Using Frame Bench
Is there a macOS version?
Not yet. macOS support is coming soon. If you want it,
tell us so we know how many people are waiting.
Which files can I open?
Classic pcap and PcapNG captures, and raw-frames JSON exports. Fiddler SAZ and browser HAR files import as real, editable TCP and HTTP frames.
Can it capture live traffic?
No, on purpose. It edits and crafts captures you already have. Record with Wireshark or tcpdump, then open the file here.
Does editing a byte break checksums and lengths?
By default it does not. Auto-fix recomputes lengths and checksums after each edit, including the Ethernet padding case on short frames. You can turn it off in Preferences, and Health check scans the whole capture on demand.
Can I undo changes?
Yes. Undo and redo cover single edits and whole batch operations, and Revert all changed frames puts everything back the way it was loaded.
How do I handle very large captures?
Large-capture mode indexes the file instead of reading it whole, and loads only the frame range or filter you choose. Filtered exports stream straight to disk.
How do I keep my work?
Save a session file to restore frames, templates, rules and filters later. Autosave also keeps a recovery copy in case of a crash.