Trusted by over 500 million users worldwide. Free download for Windows, Mac, iOS and Android across the United States. Detects and removes malware, ransomware and spyware — with real-time protection that recognizes threats before they run.
Blocks malware, ransomware and spyware before they can run — recognizing new threats by behavior, not just signatures.
Behavior-based AI detects and stops ransomware mid-encryption, including unknown strains.
Free extension blocks malicious websites, scams and trackers in Chrome, Edge and Firefox.
Detects and blocks fraudulent calls and texts in real time on iOS and Android — built to fight scams targeting US consumers.
Finds rootkits and deep-seated malware that other antivirus tools miss.
Download and scan at no cost. Premium adds always-on real-time protection from a low monthly price in USD.
Click the button above to download the official MBSetup installer from Malwarebytes' servers.
Double-click MBSetup. If SmartScreen appears, click "More info" → "Run anyway".
Follow the 2-step wizard. Malwarebytes installs in under 2 minutes with no restart.
Click Scan, review detected threats, then click Quarantine to remove them.
Join 500 million users protected by the world's most trusted malware removal software. Free download, free first scan, no credit card required.