What A-Packets Does Well
A-Packets is a genuinely useful free tool for getting a quick overview of a PCAP file without installing anything. Upload a capture and within seconds you'll see which protocols are present, the top communicating hosts, and a basic visualization of the network structure. For students and those new to packet analysis, it's an excellent first step.
If you simply want to confirm "what protocols are in this capture" or get a quick host map for a basic lab exercise, A-Packets does that job well and is completely free.
Where A-Packets Falls Short for Security Work
No Threat Detection
A-Packets doesn't know if the traffic is malicious. It will show you DNS queries and HTTP requests — but won't flag a DDoS pattern or C2 beacon.
No AI Analysis
There's no AI synthesis of findings. A-Packets shows raw stats; it doesn't generate any interpretation or severity assessment of what it found.
No IDS Signatures
Zero Suricata, zero Snort, zero MITRE ATT&CK. A-Packets can't tell you if traffic matches known malware, exploits, or attacker TTPs.
NetNerve vs A-Packets — Feature Comparison
Frequently Asked Questions
What is A-Packets and what does it do?
A-Packets (apackets.com) is a free online PCAP viewer that parses your capture file and shows a breakdown of protocols detected, top hosts, and a basic network graph. It's useful for a quick overview but doesn't perform any security analysis or threat detection.
Why use NetNerve instead of A-Packets?
NetNerve goes far beyond A-Packets by running your PCAP through 40,000+ Suricata IDS signatures, applying AI to generate a plain-English threat narrative, performing IP reputation lookups, extracting credentials from cleartext protocols, and mapping findings to MITRE ATT&CK. A-Packets shows you what protocols exist; NetNerve tells you if something dangerous happened.
Is A-Packets free?
Yes, A-Packets is free. NetNerve also has a free tier for basic analysis. The difference is in the depth of analysis — NetNerve's free tier still includes AI summaries and IDS signature scanning that A-Packets simply doesn't offer.
Can NetNerve handle the same PCAP files as A-Packets?
Yes. NetNerve supports .pcap and .pcapng files, the same formats supported by A-Packets and produced by tools like Wireshark and tcpdump.