The best free alternative to OnyX is CCleaner. If that doesn't suit you, our users have ranked more than 50 alternatives to OnyX and many of them is free so hopefully you can find a suitable replacement. Other interesting free alternatives to OnyX are Mole, Outbyte PC Repair, TinkerTool and Toolwiz Care.
Enhances system performance by clearing unused files, optimizing registries, speeding up boot times, and updating drivers. It safeguards privacy via auto cleanup of cookies and browser history, freeing disk space with file cleanup, duplicate detection, and efficient startup management.
Open source Mac command line utility integrating disk cleanup, deep app uninstallation with artifact removal, disk analysis, optimization tasks, and a live terminal dashboard for real-time CPU, GPU, memory, disk, and network monitoring with interactive options.
Outbyte PC Repair enhances performance by fixing system issues, removing unnecessary background processes, and managing vulnerabilities. It maintains hard drive health, protects privacy by eliminating tracking cookies and unwanted apps, and includes a File Shredder tool for secure deletion.
TinkerTool is an application that gives you access to additional preference settings Apple has built into Mac OS X. This allows to activate hidden features in the operating system and in some of the applications delivered with the system.
Toolwiz Care is a free tool set designed to speed up your PC and give your system full care. With multi-functional optimization suite, this software provides a collection of tools that includes System Checkup, System Cleanup, System Speedup, System Virtualization and 40+...
Mobile Doctor let you easily to manage your phone at any time, including the following major features:
FastTasks 2 provides a number of useful functions, including at-a-glance display of key system info, fast toggle of invisible files, free memory, automatic removal of login items, and scanning for troublesome apps and files.
MacReviver includes all of the essential tools to help you clean, optimize and maintain your Mac and restore its performance and stability. Find your stolen Mac Would you like to protect your Mac in case of theft? MacReviver has the answer.
Eliminates web history, cookies, and temp files from Windows, frees up disk space, securely shreds sensitive data, repairs common system errors, enhances privacy, automates cleaning, and supports multiple browsers for ongoing performance optimization.
Clean Sweep is the ultimate app designed to simplify and optimize your digital life. With its powerful features and user-friendly interface, Clean Sweep empowers you to effortlessly tackle common digital clutter challenges:
ASCOMP Cleaning Suite: Free your system from unnecessary data with a total of six efficient cleaning tools.
Click&Clean is a free, fast and easy-to-use extension for Google Chrome and Mozilla Firefox that can be used as a powerful private data Cleaner.
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