Open Source C# PC Cleaners
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C# PC Cleaners
View 83 business solutionsBrowse free open source C# PC Cleaners and projects below. Use the toggles on the left to filter open source C# PC Cleaners by OS, license, language, programming language, and project status.
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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. -
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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. -
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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. -
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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. -
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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. -
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CrapFixer
Fixes the crap Windows leaves behind
CrapFixer is a lightweight Windows cleanup and tweaking toolbox aimed at removing or reducing the everyday “junk” Windows accumulates, while keeping changes understandable and reversible. It’s positioned as a fast, no-fluff utility that focuses on practical fixes rather than turning into an overstuffed “optimizer” suite. The workflow is deliberately simple: you analyze your system, review what’s flagged, and then apply recommended changes with a single action. It distinguishes between items that are recommended to fix and items that are already optimized, helping you avoid unnecessary changes. The project emphasizes safety by making most tweaks undoable, and it supports running with administrator privileges when deeper changes (like certain registry locations) are required. For users who want more clarity, it includes a help lookup per tweak and offers log review so you can understand what happened and share results for troubleshooting. -
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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. -
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Windows 11 Fixer
A tool to "Fix" Windows 11
Windows 11 Fixer is a community-oriented Windows utility intended to centralize a wide range of customization, cleanup, and configuration tasks for Windows 11 into one user-friendly interface. It gives users a single place to tweak visual components like the taskbar and File Explorer, adjust system settings including privacy and security options, and uninstall unwanted default software that many consider bloatware. In addition to settings adjustments, the tool can automate the removal of applications such as Cortana or Edge, and also offers options to install commonly used third-party applications directly from within its UI. The application emphasizes ease of use, pulling together many tweaks that would otherwise require manual registry edits or piecemeal scripts, and it typically shows reminders when a reboot or process restart is needed for changes to take effect. -
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Cleaner PRO
Simple Windows cleanup utility
Cleaner PRO is a universal utility for cleaning Windows. -
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Tasks
Tasks is an application that optimizes computer performance
Tasks is an application that improves computer performance. Tasks's main features include an advanced cleanup tool, a startup manager, and a detailed Task Manager. These tools help improve computer performance, system boot times, and ensures a faster experience while using your computer. We aim to make a lightweight, free, intuitive and responsive cleaning tool. We believe that computer performance is crucial to everyone and should not include any hidden paywalls inside the application. Our goal is to make a tool that anyone can use from anywhere. View detailed information about programs that run on start. (Name, Description, Directory) Create new programs that run on start. Remove malicious programs that run on start with one click. View detailed information about services that run on start. (Name, Service, Stopped or Running) Open the startup folder with one click. Clean and understandable interface to see all startup processes and services. -
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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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Multron Win Cleaner
A Community driven database based Windows Disk Cleaner With Utilities
MultronWcleaner is a free, open-source Windows cleaner and optimizer with no subscriptions or locked features. Its community-driven database.txt repository is updated through commits and Pull Requests. Cleanup: WinSxS (DISM), logs, dumps and age-filtered files, scheduled and startup cleaning, exceptions and Disk Cleanup presets. Malware Scan (Testing): cloud scan of processes, startup items and chosen folders with the viruskov.com OPEN-EDR engine, plus quarantine, Remove All Threats and right-click scanning. Only executables and scripts are sent by default. Security Check: finds insecure Windows settings and fixes them with one-click undo. System Health: DISM and SFC with clear result panels. Tools: Duplicate and Large File Finders, Memory Cleaner, Startup Manager, firewall rule cleaner, shortcut fixer, locked file unlock and boot operations. Also: 12 languages, dark/light themes, built-in updates, installer and portable versions. Users can request new features. -
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Sadeaner
Sadeaner is a good tool for cleaning up the PC
Sadeaner is a powerful and efficient tool for cleaning your PC. It offers a wide range of useful functions, such as the ability to remove unnecessary files and folders, free up valuable disk space, and improve the overall performance of your system. This makes it an excellent choice for gamers, as it can help to free up resources and improve the performance of games. Additionally, Sadeaner will also include advanced features such as a registry cleaner, startup manager, and browser cleaner, which can help to keep your system running smoothly and efficiently. -
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SpaceSharp
Open-source Windows disk space analyzer with interactive treemaps
SpaceSharp is a free, open-source disk space analyzer for Windows 10 and 11, inspired by SpaceMonger. It scans an entire drive or a selected folder and draws it as an interactive, zoomable treemap: every folder is a frame, every file a box sized by the space it uses, so the big things stand out at a glance. NTFS drives are read straight from the file table, so a million files take seconds. Features include a filter drawer with file types, size, age and presets, a panel showing space by type, places that are safe to clear and when files last changed, saved scans with a view of what changed since last time, fifteen palettes and adjustable shading with a live preview, dark and light themes with five looks each, size-on-disk measurement, hard-link detection, CSV export and a command line. Files can be opened in Explorer or sent to the Recycle Bin from the map. Portable and installable builds for 64-bit and 32-bit Windows. MIT License, actively developed on GitHub. -
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Merc-Clean-GUI
A Windows desktop application (WinForms) that provides a one-stop GUI
Features - Run All : Sequentially executes a full suite of scans and cleanups: 1. SFC (sfc /scannow) 2. DISM CheckHealth, ScanHealth, RestoreHealth 3. Clear temporary files, browser caches 4. Disk Cleanup 5. Drive optimization 6. DNS cache flush - Individual Maintenance Tasks: Each function—SFC, DISM, Clear Temp, etc.—is available as a separate button. - Kill Process : Allows you to cancel a currently running maintenance operation at any time, including stopping the entire “Run All” sequence. - Detailed Terminal Output: Displays real-time command output (stdout/stderr) in a terminal-like text box, so you can monitor progress and see any errors. Links & Credits - Quick buttons to open relevant websites or show credits. -
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Windows Debloater
Get rid of unnecessary applications that come with Windows!
