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Open Source Windows PC Optimizers

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Browse free open source PC Optimizers and projects for Windows below. Use the toggles on the left to filter open source PC Optimizers by OS, license, language, programming language, and project status.

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  • 1
    WinUtil

    WinUtil

    Chris Titus Tech's Windows Utility - Install Programs, Tweaks, Fixes

    WinUtil by Chris Titus Tech is a comprehensive Windows utility script designed to automate system maintenance, streamline software installations, and apply performance tweaks. It focuses on debloating Windows, fixing update issues, and configuring various system optimizations to enhance user experience. The tool requires running PowerShell with administrator privileges to perform system-wide changes safely and effectively. WinUtil is modular and maintained as multiple scripts compiled into a single executable PowerShell script for ease of use and development. It offers a robust developer workflow with clear contribution guidelines and an active Discord community for support. The project prioritizes clean, efficient code and careful review of contributions to maintain stability. WinUtil is widely popular with thousands of stars and contributors, reflecting its reliability and usefulness in Windows system management.
    1 Review
    Downloads: 377 This Week
    Last Update:
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  • 2
    Tiny 11 Releases

    Tiny 11 Releases

    Automated tools for creating streamlined Windows 11 images with CI/CD.

    Tiny11 Automated Builder: Build Tiny11, Build Tiny11 Core and Build Nano11 Automated tools for creating streamlined Windows 11 images with CI/CD support. 📋 Overview Tiny11 Automated Builder provides PowerShell scripts to create minimized Windows 11 ISO images by removing bloatware, disabling telemetry, and optimizing system components.
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    Downloads: 6,357 This Week
    Last Update:
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  • 3
    GTweak

    GTweak

    Portable Tool for an Ideal Windows Setup

    GTweak is a Windows optimization and customization utility designed to give users deep control over system behavior, privacy, and performance. It provides a wide range of tools to disable unnecessary services, reduce telemetry, and streamline the operating system for better efficiency. The software allows users to modify system settings that are typically hidden or difficult to access, making advanced tweaks more accessible. GTweak also includes features for removing pre-installed apps, managing updates, and customizing the Windows interface. It is particularly focused on privacy, enabling users to disable tracking, data collection, and background services from Microsoft and third parties. Overall, GTweak serves as an all-in-one toolkit for debloating, securing, and optimizing Windows environments.
    Downloads: 102 This Week
    Last Update:
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  • 4
    Hellzerg Optimizer

    Hellzerg Optimizer

    The finest Windows Optimizer

    Advanced configuration utility that helps you restore your privacy and increase your security. Optimizer is recommended after a fresh, clean installation of Windows to achieve maximum privacy and security. Depending on your version of Windows, Optimizer will also allow you to perform some specific tweaks.
    2 Reviews
    Downloads: 102 This Week
    Last Update:
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  • 5
    Temp_Cleaner GUI

    Temp_Cleaner GUI

    A free and open-source program to free up disk space

    While most of us tend to ignore them, the truth is that browser history, cookies and cache take quite a lot of space on the disk. Deleting them does not only help you gain storage space, but it can also speed up the PC. Temp_Cleaner GUI Project is a simple and straightforward utility that enables you to clean your Windows-based computer of junk and obsolete files. The app comes with a single-window interface packed with a huge list of options. As you probably hinted, all you need to do is select the areas where you prefer the app to clean temporary files. In addition to browsers, the app also includes directories that are generally skipped when doing maintenance on the PC, such as Systemdrive Recycle Bin, Windir, Windows 10 Modern Application Cached data, Action Center, Notification Center Cached data, or Icon Cache file in the Local app data folder, just to name a few. At the same time. ⚠ Attention existing users: Please update your copy of Temp_Cleaner GUI to latest version!
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    Downloads: 1,296 This Week
    Last Update:
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  • 6
    RyTuneX

