Free tools Windows power users keep installed

One-click scans. No signup required.

Special offer. See more information about Outbyte and uninstall instructions. Please review EULA and Privacy policy.

iTechGuides is reader-supported. When you buy through links on our site, we may earn an affiliate commission. As an Amazon Associate I earn from qualifying purchases. Learn more

There is no single “best” privacy tool. The useful choice is a small combination matched to your accounts, devices, activities and threat model. A password manager and stronger two-factor authentication usually protect accounts first; browser protections reduce tracking; encrypted messaging protects conversations; and a VPN can protect network traffic without making you anonymous.

The 99-tool inventory behind this guide is a directory, not a ranking or blanket recommendation. Free plans can impose limits on data, locations, devices, features or regions, and every provider has its own data practices. Use the framework below to select only what solves a real risk, then verify the provider’s current documentation and privacy notice.

What the “99 free tools” list actually represents

The source guide, updated September 7, 2026, counts 99 entries across VPNs, password managers, antivirus utilities, secure messaging and email, tracker and ad blockers, private search engines, browsers, Windows privacy controls and miscellaneous tools. The number is an inventory count—not a measurement of security outcomes, anonymity or value. The entries are not ranked, and individual product status, plans and platform support can change.

Special offer. See more information about Outbyte and uninstall instructions. Please review EULA and Privacy policy.

That distinction matters. Installing every item can create conflicts, duplicate functions, expose more data to vendors and make your devices harder to manage. Treat the directory as a menu. Start with the information you need to protect and the attacks or tracking you consider plausible, then select the smallest set that addresses those risks.

#1 Best Overall
Sale
Ailun Privacy Screen Protector iPhone 17e/16e/14/13/13 Pro, 2 Pack | 6.1 Inch, Tempered Glass, Anti Spy Private, Case Friendly, Not for iPhone 16 6.1 Inch
  • [2 Pack] This product includes 2 pack privacy screen protectors.WORKS FOR iPhone 17e/16e/14/iPhone 13/13 Pro 6.1 Inch tempered glass screen protector.Featuring maximum protection from scratches, scrapes, and bumps.[Not for iPhone 16 6.1 inch, iPhone 13 mini 5.4 inch, iPhone 13 Pro Max/iPhone 14 Pro Max/iPhone 14 Plus 6.7 inch, iPhone 14 Pro 6.1 inch]
  • Specialty: to enhance compatibility with most cases, the Tempered glass does not cover the entire screen. HD ultra-clear rounded glass for iPhone 17e/16e/14/iPhone 13/13 Pro is 99.99% touch-screen accurate.
  • 99.99% High-definition clear hydrophobic and oleophobic screen coating protects against sweat and oil residue from fingerprints.
  • High Privacy: Keeps your personal, private, and sensitive information hidden from strangers,screen is only visible to persons directly in front of screen.Good choose when you are in the bus,elevator,metro or other public occasions.(Note: Due to this privacy cover will darken the image to prevent the peeking eyes near you, you might need to turn your device display brightness up a bit when use it.)
  • Online video installation instruction: Easiest Installation - removing dust and aligning it properly before actual installation,enjoy your screen as if it wasn't there.

Choose by threat model, not by popularity

Privacy Guides notes that recommendations target different threat models. A person trying to stop advertising trackers has different requirements from a journalist protecting sources, a traveler avoiding unsafe Wi-Fi interception or a family securing online accounts. Write down what you are protecting, from whom, on which devices and what would happen if it were exposed.

Account takeover

Prioritize a password manager, unique passwords and two-factor authentication (2FA) for email, financial, work and social accounts. The goal is to prevent one stolen password from unlocking everything else.

Web tracking and profiling

Use a browser with tracking and fingerprinting protections, plus a carefully chosen content or tracker blocker. These controls can reduce some forms of tracking; they do not make you invisible or defeat every form of identification.

Special offer. See more information about Outbyte and uninstall instructions. Please review EULA and Privacy policy.

Network observation

A VPN can encrypt traffic between your device and the VPN provider, which is useful on untrusted networks. It does not provide anonymity, replace HTTPS or protect traffic from other apps when it runs only as a browser feature.

Conversation and mail confidentiality

Choose end-to-end encrypted messaging or an encrypted email service when the communication itself is sensitive. Check whether encryption applies to both ends, backups, metadata and the recipient’s account; a secure app cannot control what a recipient later forwards.

