Tools for Security & Privacy
71 toolsCheck your online security and protect your privacy. VPN leak detection, browser fingerprinting analysis, file encryption, steganography, and digital forensics.
Prohibited items
Check any item against cabin and checked-baggage rules for the US, EU, UK and Russia. With the reason and what to do instead.
Boarding pass scanner
Read the barcode on your boarding pass and see what it encodes: seat, booking code, check-in sequence, SSSS. Decoding runs in your browser.
Caller check
Family safe word, the call-back rule and voice comparison with a saved sample. Disproves a "relative in trouble" call; never confirms identity.
Digital Will
What Google, Apple and password managers already offer, what to write down, and how to split the key so nobody opens the envelope alone.
SSL certificate decoder
Read any X.509 certificate: expiry, SAN, issuer, key strength, chain. Explains what is wrong, not only what the fields say.
Self-signed certificate generator
Make an HTTPS certificate for localhost or an internal host. Builds a local CA so the browser warning goes away for good.
Key and certificate matcher
Check whether a private key belongs to a certificate or CSR. Works with RSA and EC, encrypted keys and .pfx bundles.
Certificate chain fixer
Paste your certificates and get a correctly ordered chain file. Finds the missing intermediate and downloads it for you.
Let’s Encrypt troubleshooter
Find out why certbot cannot validate your domain. Checks DNS, the challenge path over HTTP and your CAA records from outside.
Protect PDF
Add an AES-256 password and copy/print/edit restrictions to a PDF. Real encryption that every reader from 2017+ understands.
Unlock PDF
Remove the password from a PDF you can open. Decrypts, drops owner restrictions, lets you copy and print. No signup.
Ransomware identifier
Drop the ransom note and one encrypted file — either alone also works.
File diagnosis
Drop the file that will not open — we walk its structure and tell you what is wrong with it.
Document scanner
Photograph a page with your phone — the edges are found for you, the perspective is straightened, the shadows go, and out comes a PDF that will be accepted in place of a scan.
VPN Checker
Check if your VPN is working and test for IP, DNS, and WebRTC leaks. Instant anonymity score with detailed results.
Privacy Audit
Run 25+ privacy and security checks on your browser. Get a score from 0 to 100 with detailed results and recommendations.
Browser Fingerprint
Real entropy bits, live cohort comparison, defense test, and visual fingerprint art — see exactly how trackable your browser is.
Read a Plate From Video
Still frame from dashcam or CCTV video: sharpest frame, frame stacking, motion deblur, denoise, plate reading. In the browser, no invented pixels.
WebRTC Leak Test
Check if WebRTC is exposing your real IP address. Detect local, public, and mDNS candidates with real-time monitoring.
Cookie Checker
Scan any website to discover all cookies, trackers, and privacy risks in seconds.
SSL Checker
Enter a domain to inspect its HTTPS certificate: who issued it, when it expires, whether the chain is complete and which TLS versions the server accepts.
IP Lookup
Look up any IP address or domain to see its location, ISP, VPN status, and more.
Checksum Calculator
Hash any file with 6 algorithms. Verify downloads, compare files, find duplicates.
Hash Identifier
Identify the algorithm behind any hash: MD5, SHA-256, bcrypt, Argon2, NTLM and 50+ more. Ranked matches with hashcat & John modes. Free.
