Free Security Tools
Four checks. Under a minute.
Zero excuses.
Four fast, free, no-login security tests you can run right now. See your full IP fingerprint, find out if your password has leaked, whether your VPN is actually hiding you, and if your browser is exposing your real IP behind the tunnel. Nothing is stored. Nothing is shared. No account required.
Password Breach Check
Has your password been leaked?
Check any password against 15+ billion records from real data breaches. Password never leaves your browser thanks to SHA-1 k-anonymity — the same technique used by 1Password, Google Chrome, and Apple.
- ✓ Checks against 15+ billion leaked credentials
- ✓ Password stays in your browser (SHA-1 k-anonymity)
- ✓ No account, no email, no tracking
- ✓ Instant result in under a second
DNS Leak Test
Is your VPN actually hiding you?
See exactly what IP address, reverse DNS record, and geographic location every website sees when you visit. If your VPN is on, all three should point to your VPN provider — not your ISP or home city.
- ✓ Detects VPN-off and DNS-bypass-tunnel failures
- ✓ Known-VPN and known-ISP classifier
- ✓ Public IP, reverse DNS, edge-reported location
- ✓ No login, no result storage, runs in seconds
WebRTC Leak Test
Is your browser exposing your real IP?
WebRTC is a browser feature used by video calls and voice apps. It can silently reveal your real public and local IP addresses even when a VPN is connected — a well-known VPN failure mode this test catches instantly.
- ✓ Detects the classic WebRTC IP-leak vulnerability
- ✓ Compares WebRTC candidates against your public IP
- ✓ Runs 100% client-side — nothing sent to a server
- ✓ Works on Chrome, Firefox, Safari, Edge, Brave
IP & Privacy Check
What does the internet see about you?
A complete snapshot of the digital fingerprint every website sees: your public IP, ISP, ASN, city, timezone, browser, screen, language, and whether that IP looks like a residential connection or a VPN/datacenter. Every attacker profile starts here.
- ✓ Public IP, ISP, ASN, geolocation, timezone
- ✓ VPN / proxy / datacenter heuristic detection
- ✓ Full browser fingerprint (user agent, languages, screen, DNT)
- ✓ No login, no logging, runs in your browser
Why We Build These
Free tools. Real answers. No sales gate.
Most VPN companies bury their leak tests behind a signup wall — or worse, break their own tests on purpose to make the paid product look better. We do the opposite. If you can catch a leaking VPN or a reused breached password in 30 seconds, you should be able to. That's why every tool here is 100% free with no account required.
Nothing stored
Passwords are hashed locally. DNS lookups aren't logged. WebRTC results never leave your browser. We can't reveal what we don't record.
No account
Not one of these tools asks for an email address. If someone asks for your email to run a "free" leak test, that's the product.
Rate-limited but not gated
We rate-limit at the edge to prevent abuse, but every real user gets an honest answer for free — every time.
Next Step
Free tools show you today. CyberFence Complete watches every day.
Every free tool on this page is a point-in-time snapshot. If you want the same protection running continuously — every website you visit, every credential you use, every hour of every day — CyberFence Complete is the paid, always-on version of the tools above.
- ✓ VPN with kill switch + forced-tunnel DNS on every platform (fixes DNS leaks 24/7)
- ✓ Breach Monitor watches up to 3 email addresses across 700+ breach sources
- ✓ Web Shield blocks phishing and malicious domains before you visit them
- ✓ One US-operated company. One monthly bill. No prepay-3-years pricing tricks.
7-day free trial. Cancel anytime. VPN-only from $7.99/mo, Breach Monitor from $5.99/mo.
FAQ
Common questions about these free tools.
Are these tools really free?+
Yes. Every tool on this page is 100% free with no login required. We do not store your results, we do not require an email address, and we do not track individual users. These tools exist because we think a serious VPN and breach-monitoring company should give away the entry-level version of the tools it sells.
Why do you build free tools?+
Two reasons. First, they help our users — if you can catch a leaking VPN or a reused breached password in 30 seconds, you should be able to. Second, they build trust: anyone can verify our tools work before ever paying us anything. The paid CyberFence products are the continuous, always-on versions of what these free tools show you at a single point in time.
What's the difference between the free tools and paid CyberFence products?+
The free tools are point-in-time checks — you run them when you want to know something right now. The paid products are continuous: CyberFence VPN keeps DNS queries tunneled 24/7, Breach Monitor watches your email addresses around the clock and alerts you the moment new breaches are discovered, and Web Shield blocks phishing and malicious domains before you visit them.
Do you plan to add more free tools?+
Yes. We ship a new free tool whenever we identify a common security failure that a browser-based test can catch. If there is a specific test you would find useful, contact us — real user requests get prioritized.
Where does the breach data come from?+
The password check queries Have I Been Pwned's Pwned Passwords database, which aggregates 15+ billion password hashes from hundreds of confirmed data breaches. Your password is hashed in your browser and only the first 5 characters of the hash are ever sent — a technique called k-anonymity.
What browsers do these tools work in?+
Every modern browser: Chrome, Firefox, Safari, Edge, Brave, Opera, and Arc. The tools use standard Web Crypto and WebRTC APIs that have been supported for years. No plugins, no extensions, no downloads.