Censorship and stronger anonymity needs

Privacy Guides describes Tor Browser as a tool for anonymity and censorship circumvention. “Anonymity” is a goal with operational risks, not a guarantee. Your behavior, account logins, browser configuration and the websites you visit can still identify you.

Rank #2
SMARTDEVIL 2 Pack Privacy Screen Protector for iPhone 17 Pro Max, Anti-Spy | Military-Grade Shatterproof Protection, Tempered Glass Film , 9H Hardness, Fast & Easy Installation, Case Friendly Design
  • Perfect Fit for iPhone 17 Pro Max:Engineered exclusively for iPhone 17 Pro Max with seamless edge-to-edge coverage, ensuring precise alignment and reliable full-screen protection.
  • Advanced Privacy Protection:Features a 28° privacy filter with smooth 2.5D curved edges, preventing side glances in public. Your screen remains visible only to you—ideal for commuting, traveling, and crowded environments.
  • Effortless Installation:Equipped with an auto dust-elimination tool that delivers a fast, accurate, and bubble-free application, keeping your screen perfectly clear with minimal effort.
  • Military-Grade Protection:Made of nano-reinforced 9H tempered glass, SGS certified. Provides 5X stronger scratch resistance and proven durability, withstanding thousands of pressure and impact tests.
  • Smudge & Fingerprint Resistant:Hydrophobic and oleophobic coating repels fingerprints, sweat, and oil—ensuring your screen stays clean, clear, and smooth to the touch.

How the main categories differ

Category Primary job Protection scope Free-tier questions to check
Password manager Generate and store distinct credentials Accounts and login secrets Device count, synchronization, recovery, export and encryption design
Two-factor authentication Add a second proof of identity Individual accounts Authenticator-app, security-key and backup-code support; recovery process
Privacy browser Limit tracking and fingerprinting That browser’s sessions Which protections are enabled, breakage controls, update policy and telemetry settings
Tracker or ad blocker Block known scripts, ads and tracking requests Supported browsers or devices Platform coverage, filter-list maintenance and websites that require exceptions
VPN Encrypt the connection to a VPN server Browser, device or selected apps, depending on the client Monthly data, server locations, device limits, logging disclosures and country availability
Secure messaging or email Protect message content in transit and, where offered, at rest Communications and accounts Recipient compatibility, metadata, backup behavior and account recovery
Private search engine Reduce search-based profiling Search queries and result personalization Result quality, region support and how queries are retained
Antivirus Detect or block malicious software Files, processes and sometimes web downloads Operating-system support, real-time protection, update frequency and advertising or telemetry
Windows privacy controls Adjust operating-system permissions and diagnostics A Windows device Which setting changes are reversible and what functionality they disable

Build a practical free privacy stack

Use this order so that a tracking preference does not distract from an account compromise.

Special offer. See more information about Outbyte and uninstall instructions. Please review EULA and Privacy policy.
  1. Secure the primary email account. Change a reused password to a unique, manager-generated password. Enable 2FA and save recovery codes offline. Email often controls password resets for every other service.
  2. Move other important accounts into the manager. Replace reused or predictable passwords. Keep the manager’s master passphrase unique and enable its strongest available account protection.
  3. Add 2FA to high-value services. The Federal Trade Commission says, “The more secure types of two-factor authentication are an authenticator app or a security key.” Text or email codes are generally weaker because a phone number or mailbox can be taken over. A FIDO2-compatible security key is optional; check that each service supports it and keep a second recovery method.
  4. Update devices and reduce unnecessary permissions. Install operating-system and browser security updates. Review camera, microphone, location, contacts and notification access, removing permissions that an app does not need.
  5. Configure the browser. Turn on its built-in tracking protections, block third-party cookies where practical and use a maintained tracker blocker if it does not conflict with the browser. Create exceptions only for sites that genuinely break.
  6. Choose a private search option. Compare the provider’s retention and personalization disclosures. A private search engine changes the search service, not the privacy behavior of every website you open from its results.
  7. Add a VPN only for a clear network reason. Decide whether you need browser-only coverage or all-device coverage. Confirm the free data allowance, server regions and logging policy before relying on it.
  8. Use secure communications for sensitive conversations. Confirm that the people you need to reach can use the same service and understand what backups and metadata it retains.
  9. Review the stack quarterly. Remove abandoned extensions and accounts, test recovery codes, check for plan or privacy-notice changes and revisit whether each tool still solves a current risk.