    RyTuneX

    RyTuneX is a cutting-edge optimizer built with the WinUI 3 framework

    RyTuneX is a comprehensive Windows-system optimization tool aimed at users who want to enhance performance, privacy and usability on systems running Windows 10 (20H1 +) and Windows 11. It is built using the WinUI 3 framework and .NET 8 to provide a modern, responsive interface and native Windows look and feel. The application lets users “debloat” their system by removing pre-installed apps and Windows features that may be unnecessary or resource-heavy, helping free up resources and storage. It also offers system tweaks to improve responsiveness, reduce background overhead, and optimize system settings for gaming or heavy usage workflows. Privacy enhancements are part of its core offering: toggles for telemetry, data-collection features, background apps and more give users greater control over what their OS is tracking or doing under the hood.
    Downloads: 45 This Week
    Last Update:
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  • 7
    optimizerDuck

    optimizerDuck

    Free, open-source Windows optimization tool for performance

    optimizerDuck is a free, open-source Windows optimization tool focused on performance, privacy, and simplicity. It gives users a single interface for applying researched Windows tweaks without manually editing the registry, services, scheduled tasks, or system settings. The tool targets common sources of overhead, including telemetry, unwanted background services, preinstalled app behavior, conservative power settings, and latency-related defaults. It includes performance, privacy, GPU, power, bloatware, service, and user-experience optimizations with descriptions and risk ratings. optimizerDuck runs as a single executable with no installer, and it includes backup and revert systems for safer experimentation. It is most useful for Windows users who want a guided way to debloat, tune, and reverse system changes from one place.
    Downloads: 40 This Week
    Last Update:
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  • 8
    Windows Memory Cleaner (WMC)

    Windows Memory Cleaner (WMC)

    Free RAM cleaner uses native Windows features to optimize memory areas

    Windows Memory Cleaner (aka WMC or WinMemoryCleaner) is a lightweight, portable Windows utility designed to optimize system memory using native Windows API functions. It provides a transparent and user-friendly interface for freeing up RAM that is often held unnecessarily by cached data or inefficient processes. Unlike many “RAM booster” tools, it relies entirely on documented system methods rather than hidden tricks or unsafe optimizations. The application can automatically clean memory based on time intervals or when available RAM drops below a defined threshold. It also supports both GUI usage and command-line automation, making it suitable for everyday users and advanced workflows alike. Overall, WinMemoryCleaner focuses on improving system responsiveness and performance, especially on machines with limited memory resources.
    Downloads: 34 This Week
    Last Update:
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  • 9
    ET-Optimizer

    ET-Optimizer

    ET is a powerful application to improve performance

    ET-Optimizer is a performance optimization tool designed to enhance system responsiveness and efficiency by applying targeted configurations and tweaks to operating system settings and background processes. It focuses on improving performance in specific use cases such as gaming or real-time applications where latency and system overhead are critical factors. The tool typically includes scripts or automated routines that adjust system parameters, disable unnecessary services, and optimize resource allocation. It is designed for users who want to fine-tune their environment without manually modifying numerous system settings. The project emphasizes ease of use by bundling optimizations into a streamlined workflow that can be applied quickly. It also serves as a reference for understanding how different system configurations impact performance.
    Downloads: 21 This Week
    Last Update:
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  • 10
    SpeedFan

    SpeedFan

    SpeedFan is an advanced system monitoring tool

    SpeedFan lets you take a deeper view at the status of your computer. Almost every computer includes support for hardware monitoring. Accessing digital temperature sensors is really useful. If you are trying to figure out why your PC hangs when under heavy load or after some hours of usage, SpeedFan might help you find the real cause. Very often it is a poor power supply, or an improperly installed heatsink that lead to behaviours that we tend to associate (incorrectly) with errors from the operating system. SpeedFan automatically searches your computer for informative chips: the hardware monitor chips. SpeedFan can display voltages, fan speeds and temperatures. On rare occasions, the BIOS doesn't activate such features. SpeedFan tries to enable them as long as this is a safe thing to do. Not only the motherboard is searched, but also some video cards and almost every currently sold hard disk. SpeedFan can access status info from EIDE, SATA and even SCSI drives
    1 Review
    Downloads: 283 This Week
    Last Update:
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  • 11
    Mem Reduct

    Mem Reduct

    Mem Reduct is a lightweight tool to monitor and optimize PC memory

    Mem Reduct utility – a real-time memory management tool designed to monitor and optimize system memory usage on your computer
    1 Review
    Downloads: 256 This Week
    Last Update:
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  • 12
    Sparkle

