Free Anti-Spyware Scanner and Remover

Download Avast One and run a free spyware scan to protect against spyware and other online threats. Regain control of your privacy with a spyware scanner, detector, and remover that’s ultra-fast and refreshingly lightweight — and 100% free.

Install free anti-spyware

Get it for PC, Mac, iOS

Install free protection

Get it for Mac, PC, Android

Download free anti-spyware

Get it for Android, iOS, Mac

Download free anti-spyware

Get it for iOS, Android, PC

2025
Top Rated
Product

2026
Product
of the Year

Powerful spyware scanner

Shop and bank securely

Trusted by over 400 million users

Award-winning protection

Our best free spyware removal tool

Run a free spyware scan — powered by Avast's industry-leading antivirus detection — and remove spyware and block malicious downloads before they can do harm. Get the world’s largest threat-detection network and machine-learning spyware protection in a single, lightweight spyware scan and removal tool — 100% free.

Install free anti-spyware

Get it for PC, Mac, iOS

Install free protection

Get it for Mac, PC, Android

Download free anti-spyware

Get it for Android, iOS, Mac

Download free anti-spyware

Get it for iOS, Android, PC

The benefits of Avast’s spyware scanner and remover

SmartScan

Removes existing spyware and updates in real time to defend against new and emerging threats.

Avast Assistant

Double-check if an online message or offer is a scam using the built-in AI assistant.

Behavior Shield

Notifies you if one of your apps starts to behave suspiciously so you can take action.

Quarantine

Keeps your device clean by isolating potential spyware and other malware from the rest of your system.

Network Inspector

Block hackers from piggybacking on your network and injecting spyware or accessing personal files.

Block scam sites

Prevents malicious scripts from loading while you browse online, and blocks dangerous websites.

SmartScan

Removes existing spyware and updates in real time to defend against new and emerging threats.

Avast Assistant

Double-check if an online message or offer is a scam using the built-in AI assistant.

Behavior Shield

Notifies you if one of your apps starts to behave suspiciously so you can take action.

Quarantine

Keeps your device clean by isolating potential spyware and other malware from the rest of your system.

Network Inspector

Block hackers from piggybacking on your network and injecting spyware or accessing personal files.

Block scam sites

Prevents malicious scripts from loading while you browse online, and blocks dangerous websites.

Stay safe with award-winning spyware protection

Our top-ranked antivirus engine that powers Avast One has been winning prestigious awards for years. Independent security test labs and experts agree: Avast’s cybersecurity protection is among the best in the world.

Our trophy case is full of awards from industry-respected sources, including:

Performance Test 2025 AV-Comparatives: Advanced +

Home User Protection Test 2025 AV Test: Top Rated Product

Advanced In-the-Wild Malware Test 2025 AVLab: Product of the Year

VB100 2024 Virus Bulletin: A+

Advanced Threat Protection Test 2024 AV-Test: Advanced

Anti-spyware protection trusted by over 400 million users

But don't just take our word for it.

The UI for your software - amazing. Great work over the years. Can't say enough good things!

Ryan R.

Thank you, Avast, for the excellent work you do. I run your antivirus software on both my Mac OS X and my Windows machines. You have the best products on the market, period.

Eric S.

I’ve been using Avast for over a year and have found it one of the best free software protection devices on market.

Daryl C.

Get rid of spyware on your Mac or mobile, too

Protect all your devices against spyware and other malware. Get ironclad online security for your Mac, Android, and iOS device.

MAC

Android

IPHONE/IPAD

Think your Mac might have a spyware infection? Avast’s Mac antivirus software automatically detects and removes spyware from your Mac while defending against other types of malware, like viruses and ransomware.

Phones also need spyware protection. Avast’s Android security software defends your phone from spyware, malicious apps, and other threats. Secure your Wi-Fi network and keep your data where it belongs — right in the palm of your hand.

Avast’s powerful iOS security app protects against spyware, dangerous websites, and other malicious threats. Block hackers, browse the web safely, and secure your Wi-Fi network with Avast.

Download our free spyware cleaner

Avast One scans, finds, and removes spyware, blocks future spyware infections, and guards against viruses, ransomware, and other threats. And, it doesn’t cost you a dime.

Install free anti-spyware

Get it for PC, Mac, iOS

Install free protection

Get it for Mac, PC, Android

Download free anti-spyware

Get it for Android, iOS, Mac

Download free anti-spyware

Get it for iOS, Android, PC

FAQs

What are the signs of spyware infection?

The most common signs of a spyware infection include:

Slow device performance
An overheating computer
Frequent freezes or crashes
Unexpected changes to your icons, homepage, or browser
Mobile app crashes
Unusually high background data usage if you’re on mobile

If you experience any of these issues, run a malware scan with a free antivirus app.

How can I get rid of spyware for free?

The best way to remove spyware is to use an anti-spyware scanner. Download and install a reliable free antivirus solution, and it will detect and remove the spyware from your device. Then, keep your device clean by removing junkware, PUPs, and other unnecessary software that can slow down your computer.

Is spyware the same as malware?

All spyware is malware, but not all malware strains are spyware. Spyware is just one type of malware that tracks your activity and collects information about your digital habits, and it’s designed to be hard to detect.

Why is spyware dangerous?

Spyware is a particularly dangerous form of malware because it’s so invasive. It can track your keystrokes, uncover your passwords, steal your personal information, and carry out other insidious activities. Certain spyware strains are highly sophisticated, and can be almost impossible to detect.

Can mobile devices get spyware?

Yes, phones are susceptible to viruses and other malware. One recent example is Pegasus spyware, which can be secretly installed on phones to read text messages, eavesdrop on calls, harvest passwords, and even track your physical location. Detect and remove threats with a malware removal tool, and protect your device with mobile security or dedicated iOS security.

Other tools

Helpful links

System requirements

All devices require an internet connection for automatic security and program updates.

PC with Windows 11, 10, 8.1, 8 or 7, (both the 32- and 64-bit versions, excluding Starter and RT edition), 1 GB RAM minimum, and 2 GB of hard drive space, ARM chips Windows 11 only.

Mac running macOS 10.14 (Mojave) or later, 64-bit Intel processor, and 1 GB of free disk space.

Windows 10 compatible

Free Anti-Spyware Scanner and Remover

Our best free spyware removal tool

Our best free spyware removal tool

The benefits of Avast’s spyware scanner and remover

Stay safe with award-winning spyware protection

Anti-spyware protection trusted by over 400 million users

Ryan R.

Eric S.

Daryl C.

Get rid of spyware on your Mac or mobile, too

Download our free spyware cleaner

FAQs

What are the signs of spyware infection?

How can I get rid of spyware for free?

Is spyware the same as malware?

Why is spyware dangerous?

Can mobile devices get spyware?

Other tools

Helpful links

System requirements

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