clock is a lightweight windows software to run Spotify, play the playlist/artist/album/track of your choise and smoothly fade in the computers volume in the amount of time you desire. Star Spotify Alarm Clock is completely open source, both source code and software and free to use, both for comercial and personal purposes. How do I use it? Just download the software from here unzip it into the folder of your choise and run "StarSpotifyAlarmClock.exe" to se witch attributes you need to send to the application. I also recomend you to create a Windows scheduled task that runs the software at your desired wakeup time and with the arguments needed.
    Downloads: 6 This Week
    Last Update:
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  • 11
    XFolder

    XFolder

    a modern file manager designed specifically for macOS

    XFolder is a modern file manager designed specifically for macOS. It integrates core features such as multi-pane views, a smart directory tree, and multi-tab management, aiming to provide a more efficient and flexible file browsing experience than Finder.
    Downloads: 6 This Week
    Last Update:
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  • 12
    SafeNotes - Encrypted Journaling

    SafeNotes - Encrypted Journaling

    SafeNotes - A encrypted and easy-to-use journaling application

    SafeNotes is an encrypted and user-friendly note-taking application designed to keep your personal notes and journal entries safe and organized. With SafeNotes, you can easily create, edit, and manage your notes, all while ensuring your data is protected through robust AES-256 encryption and password hashing. The app features a sleek and intuitive interface built with MaterialSkin, offering light and dark themes to suit your preferences. SafeNotes is perfect for anyone looking to keep their notes and journal entries secure and organized. Download SafeNotes today and experience the peace of mind of knowing your personal information is safe.
    Downloads: 3 This Week
    Last Update:
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  • 13
    Sleep#: Save Power. No More Noise!

    Sleep#: Save Power. No More Noise!

    Send computer to sleep after VLC, WMP, Google Play Movies & TV

    *** For the latest v5 with integrated YouTube Web (controllable with the YouTube app on your phone) please download from https://www.microsoft.com/en-gb/p/sleep/9ppgrg6t7dcj *** Do you use your computer for playback of films, streamed TV etc. before going to sleep? In these cases, Windows' sleep functionality is suspended and won't kick in once the video has finished. The solution for many is to use a sleep timer to send the computer to sleep after the estimated amount of time of the video. But you need to remember to do this every time. Sleep# handles this automatically: Sleep# sends your computer to sleep after the playback of fullscreen video, providing Windows has been idle for a predefined amount of time. There is a grace period at the end of the fullscreen video before sending your computer to sleep, allowing you to interrupt the process should you still be awake. Sleep# works with VLC media player, Windows Media Player, Google Play Movies & TV amongst others.
    Downloads: 1 This Week
    Last Update:
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  • 14
    Tea Timer is a virtual egg timer/alarm clock for Windows. Written in C#, it utilizes the .NET framework. Key features include: * Runs in tray. * Mulitple timers. * User defined presets. * Audible and visual alert. * Alarm mode. * Ability to pause timers.
    Downloads: 1 This Week
    Last Update:
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  • 15

    mypc

    show mypc tool

    the best pc tool
    Downloads: 3 This Week
    Last Update:
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  • 16
    A URL shorterner for ASP.NET / C# that works in the same way as TinyURL and bit.ly. Implemented as a ASPX page (for redirecting shortened URLs to their destination) and a Web Service (to be used as an API for creating / retrieving shortened URLs).
    Downloads: 1 This Week
    Last Update:
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  • 17
    Free Alarm Clock Windows

    Free Alarm Clock Windows

    Free Alarm Clock for Windows with Voice Alerts, Skins and Plugins

    Free Alarm Clock for Windows with Automatic Speech Synthesizer Voice overs on selected audio file for each alarm. Plugins are available to extend functionality of the alarm, like execute an application or send information over serial port. You can also write your own plugins using a simple C#/VB interface With over 10 different skins.
    Downloads: 2 This Week
    Last Update:
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  • 18
    StudA

    StudA

    A powerful student assistant program

    Downloads: 2 This Week
    Last Update:
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  • 19
    NeatShift

    NeatShift

    Advance File managing & relocating tool

    NeatShift is a Windows utility designed to solve a common problem: moving large applications, games, or folders to a different drive without breaking the shortcuts and application paths that depend on them. When a program is installed, its location is registered with the operating system. Simply moving the folder to a new drive will cause the program to stop working. NeatShift provides a robust solution by relocating the folder and then creating a Symbolic Link in its original place. This link is a powerful type of shortcut that is transparent to the operating system, redirecting any request from the old path to the new location seamlessly.
    Downloads: 1 This Week
    Last Update:
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  • 20
    Pinalka
    Application for a reminder of things.
    Downloads: 1 This Week
    Last Update:
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  • 21
    Notepad DaDa

    Notepad DaDa

    Application used to upload notes.

    Downloads: 1 This Week
    Last Update:
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  • 22
    RemindMe v1.0

    RemindMe v1.0

    Simple program that plays alarms to remind you of an event

    RemindMe is a small program which alerts you when one of your inputted events such as birthdays, assignments or deadlines, etc... has occurred. It has the ability to use custom alarms and can store as many events as you need. Can hide in the background so it does not get in the way.
    Downloads: 1 This Week
    Last Update:
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  • 23
    SBR - Simple Break Reminder
    Sitting at a computer for long periods of time brings with it significant health risks. Back and neck pain, carpal tunnel syndrome, eye strain, dry eye syndrome, shoulder and elbow pain, and more. In order to eliminate or at least significantly reduce these problems, it is necessary to take safety breaks when working with a PC. And here comes SBR - Simple Break Reminder - an application that will notify you that you have been sitting at a PC for too long and need to take a break. The application also has a simple ToDo manager for managing your tasks. Simple Break Reminder also supports the Pomodoro technique. Free software - free for any personal or commercial use.
    Downloads: 1 This Week
    Last Update:
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  • 24
    Alarm clock specifically made for students, allowing an alarm to be set for each day of the week. A random song from a list is played that is created by the user.
    Downloads: 1 This Week
    Last Update:
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  • 25
    NoteFly

    NoteFly

    A lightweight but advance note taking application

    A lightweight but advance note taking application written in C#.
    Downloads: 1 This Week
    Last Update:
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