Protocol Explorer
Free interactive network simulator: watch HTTP, HTTPS, TCP, TLS, DNS and 35+ protocols in motion, with every packet decoded byte by byte. Animated lessons in 8 languages.
protocolexplorer.org
About Protocol Explorer
Protocol Explorer is a free interactive network simulator that shows how internet protocols actually work. Watch HTTP, HTTPS, TCP, TLS, DNS and 35+ protocols in motion, with every packet decoded byte by byte. Animated lessons walk through each step of a connection, and lessons are available in 8 languages, making abstract networking concepts easier to understand and remember.
Key features
- Interactive packet-level simulation of 35+ network protocols
- Every packet decoded byte by byte during lessons
- Animated lessons from DNS and TCP to TLS handshakes
- Lessons available in 8 languages
Who is this website for?
Students, developers and anyone learning how networks and internet protocols work.
What can visitors do here?
Pick a protocol such as TLS or DNS and watch a full connection unfold packet by packet: each handshake step is animated and every byte of every packet is decoded and explained as it travels.
What makes it different?
Every packet is decoded byte by byte in real time, so learners see the exact wire format instead of a simplified diagram.
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