QuicTrace

QuicTrace is a desktop + web app that captures and explains QUIC/HTTP/3 connection issues without requiring you to be a protocol expert. It ingests packet captures (pcap), qlog files, and browser/network logs, then reconstructs the handshake, transport parameters, stream lifecycle, loss/retransmission, and version/ALPN negotiation. The UI highlights the exact failure point (e.g., blocked UDP, MTU/PMTUD blackhole, TLS alert, idle timeout, anti-amplification limits) and suggests concrete next steps tailored to common environments (Cloudflare/Akamai/Fastly, Kubernetes ingress, corporate proxies, mobile carriers). This is a combination traditional + AI app: traditional deterministic parsing for correctness, with AI only used to generate readable explanations, probable root-cause ranking, and “what to try next” checklists. It’s aimed at saving hours of painful, error-prone manual Wireshark digging.