Free Security Tools
Six checks. Under a minute.
Zero excuses.
Six fast, free, no-login security and privacy tests you can run right now. Find out if your password has leaked, how strong your passwords are, whether your VPN is actually hiding you, if your browser is leaking your real IP, what your connection speed looks like, and what the internet already knows about you. Nothing is stored. Nothing is shared. No account required. Optional email opt-in for occasional privacy tips — never 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 required to run the tool
- 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
Password Strength Checker
How strong is your password, really?
Powered by zxcvbn — the same open-source strength estimator used by Dropbox, WordPress, and thousands of security-conscious apps. Get a real crack-time estimate against realistic attack scenarios, not a lazy length check. Your password never leaves your browser.
- zxcvbn open-source strength scoring (0-4)
- Estimated crack time under four attack scenarios
- Detects dictionary words, keyboard walks, dates, l33t patterns
- Runs 100% client-side — password never sent to a server
Internet Speed Test
Get an honest read on your connection.
A fast, no-nonsense speed test that measures the three numbers that actually matter: download throughput, latency, and jitter. Runs in your browser against a global CDN. No adware, no auto-playing video, no login. Compare with and without CyberFence VPN to see what encryption really costs you.
- Download Mbps against a global CDN endpoint
- Latency (ms) round-trip to a nearby edge
- Jitter (ms) variance across 10+ ping samples
- Overall grade combining all three dimensions
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. Every tool here runs 100% free with no account required. After your result loads, we offer an optional email opt-in so we can share follow-up privacy tips — you can skip it and still use the tool.
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 required
You never need an email address to run any of these tools. After your result loads, you can optionally opt in for a confirmation and occasional CyberFence privacy tips — skip it and everything still works. If a "free" leak test requires your email up front, 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 and we do not track individual users. After your result loads, you can optionally opt in by email to receive a confirmation and occasional CyberFence security tips — you can skip it and still use the tool. 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.