Password managers: the highest-leverage free tool

A password manager lets you use a different, long credential for every account instead of memorizing or reusing passwords. Mozilla describes Firefox’s free password manager as able to generate and store unique passwords, with optional synchronization through a Mozilla account. Synchronization is convenient, but it also makes the account protecting the vault especially important.

Set one up safely

  • Choose a long master passphrase that you have never used elsewhere.
  • Turn on the manager’s available 2FA and keep recovery information offline.
  • Generate passwords inside the manager rather than inventing variations of one old password.
  • Check autofill prompts carefully; phishing pages can imitate legitimate login forms.
  • Export an encrypted backup only when necessary, store it securely and delete temporary copies.

Two-factor authentication and security keys

2FA limits damage when a password leaks, but methods differ. Authenticator apps generate codes on the device; security keys require a physical touch and are resistant to many phishing attacks. Text and email codes are better than no second factor, yet they depend on the security of your phone number or mailbox.

Register 2FA from the account’s security page, save the emergency recovery codes, and test a recovery path before logging out of all devices. Do not buy a key for every account by default: first confirm compatibility, support for multiple keys and what happens if the key is lost.

Browsers, trackers and fingerprinting

Firefox documents protections against known trackers and some fingerprinting techniques. These measures can reduce profiling and page-level tracking, but they cannot make a user invisible. A site can still see information you deliberately provide, observe behavior within its service, or identify you through a logged-in account. Aggressive blocking can also break payments, video playback or sign-in flows.

Special offer. See more information about Outbyte and uninstall instructions. Please review EULA and Privacy policy.

Use a separate browser profile for sensitive work, keep extensions to a minimum and update the browser automatically. When a site fails, first try a temporary, narrowly scoped exception rather than disabling every protection globally.

Rank #3
Sale
Ailun Privacy Screen Protector for iPhone 16 / iPhone 15 / iPhone 15 Pro | 3 Pack, 6.1 inch, Tempered Glass, Anti Spy Private, Anti-Scratch, Case Friendly
  • [3 Pack] This product includes 3 pack privacy screen protectors.WORKS FOR iPhone 16/iPhone 15/iPhone 15 Pro 6.1 Inch tempered glass screen protector. Due to the rounded edge design of the iPhone 16/iPhone 15/iPhone 15 Pro and to enhance compatibility with most cases,the tempered glass screen protectors will be slightly smaller than the phone screen.[Not for iPhone 16e 6.1 inch, iPhone 15 Plus/iPhone 15 Pro Max/iPhone 16 Plus 6.7 inch,iPhone 16 Pro 6.3 inch,iPhone 16 Pro Max 6.9 inch]
  • Specialty: HD rounded glass for iPhone 16/iPhone 15/iPhone 15 Pro 6.1 Inch is 99.99% touch-screen accurate.
  • 99.99% High-definition hydrophobic and oleophobic screen coating protects against sweat and oil residue from fingerprints. Featuring maximum protection from scratches, scrapes, and bumps.
  • High Privacy: Keeps your personal, private, and sensitive information hidden from strangers,screen is only visible to persons directly in front of screen.Good choose when you are in the bus,elevator,metro or other public occasions.(Note: Due to this privacy cover will darken the image to prevent the peeking eyes near you, you might need to turn your device display brightness up a bit when use it.)
  • Online video installation instruction: Easiest Installation - removing dust and aligning it properly before actual installation,enjoy your screen as if it wasn't there.

VPNs: useful encryption, not anonymity

Privacy Guides is explicit that a VPN does not make browsing anonymous and is not a substitute for HTTPS or sound security practices. A VPN shifts trust from the local network and internet provider to the VPN operator. Read its retention, jurisdiction and data-sharing disclosures before entering sensitive traffic.

Understand browser-only coverage

Mozilla’s October 6, 2026 description of Firefox includes 50 GB of free browser-based VPN browsing per month. That feature routes Firefox browsing traffic; it does not cover other applications, downloads outside the browser or all system traffic. The same article describes regional launch history, so confirm that the feature and its current country list are available where you live.

Check free-plan limits

  • Monthly data can run out during video, game or large-download use.
  • Free locations may be fewer than paid locations and may not include a needed country.
  • Device, speed, queue, support and protocol limits can change.
  • A provider can still collect connection or account data under its privacy policy.