    Sparkle

    A Windows app to debloat and optimize your PC

    Sparkle is a Windows application that helps you remove Microsoft bloat and apply tweaks, such as disabling telemetry, turning off Copilot, applying NVIDIA optimizations for gaming, and removing OneDrive. It also includes a built-in Winget and Chocolatey app installer, with new apps added frequently. Sparkle features a Utilities page where you can run Disk Cleanup, view your system information, or restart your graphics drivers. SUPPORT THE DEVELOPER: https://buymeacoffee.com/dogecraft
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    1 Review
    Downloads: 241 This Week
    Last Update:
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  • 13
    MSI Afterburner

    MSI Afterburner

    MSI Afterburner: Overclock, monitor, and optimize your GPU.

    MSI Afterburner is the world's most recognized and widely used graphics card overclocking utility. It provides a comprehensive suite of tools for gamers and PC enthusiasts to enhance their graphics card's performance and monitor its health. With MSI Afterburner, users can overclock their GPU to achieve higher frame rates in games, undervolt to reduce power consumption and heat, and customize fan curves for optimal cooling. The software also includes an on-screen display (OSD) feature that overlays real-time statistics directly onto games, allowing users to keep track of their system's performance without minimizing their applications. Furthermore, MSI Afterburner supports video recording, enabling users to capture their gameplay or overclocking sessions with ease. Its compatibility with all major graphics card brands makes it an indispensable tool for anyone looking to push their hardware to the limit.
    Downloads: 235 This Week
    Last Update:
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  • 14
    CCleaner

    CCleaner

    Clean up, speed up, and optimize your PC

    CCleaner is a trusted PC optimization tool for Windows or Mac designed to clean, speed up, and secure your computer. It removes junk files, temporary data, and broken settings that slow down system performance over time. The software includes powerful modules like Performance Optimizer, Driver Updater, and Cloud Drive Cleaner, helping you reclaim storage space and improve efficiency. With a simple interface, it provides one-click solutions for beginners while also offering advanced features for power users. CCleaner enhances privacy by deleting browsing traces, cookies, and trackers across major web browsers. Backed by over 20 years of experience and trusted by millions worldwide, it remains one of the leading tools for maintaining a faster and healthier PC.
    1 Review
    Downloads: 119 This Week
    Last Update:
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  • 15
    Roblox Ping Optimizer

    Roblox Ping Optimizer

    Roblox Ping Optimizer ping, safe & clean, no exploits. Enhance!

    🚀 Roblox Ping Optimizer- Created by Akash Siddique! 🎮 🔥 Fresh Update: Sleek New Modern UI! ⚡ Boost Your Gameplay Experience! Elevate your Roblox sessions with ultra-fast responses and optimized performance. Conquer the virtual world smoother and faster than ever. Join the revolution and take your gaming to the next level! 🌟 Why Choose Roblox Ping Booster? Unleash your gaming potential with just one click! 🚀
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    Downloads: 170 This Week
    Last Update:
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  • 16
    Performance Maintainer

    Performance Maintainer

    cleans registry, cleanup disk, defrag drive

    Performance Maintainer has combined open source tools such as Little Registry Cleaner, Bleachbit and Ultradefrag that run periodically for PC maintenance and performance. It is very simple and automated 1.Little Registry Cleaner Scan and Cleans the registry, 2.Bleachbit Performs Disk Cleanup 3. Ultradefrag defragments System Drive. The Programs also allows to install additional tools for tweaking and better performance. The installer schedules the program to run according to your requirement. Requires .NET Framework 3.5 sp1.
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    3 Reviews
    Downloads: 44 This Week
    Last Update:
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  • 17
    GameMode