Get rid of the unnecessary applications that come with Windows and use the performance tools! Supported Languages: English, Turkish, German, Russian SYSTEM REQUIREMENTS CPU: 1GHZ any CPU. RAM: 512MB or higher. OS: Windows 10 or newer operating system.(64Bit) Connection: 512 KBPS or faster Internet connection. -
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Tweakivo
Windows 10 & 11 tweaker for privacy, performance, and system settings
Tweakivo is a free, open-source Windows 10 and Windows 11 tweaking and configuration utility designed to make system management simpler and more transparent. The application analyzes supported Windows settings and provides recommendations for privacy, performance, startup behavior, and system cleanup. Each recommendation includes an explanation, allowing users to review and select changes before applying them. Tweakivo also provides tools for application management, desktop customization, Windows configuration, and system maintenance. Key features include: - Personalized Windows optimization recommendations - Privacy and diagnostic settings management - Startup and background activity controls - System cleanup and maintenance tools - Windows Explorer, taskbar, and desktop customization - Application installation and removal - Reusable Windows configuration profiles - Windows installation and deployment utilities Tweakivo is free to use and released under the GNU G -
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Super Cleaner Plus
Analyze, clean, diagnose, and benchmark Windows drives safely.
Super Cleaner Plus 6.0 shows what is using space on Windows 10 and 11. Scan a whole drive or folder; scans do not modify files and create a local index of names and properties. Reports separate regenerable caches (SAFE), files you choose by size, type, date, or duplicates (CUSTOM), and system, program, or personal data requiring extra care (CRITICAL). Project-aware analysis identifies build caches and uses available activity signals to help protect active work. Before deletion, files are reviewed and rechecked; protected, changed, in-use, linked, and online-only files are skipped. The app also inventories installed programs and offers a backed-up uninstall workflow for eligible desktop apps. LIFE checks available drive health data and temperatures; DIAGNOSE reads NTFS, FAT, and exFAT structures, with CHKDSK repair only after confirmation; BENCH measures sequential and random speed, IOPS, and latency. Standalone 64-bit app; no separate .NET installation required. -
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WinHubX
WinhubX
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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
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OptiBoot
Lightweight PC tool for startups, services, and hardware info
About "A lightweight PC utility that lets you easily manage startup applications, control system services, and view detailed hardware information—all in one place." NOTE: .NET Core 8 must be installed. -
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Razer Cortex
Automatically streamline your PC’s performance
Automatically streamline your PC’s performance and visuals for supported games, thanks to an advanced AI with a machine-learning algorithm that calculates the best settings based on your preferences. Take your PC optimization one step further with a one-stop solution that automatically detect and delete junk files to free up space. Get more bang for your buck with a price comparison engine that scans top digital PC game stores to compile the best prices, as you join frequent giveaways for a chance to score new games and Razer gear. Explore our fan-favorite rewards program that lets you earn Razer Silver while gaming on your PC—loyalty points you can use to redeem a variety of exciting rewards such as Razer gear, games, and more. -
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Sylph Cleaner
Registry cleaner and uninstaller
Sylph Syndicate has launched a registry cleaner and uninstaller for terminal. Less processing. Quicker responses. -
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CleanerX
CleanerX for Gaming, Windows Optimizer
Open source optimization program for Windows. -
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Little Registry Optimizer
Compact the Windows Registry
Little Registry Optimizer is a part of Little Apps` Little Registry Cleaner. This project is aimed to analyze the windows registry and optimize it so it will be smaller and run smoother. This program is licensed under the GNU General Public License.
