Open Source Windows Productivity Software
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Productivity Software for Windows
View 520 business solutionsBrowse free open source Productivity software and projects for Windows below. Use the toggles on the left to filter open source Productivity software by OS, license, language, programming language, and project status.
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Ship Agents FasterGemini Enterprise Agent Platform lets you rapidly build, scale, govern and optimize production-ready agents grounded in your organization's data. The platform enables developers to build custom or pre-built agents for virtually any use case. New customers get $300 in free credits.
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Enterprise-grade ITSM, for every businessFreshservice is an intuitive, AI-powered platform that helps IT, operations, and business teams deliver exceptional service without the usual complexity. Automate repetitive tasks, resolve issues faster, and provide seamless support across the organization. From managing incidents and assets to driving smarter decisions, Freshservice makes it easy to stay efficient and scale with confidence.
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Obsidian
Community plugins list, theme list, and releases of Obsidian
The Obsidian Releases repository provides the official distribution builds and installers for Obsidian, the popular markdown-based knowledge management and personal wiki application. Obsidian itself is a powerful, offline-first note-taking tool that helps users build interconnected knowledge graphs using markdown files stored locally on their devices, with plugins and community themes for extensibility. This repository houses versioned compiled binaries and packages for multiple platforms such as Windows, macOS, and Linux, enabling users to download stable or nightly builds directly without needing to build the app from source. By maintaining clear version history and downloadable artifacts, it makes it easy for individuals and organizations to audit, rollback, or pin specific Obsidian releases for workflows that depend on stability or particular plugin compatibility. -
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Digital Clock 4
beautiful customizable clock with plugins
Very customizable beautiful clock. There are 2 versions exist (they may co-exist): - Digital Clock 4 - discontinued, not recommended - Digital Clock 5 - discontinued, replacement for Digital Clock 4 Digital Clock 4 final version is 4.7.9 Digital Clock 5 final version is 5.2.2 Nothing special is required to start using this clock. Just launch it and enjoy! When it starts, apart from the clock itself, a small tray icon appears. This tray icon can be used to call the clock configuration dialog. Also this dialog can be called using clock context menu. Sources (v5) are hosted on GitHub: https://github.com/Kolcha/DigitalClock5 You can create your own skin! See this link for details: https://sourceforge.net/p/digitalclock4/wiki/How%20to%20create%20skin/ NOTE: do NOT download any .rar or .exe files marked as my software, these files are NOT made by me and I'm not responsible for their content -
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Deskflow
Share a single keyboard and mouse between multiple computers
Deskflow is a lightweight productivity tool designed to streamline window and workspace management. It features hotkey-driven app launching, workspace switching, window snapping, search快捷启动, and minimal UI. Built with modern frameworks (likely Electron or Qt) and geared toward power users wanting efficient workflow control. -
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A simple notepad-like text editor with many features. It is designed to be a small and fast.
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Notepad Next
A cross-platform, reimplementation of Notepad++
A cross-platform, reimplementation of Notepad++. Though the application overall is stable and usable, it should not be considered safe for critically important work. There are numerous bugs and half-working implementations. Pull requests are greatly appreciated. Windows packages are available as an installer or a stand-alone zip file on the release page. The installer provides additional components such as an auto-updater and Windows context menu integration. -
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Gnaural
Entrain your brain!
A programmable audio generator intended as an aural aid to meditation, implementing the binaural beat principle as described in Gerald Oster's Oct. 1973 Scientific American article "Auditory Beats in the Brain." -
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Joplin
Open source note taking and to-do app with synchronization
Joplin is a free and open source note-taking and to-do application that can handle a large number of notes in Markdown format, organize them into notebooks and synchronize them with various cloud services. All notes can also be copied, tagged, searched and modified directly from the app or through your own text editor. Notes that are exported from Evernote can be imported into Joplin, be it formatted content, resources, complete metadata or plain Markdown files. When notes are synchronized with cloud services, notebooks, tags and other metadata can easily be moved, inspected or backed up as plain text files. Supported cloud services include Nextcloud, OneDrive, Dropbox and WebDAV. Joplin is available for Windows, Linux, macOS, iOS and Android, with three types: desktop, mobile and terminal. All of them have similar user interfaces and can be synchronized with each other. -
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Open Notebook
An Open Source implementation of Notebook LM with more flexibility
Open Notebook is an open-source, privacy-focused alternative to Google’s Notebook LM that gives users full control over their research and AI workflows. Designed to be self-hosted, it ensures complete data sovereignty by keeping your content local or within your own infrastructure. The platform supports 16+ AI providers—including OpenAI, Anthropic, Ollama, Google, and LM Studio—allowing flexible model choice and cost optimization. Open Notebook enables users to organize and analyze multi-modal content such as PDFs, videos, audio files, web pages, and Office documents. It combines full-text and vector search with context-aware AI chat to deliver insights grounded in your own research materials. With advanced features like multi-speaker podcast generation, customizable content transformations, and a comprehensive REST API, Open Notebook provides a powerful and extensible research environment. -
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ShareX
Screen capture, file sharing and productivity tool
ShareX is a lightweight free and open source program that allows you to capture or record any area of your screen and share it with a single press of a key. ShareX offers numerous methods of capture including full screen, monitor, freehand and so much more. It also features plenty of customizable after-capture tasks and supports more than 80 different image, text, and file hosting services, as well as many URL shortening and sharing services. -
Error to trace to log to deploy. One click. No SSH.AppSignal links every error to the trace, the trace to the log, the log to the deploy that shipped it.