Private email, messaging and aliases

Encryption protects content only within the boundaries the service actually describes. Check whether messages are encrypted end to end, whether subject lines or contacts remain visible as metadata, how backups work and whether the recipient must use the same service.

Special offer. See more information about Outbyte and uninstall instructions. Please review EULA and Privacy policy.

Mozilla’s 2026 Firefox article also reports up to 50 free email masks. An email mask can reduce exposure of your real address when signing up for newsletters or other lower-risk services, but it is not a replacement for securing the mailbox that receives recovery messages. Limits and regional availability should be rechecked before depending on the feature.

Antivirus and operating-system privacy controls

Antivirus belongs in a layered defense: updates, least privilege, safe downloads and backups still matter. Verify that a free scanner supports your operating system and provides current definitions or cloud detections. Running multiple real-time antivirus engines can cause conflicts; use one real-time layer and treat additional scanners as occasional second opinions only when their documentation supports that mode.

Windows privacy controls can restrict diagnostics, advertising identifiers, location and app permissions. Change one setting at a time, record the original value and test the functions you need. A “maximum” setting can disable useful search, notifications or accessibility features without eliminating every data flow.

Rank #4
Ailun Privacy Screen Protector+Camera Lens Protector for iPhone 16, 3+3Pack | 6.1 Inch, Tempered Glass Film, Installation Frame, Anti Spy Private, Case Friendly
  • [3+3 Pack] This product includes 3 pack privacy screen protectors and 3 pack camera lens protectors with Installation Frame. Works For iPhone 16 [6.1 inch] tempered glass screen protector and camera lens protector. Featuring maximum protection from scratches, scrapes, and bumps. [Not for iPhone 16e 6.1 inch, iPhone 16 Pro 6.3 inch, iPhone 16 Pro Max 6.9 inch, iPhone 16 Plus 6.7 inch]
  • Night shooting function: specially designed iPhone 16 6.1 Inch camera lens protective film. The camera lens protector adopts the new technology of "seamless" integration of augmented reality, with light transmittance and night shooting function, without the need to design the flash hole position, when the flash is turned on at night, the original quality of photos and videos can be restored.
  • High Privacy: Keeps your personal, private, and sensitive information hidden from strangers, screen is only visible to persons directly in front of screen. Good choose when you are in the bus,elevator,metro or other public occasions. (Note: Due to this privacy cover will darken the image to prevent the peeking eyes near you, you might need to turn your device display brightness up a bit when use it.)
  • Easiest Installation - Please watch our installation video tutorial before installation. Removing dust and aligning it properly with the help of the included installation frame before actual installation, enjoy your screen as if it wasn't there.
  • 99.99% High-definition clear hydrophobic and oleophobic screen coating protects against sweat and oil residue from fingerprints, and enhance the visibility of the screen.

How to assess a provider before installing

  1. Read the current plan page. Record the date, supported platforms, device count, data allowance, locations and features that are genuinely free.
  2. Read the privacy notice. Look for account data, diagnostics, IP addresses, usage logs, retention periods, sharing and deletion controls. Mozilla’s Firefox privacy notice, for example, explains that data may be collected to provide browser functionality and features; “privacy tool” does not mean “collects nothing.”
  3. Check the security model. Look for independent audits or clear technical documentation, but do not treat a marketing claim as proof of protection against every threat.
  4. Confirm lifecycle status. Download only from the provider’s current official page or your operating system’s trusted store. Free products can be discontinued, renamed or restricted by country.
  5. Plan recovery and removal. Know how to export data, close the account, revoke permissions and uninstall cleanly before you put sensitive information into the service.

Use public directories carefully

CISA’s no-cost cybersecurity services directory includes government, open-source, public and private offerings. CISA says the directory is not comprehensive, can change and does not endorse listed products or attest to their suitability or effectiveness for a particular use. That warning applies to any long list: inclusion is a prompt for verification, not a security certification.

Special offer. See more information about Outbyte and uninstall instructions. Please review EULA and Privacy policy.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Support on Ko-Fi

Common mistakes and fixes

Installing everything on the list

Why it fails: duplicate blockers, conflicting security software and more vendors with access to data. Fix: map each tool to one threat, keep only tools with a current purpose and remove the rest.

