Build valid Wireshark display filters without memorizing syntax — field picker, AND/OR/NOT grouping, a gotcha linter, plain-English readout, and shareable filter links.
Subnet / CIDR Calculator · Bandwidth-Delay Product Calculator · Subnet Quiz · Availability / SLA Calculator · Data-Center Capacity Planner · Tick-to-Trade Latency Calculator · Optical Link Budget Calculator · PTP Timing Budget Calculator · ECMP Hash Polarization Visualizer · Firewall ACL Rule Analyzer · Network config verifier · PTP/SyncE Network-Wide Timing Simulator · Wi-Fi Channel Interference Planner · QoS Token-Bucket Policer & Shaper Simulator — all free, all run entirely in your browser.