    GameMode

    Optimise Linux system performance on demand

    GameMode is a daemon/lib combo for Linux that allows games to request a set of optimizations be temporarily applied to the host OS and/or a game process. GameMode was designed primarily as a stop-gap solution to problems with the Intel and AMD CPU power save or on-demand governors but is now host to a range of optimization features and configurations.
    Downloads: 5 This Week
    Last Update:
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  • 18
    auto-cpufreq

    auto-cpufreq

    Automatic CPU speed & power optimizer for Linux

    Automatic CPU speed & power optimizer for Linux. Actively monitors laptop battery state, CPU usage, CPU temperature, and system load, ultimately allowing you to improve battery life without making any compromises.
    Downloads: 2 This Week
    Last Update:
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  • 19
    Windows Native Maintenance Tools
    Windows System Maintenance Tool is an application designed to assist users in performing system maintenance on Windows platforms. A comprehensive, modern Windows 11 maintenance application built with .NET 10.0 and WPF, featuring an elegant Material Design interface. This tool provides system administrators and power users with easy access to essential Windows maintenance and optimization features.
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    Downloads: 37 This Week
    Last Update:
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  • 20
    Little Registry Cleaner
    Little Registry Cleaner is an open source program designed for Microsoft's Windows Registry. Its purpose is to remove obsolete or unwanted items that build up in the registry over time in order to improve the stability & performance of your computer
    6 Reviews
    Downloads: 10 This Week
    Last Update:
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  • 21
    PWin11 Tweaker

    PWin11 Tweaker

    Tweaker for Windows 11

    PWin11 Tweaker is a lightweight, open-source utility that allows you to tweak various aspects of Windows 11 without delving into complex system settings or third-party software. With a focus on performance optimization, system cleanup, privacy protection, and interface customization, this tool simplifies the process of tailoring your OS to your specific needs. The intuitive navigation and responsive design make it accessible to everyone, while advanced options cater to tech enthusiasts.
    Downloads: 33 This Week
    Last Update:
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  • 22
    Reg Organizer

    Reg Organizer

    Maintenance, Cleanup and Optimization for Windows

    Reg Organizer is a comprehensive system optimization tool designed to streamline and enhance the performance of Windows PCs. It combines a variety of utilities to clean, repair, and optimize the Windows registry, manage startup programs, and free up disk space. Reg Organizer empowers users to fine-tune their system settings, improve boot times, and identify unnecessary files and programs, ensuring a faster and more efficient computer. With its intuitive interface and powerful features, it is a reliable choice for users looking to maintain a clean, stable, and high-performing system.
    1 Review
    Downloads: 15 This Week
    Last Update:
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  • 23

    Windows 7 Booster

    Boost your Windows 7 with only few clicks !

    Version 1.6 Brings new Design, many fixes and almost 50% reduction in CPU consumption. Lightweight and portable application that beginners and advanced users may tinker with to tweak system settings and improve overall performance. Protect your online privacy and keep your computer secure. A single file that can easily be transferred To boost any PC at will, with low CPU and RAM consumption. - Clean Up your PC Clean all your unnecessary files that will hog your system over time. Temporary files, Windows Cache, Error reports, Old Prefetched Data, Crash Dumps, Recent Files, Software Distribution, Recycle Bin, Font Cache, Memory Dumps, Mini Memory Dumps.Chrome, Firefox, Maxthon, Opera, Internet Explorer supported. - Turn Off Unnecessary Windows Servers - Tweak Your Windows For Best Performance - 100% Spyware FREE Windows 7 Booster does NOT contain any Spyware, Adware, Viruses or even Advertisement.
    3 Reviews
    Downloads: 5 This Week
    Last Update:
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  • 24
    WinHubX

    WinHubX

    WinhubX

    Downloads: 10 This Week
    Last Update:
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  • 25

    Thunderbird Cleaner

    Thunderbird Cleaner: Your System’s Junk and Registry Specialist

    Thunderbird Cleaner v2.3 is a high-performance system optimization suite designed to revitalize your Windows experience. Engineered for speed and security, it provides a comprehensive solution to the common slowdowns caused by digital clutter. At its core, the Smart Cleaner engine performs deep-tissue scans across your OS, targeting redundant system logs, temporary files, and hidden browser caches from Google Chrome, Edge, Firefox, Brave, and Opera. Beyond simple deletion, Thunderbird features a dedicated Performance Dashboard that offers real-time monitoring of CPU and RAM health. The integrated Registry Optimizer safely identifies and removes obsolete entries, preventing system crashes and improving boot times. For power users, the Advanced Settings menu provides granular control over deep data recovery and AI-driven decryption logic.
    1 Review
    Downloads: 5 This Week
    Last Update:
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