Calling a VPN anonymous

Why it fails: account logins, browser fingerprints and the VPN provider’s own records can still link activity. Fix: use HTTPS, minimize identifying logins and describe the VPN as a network-privacy layer.

Assuming free means unlimited

Why it fails: limits on data, locations, devices, features, support or countries are common. Fix: record the exact allowance and review it when your usage or the provider’s plan changes.

Ignoring the tool’s data practices

Why it fails: a privacy feature may require telemetry or an account. Fix: read the privacy notice, turn off optional diagnostics and choose a different tool when the trade-off does not fit your threat model.

Special offer. See more information about Outbyte and uninstall instructions. Please review EULA and Privacy policy.

Losing recovery access

Why it fails: a locked vault, missing security key or deleted email account can strand you. Fix: store recovery codes securely, maintain an approved backup factor and test the process while you still have access.

Best Value
Sale
UltraGlass TOP 9H+ Armor for iPhone 17 Pro Max Privacy Screen Protector 6.9 | 12FT Military Grade Shatterproof, Privacy Screen 17 Pro Max Tempered Glass 17 ProMax, 100% Anti-Spy, Longest Durable, 2 Packs
  • [Industry-Leading 100% Anti-Spy Privacy Protection] Designed for iPhone 17 Pro Max. Larger iPhone screens are easier for others to glance at, so UltraGlass uses patented, SEGI-certified 25° Blackout-3 optical technology to help block side views and keep emails, banking apps, and private content visible only to you—while keeping the front view HD-clear and comfortable through hours of scrolling and streaming.
  • [Unbreakable TOP 9H+ Glass, the Excellent 2nd Screen for Your iPhone] Boasting unparalleled shatter resistance and durability. And the core excellence is the top 9H+ tempered glass material, which is widely applied in aerospace and military fields for its ① Shatter-proof ② Scratch & Wear Resistance ③ Durability that is 7-8 times higher than other materials. Thus, UltraGlass builds a second tough screen for your iPhone 17 Pro Max.
  • [Industry Top Military-Grade Shatterproof] Authorized by the International Military Standard with 50+ rigorous engineering tests of 220 lbs impact, 8,000+ drop tests, 25,000+ scratch tests, etc., its strength, toughness and durability perform NO.1 among all glass. By especially breaking the industry's record with a 12ft drop, the iPhone 17 Pro Max screen protector is ensured to be unbreakable from its surface to every edge and corner.
  • [Invisible Armor, 1:1 Full Covers the iPhone's Screen] Mimicking the iPhone's original screen design, it uses a 1:1 3D curved reinforced black edge that wraps around every curve — case friendly — while securing even the most vulnerable edges. Seamlessly blending with the iPhone 17 ProMax screen, it's virtually invisible and feels like the original screen while offering enhanced full-screen protection.
  • [0 Bubbles + 0 Dust + 0 Misaligned =100% Successful Installation] Includes everything you need with pioneering automatic positioning, dust removal, and absorption technology, making the installation just effortlessly easy in seconds. No bubbles, no troubles—transforming beginners into experts!

What the strongest free setup looks like for common users

Everyday home user

Use a password manager, unique passwords, authenticator-app 2FA on email and financial accounts, automatic updates, a privacy-configured browser and a maintained tracker blocker. Add a VPN only when you need protection on a network you do not trust.

Remote worker

Separate work and personal browser profiles, use the employer’s approved security controls, protect the work account with a security key where supported and verify whether a browser-only VPN actually covers the applications carrying work data.

Traveler on public Wi-Fi

Update devices before leaving, enable 2FA, prefer HTTPS and use a reputable VPN with enough free data for the trip. Avoid assuming that the VPN protects devices or applications on which its client is not installed.

Special offer. See more information about Outbyte and uninstall instructions. Please review EULA and Privacy policy.

Person facing censorship or heightened surveillance

Study Tor Browser’s documented use for anonymity and censorship circumvention, avoid logging into identifying accounts during anonymous sessions and plan for operational mistakes. No browser or network tool guarantees perfect anonymity.

How to interpret the headline numbers

The directory’s “99” is simply the number of entries in that September 2026 guide. Mozilla’s figures of 50 GB of browser VPN browsing per month and up to 50 email masks are vendor-stated feature limits reported on October 6, 2026, not independent performance or privacy-outcome statistics. Recheck both figures, their regions and their terms before relying on them.

Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.