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ByteLens
Free online network protocol visualizer and packet analyzer
ByteLens is a free online protocol visualizer and packet analysis tool for TCP, UDP, IPv4, IPv6, DNS, and Ethernet. It helps developers, students, and network engineers parse hex packets, inspect protocol fields, and understand packet structures interactively.
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What does ByteLens help with?
ByteLens is a free online protocol visualizer and packet analysis tool for TCP, UDP, IPv4, IPv6, DNS, and Ethernet. Paste raw hex bytes and instantly see each protocol field decoded, highlighted, and explained in an interactive visual layout. It runs entirely in the browser with no installation or signup, making it ideal for debugging network code, learning protocol internals, teaching networking, and documenting packet formats. Supports common header layouts with bit-level breakdowns.
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