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Xournal++
A handwriting notetaking software with PDF annotation support
Xournal++ (/ˌzɚnl̟ˌplʌsˈplʌs/) is an open-source and cross-platform note-taking software that is fast, flexible, and functional. A modern rewrite and a more feature-rich version of the wonderful Xournal program. Support for pressure-sensitive stylus and drawing tablets (Wacom, Huion, XP-Pen, etc.) Robust and customizable pen, highlighter and eraser tools, allowing you to write how you want to write. Use layers to make complex notes that are still pleasant to work with. Keep track of the notes by using page previews. Add images and create various shapes, from circles to splines to axis. Snap objects to rectangular grid or degrees of rotation. Create anything from differential equations to electrical circuits or the structural formula of molecules using our built-in LaTeX editor. Customize your toolbar to create a new layout, tailor-made for you. -
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Stretchly
The break time reminder app
Stretchly is a cross-platform open-source app that reminds you to take breaks when working on your computer. When you run Stretchly for the first time, you are presented with a Welcome window that allows you to change the language, review the preferences, view the online tutorial or simply continue with the default preferences. Stretchly itself lives in your tray, only displaying a reminder window from time to time, which contains an idea for a break. By default, there is a 20 second Mini Break every 10 minutes and a 5 minute Long Break every 30 minutes (after 2 Mini Breaks). You'll be notified 10 seconds before a Mini Break (and 30 seconds before a Long Break) so that you can prepare to pause your work. When a break starts, you can postpone it once for 2 minutes (Mini Breaks) or 5 minutes (Long Breaks). Then, after a specific time interval passes, you can skip the break. Both actions are available by clicking on the link at the bottom of window. -
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Alfresco Community Edition
Open Source Enterprise Content Management ECM
The open source Enterprise Content Management (ECM) software that handles any type of content, allowing users to easily share and collaborate on content. -
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QOwnNotes
QOwnNotes is a plain-text file notepad and todo-list manager
QOwnNotes is a fully open-source markdown-focused note-taking and personal information manager that runs natively on Linux, macOS, and Windows, with a strong emphasis on plain-text storage and cross-device synchronization. Because all notes are stored as markdown files in user-controlled directories, you avoid vendor lock-in and can sync through services like Nextcloud, ownCloud, Dropbox, or Git without proprietary cloud dependency. The application is optimized for performance and minimal footprint, so it runs smoothly even with large note libraries, and it includes features like a live markdown preview panel that lets you see rendered text alongside raw markdown as you type. QOwnNotes supports hierarchical folders and tagging, making it easy to organize, filter, and retrieve information quickly, and it also integrates to-do lists and task markers directly in your notes. -
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sigma-file-manager
"Sigma File Manager" is a free, open-source, quickly evolving app
"Sigma File Manager" is a free, open-source, quickly evolving, modern file manager (explorer/finder) app for Windows and Linux. Designed, developed, and maintained by Aleksey Hoffman | Twitter | Reddit. Create the best existing intelligent file manager & productivity app that will significantly speed up your workflow, provide you with advanced tools, and keep your data safe. Find any file/directory on your computer in just a few seconds. It also implements a typo correction system, allowing you to find files even when the search query includes typos, wrong case, wrong word order, missing words, missing symbols, and missing file extension. Create separate workspaces with their own tabs and pre-defined actions, allowing you to quickly switch between them. Actions can perform different operations, e.g. open a website, run a script, open a file in a specific program, etc. -
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Lorien
Infinite canvas drawing/whiteboarding app
Lorien is a fast, lightweight infinite-canvas drawing and note-taking application designed for brainstorming, sketching, and freeform diagramming without the bloat of traditional bitmap editors. Instead of storing raster image data, Lorien saves each brush stroke as vector-like points and reconstructs drawings at runtime, resulting in extremely small save files and smooth performance even on large canvases. The app runs on Windows, macOS, and Linux, and it’s built using the Godot game engine, which gives it a responsive and modern user interface across platforms. Users get features like infinite zoom, undo/redo, and a grid that stretches endlessly, making it well suited to both quick scribbles and detailed conceptual layouts. Lorien supports pressure-sensitive tablets for natural drawing, and it includes a range of basic tools — from freehand brush and eraser to shapes and selection tools — so you can mix freeform sketches with structured diagrams. -
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TagSpaces
TagSpaces is an offline, open source, document manager with tagging
TagSpaces is a free, no vendor lock-in, open source application for organizing, annotating and managing local files with the help of tags. It features advanced note taking functionalities and some capabilities of to-do apps. The application is available for Windows, Linux, Mac OS and Android. We provide a web clipper extension for Firefox, Edge and Chrome for easy collecting of online content in the form of local files. File and folder management - TagSpaces provides a convenient user interface for browsing, viewing and man files and folders. The application supports two ways for tagging files. The default one embeds the tags directly in the name of the file, the other one uses a so called sidecar files for persisting the tags. The search functionality supports fuzzy functionality and can filter your locations for files and folders containing one or more tags. -
