Freedom251 › Network Packet Analyzer Software
SmartSniff
What SmartSniff is
SmartSniff is a free Windows utility for capturing TCP/IP packets and viewing network conversations. Its Freeware plan includes packet capture, conversation viewing, capture and display filters, and exporting or saving captured data. Live capture is supported, and a command-line tool is available for terminal-based use. SmartSniff handles its own .ssp files as well as tcpdump/libpcap and Microsoft Network Monitor .cap formats. The listed operating systems are Windows 98, ME, NT, 2000, XP, 2003, 2008, Vista, 7, and 8. Traffic decryption is not supported. The website is nirsoft.net, and the listed founding year is 2001. Its functions center on collecting network traffic, reviewing conversations, filtering what is captured or shown, and preserving captures in supported file formats. No price is listed beyond the free plan.
Who it suits
SmartSniff suits Windows users who need TCP/IP packet capture, conversation viewing, filtering, and capture-file handling. It also fits users who want live or command-line capture.
What it does well
- Freeware plan
- Live packet capture
- Conversation viewing
- Capture and display filters
- Supports several capture formats
What to know first
- Traffic decryption is unavailable
- Windows-only platform listing
- Listed operating systems stop at Windows 8
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| Freeware | TCP/IP packet capture · Conversation viewing · Capture and display filters · Export and save captured data | On request |
As nirsoft.net lists them, read 21 Sept 2026. The maker's own page has the final word.
Verdict
SmartSniff provides free packet capture and conversation review with live, filtered, and command-line workflows. Its lack of decryption and Windows-only scope define the main boundaries.
Facts from SmartSniff's own pages
- Founded
- 2001 · nirsoft.net, 4 Oct 2026
Where SmartSniff stands on Freedom251
- Network Packet Analyzer Software#26 of 32