Protocol Explorer
Interactive network simulator decoding packets byte by byte
About Protocol Explorer
Protocol Explorer is a 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 help students, developers, and curious learners understand how the internet really works, from the first DNS lookup to a completed TLS handshake.
What Protocol Explorer does
AINave analysisWatch network protocol exchanges animate step by step and inspect each packet's fields and bytes to understand how the internet works.
- Best for
- Students and certification candidatesDevelopers and site reliability engineersTeachers and networking instructorsCurious learners
- Use it to
- Prepare for networking certifications such as CCNA or Network+
- Understand the TCP handshake and TLS exchange
- Debug connection behavior by modeling real protocol flows
- Prepare networking lectures or system design interviews
- Learn what happens when a web page is requested
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