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wger
Self hosted FLOSS fitness/workout, nutrition and weight tracker
wger Workout Manager is a free and open web application that manages your exercises, routines and nutrition. It started out as a personal project to replace my growing collection of spreadsheets but has turned into something that other people may find useful. You can create and manage flexible training routines for whatever goals you have. Select exactly what exercises you are going to do and how many repetitions, time or distance you want to do. You can also combine different workouts in the same program. Create your personal diet plan by creating as many meals with as many different ingredients as you need. The application will calculate the nutritional values (total energy, proteins, carbohydrates, etc.) of the entire plan and of each of the meals. Enter the weights and reps you've done for each exercise to generate diagrams that let you see at a glance how well you're doing. Of course, the raw numbers are still accessible. -
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MindZJ
An open-source, offline note-taking app with native AI & CLI
MindZJ is a knowledge management and idea organization tool designed to help users structure, connect, and visualize information in a meaningful way. It focuses on enabling users to create and manage interconnected notes, forming a network of ideas that can evolve over time. The system provides tools for organizing thoughts, tracking relationships between concepts, and building a personal knowledge base. It is particularly useful for research, learning, and creative workflows where capturing and linking ideas is essential. The platform emphasizes simplicity and clarity, offering a clean interface that minimizes distractions while supporting complex knowledge structures. It also supports extensibility, allowing users to adapt the system to their specific needs and workflows. Overall, mindzj serves as a flexible environment for building and navigating structured knowledge systems. -
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Notesnook
A fully open source & end-to-end encrypted note taking alternative
Notesnook makes it impossible for anyone to spy on your notes. Unlike Evernote and other note taking apps, your data is private, not open for everyone to see. Ditch other note taking apps that don't care about your data privacy. With app lock and private notes vault, your personal diary & journal are always safe. Worried that your friend will read your private notes? Notesnook fixes that by having an app lock built-in. Use a pin or biometrics to protect your notes. Protect your online journal or personal diary with an extra layer of security. Your notes vault is a super secure way to store your passwords, credentials & other secrets. Free or Pro, you get the same level of privacy. Making privacy a paid feature means only the privileged few deserve it but privacy is your right. And rights don't have a price tag, or do they? To verify that your notes are actually encrypted (and we aren't just lying), you can use our open source tool, Vericrypt. -
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Makagiga
To-do manager, notepad, RSS reader...
Makagiga is an open-source, easy-to-use, portable application for doing a variety of tasks, such as todo listing, text editing, or RSS reading. Plugins are used to implement its various capabilities. -
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Old Win32 Notepad
Old Windows Notepad remake
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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). -
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Shlink
The definitive self-hosted URL shortener
Shlink is an open-source URL shortener and link management tool. It provides features for creating short, trackable URLs with detailed analytics on click statistics. Shlink is self-hosted, giving users control over their shortened links and data privacy. It supports custom domains, QR code generation, and integration with third-party services for advanced tracking and management. -
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UVdesk Open Source
Build and make a full ticketing support system
Uvdesk community helpdesk project skeleton packaged along with the bare essential utilities and tools to build and customize your own helpdesk solutions. Build on top of Symfony and backbone.js, UVdesk community is a service-oriented, event-driven extensible open-source helpdesk system that can be used by your organization to provide efficient support to your clients effortlessly whichever way you imagine. At the heart of the helpdesk system, the core framework consists of all the necessary APIs required by your project and dependent packages to keep things running smoothly. Integrate multiple marketplaces with UVdesk to support your valuable customer. Bridge the gap between eCommerce store and customer to respond faster. Design your website front office forms at your convenience. Configure multiple email service providers with one platform to provide all-around support. -
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WebStackPage
Static responsive URL navigation website - webstack.cc
WebStack is an open source website navigation project created and maintained by the community. The front end is built using the Bootstrap framework, while multiple backend implementations and theme versions are contributed by different developers. The goal of the project is to provide a flexible, customizable navigation website template that anyone can use to create their own resource hub, bookmark collection, or even unrelated websites beyond navigation.
