Small tools for privacy and security online. They run right in your browser, nothing is sent to a server except where a tool's own page says so.
Leaks and what websites see about you.
IP, WebRTC, IPv6 and time zone in five seconds, with a verdict.
Shows the IP address websites see when you connect.
Check who resolves website names: your VPN server, your provider, or a public DNS. Your browser asks for names in our zone, we see who came for them.
Checks whether WebRTC is revealing your real IP around your VPN.
Checks whether your device is leaking your real IPv6 address around your VPN.
Shows what sites can learn about your browser and device without your IP.
Outages, blocks and what your network lets through.
Every 15 minutes our servers in five countries open 77 popular services. See what is not answering right now and from which points.
Checks which services do not open on your connection.
Checks 18 services, from Telegram to ChatGPT, and shows which stay silent.
Pick a country and see what is blocked there, what works and whether to set up a VPN before you travel.
Once a day our servers in five countries open two dozen popular services and record what answered. Our own measurements, not a retelling.
We open your address from our servers in several countries and show what it answered each of them: status code, latency and where a redirect led.
Find out in seven seconds whether this network passes UDP, non-standard ports and outside DNS, and which VPN protocol will actually connect here.
Checks whether WireGuard will work on this network or you need VLESS over TCP.
Download speed, ping and jitter in a few seconds, no plugins.
Who owns an IP, where a link goes, what DNS says, whether a password leaked.
Country, city, provider and ASN for any address, yours or one from your logs.
Enter a domain and see everything DNS says about it, plus what is missing: mail without MX, letters going to spam without SPF and DMARC.
Paste a shortened link and see the whole redirect chain, the final address and the tracking tags in it. Our server walks the chain, not your browser.
Checks your password against breach data without sending the password.
Configs and keys for your own server or client.
Keys, PresharedKey, wg0.conf and a QR code, all in the browser.
Free VLESS config generator: a vless:// link with a QR code, plus Xray and sing-box server configs. Reality keys are made in your browser, no sign-up.
Breaks vless://, trojan://, ss:// into fields and makes a QR code.
Calculates network address, broadcast, mask, and host range from a CIDR block.
Transfers, addresses, seed phrases and units.
Paste a transaction hash and see whether it arrived, how many confirmations it has and why it may be stuck.
Paste a crypto address: which network it belongs to and whether the checksum matches.
A BIP-39 phrase of 12 or 24 words, and a checksum check for your own. Nothing leaves the page.
A payment link with the address and amount inside, plus its QR code, Bitcoin, Ethereum, TRON, TON.
Convert between coins and their small units, and work out the Ethereum fee from the gas price.
Send, seal and sign so only the right person can read it.
The file goes straight from your browser to the recipient’s over WebRTC.
The recipient publishes a public key once; you encrypt with it and only they can read the result.
Write a password or a code, get a link, and the note disappears once it is read.
Turn a message into a single line that can be pasted anywhere and read only with the password.
Put a password on a file before sending it. AES-256-GCM with the browser’s own crypto; the file is never uploaded and the password is stored nowhere.
Cut a seed phrase or a master password into parts so that any K of them restore it and fewer say nothing at all. Everything is computed in the tab.
Sign a text with your key so anyone holding your public key can confirm it is yours and was not altered. Keys never leave the tab.
QR codes, passwords, clean links, data maths.
A link, text or Wi-Fi password → a ready code in PNG and SVG.
Upload a picture of a QR code or point your camera at it and see what is inside: the address, the Wi-Fi network, the payment.
Creates a strong random password right in your browser.
Strips utm, fbclid and other tags, and builds your own next to it.
See the GPS coordinates, camera and time hidden in your photo, then cut them out. Pixels are untouched and the file never leaves your device.
Drop a file and get its SHA-256, or paste the published checksum and let the page compare them. Nothing is uploaded: the file is read inside the tab.
Convert the speed and see how long a file takes to download, with a table of common speeds.
Estimates how many gigabytes streaming, calls, and social media use per month.
Works out what international minutes cost and when a subscription pays for itself.
They show you what websites can learn about you. To actually change that, hide your IP and encrypt your traffic, you need a VPN.
Get a 404 VPN key →Key, payment and renewal right in the chat, no app to install. Subscription status and a reminder before it expires are there too.