ntop/nDPI
Some data may be outdated — see provenance labels.
Open Source Deep Packet Inspection Software Toolkit observed · 2026-09-23
Health v2 · maintenance only
84/100
- Activity 96
- Release rhythm 60
- Longevity 100
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-10-21. Adoption (stars, forks) is never an input.
- gap_med: 203
- age_days: 4202
- days_rel: 53
- days_push: 28
- n_releases_24m: 4
Adoption not part of the score
4613 stars · 1011 forks observed · 2026-09-23
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded
nDPI is an open source LGPLv3 C library for deep packet inspection that detects 450+ layer-7 application protocols from network traffic. It is part of the ntop suite and powers tools like ntopng and nProbe for traffic monitoring and threat detection.
Use cases
- identify application protocols in pcap files or live traffic
- build network monitoring or IDS/IPS tools with layer-7 visibility
- detect DGA domains and encrypted traffic patterns
- classify traffic by application instead of port numbers
- analyze network flows for security and threat detection
- embed protocol detection into firewalls or routers
When to choose
- you need a fast, embeddable C library for protocol classification
- you want broad layer-7 protocol coverage with active maintenance
- you're building network monitoring, security, or traffic analysis tooling
When to avoid
- you need a ready-made GUI monitoring console rather than a library (use ntopng)
- you only need simple port-based traffic stats
- your project cannot accept LGPL-3.0 or dual-license terms for some dissectors
Facets
library · maturity stable
parser security monitoring networking analytics networking security developer-tools windows bsd cross-platform c deep-packet-inspection dpi traffic-analysis protocol-detection libpcap ids c-library linux macos
10 sources
- readme: https://github.com/ntop/nDPI · fetched 2026-09-23 · fc887d6dc312
- homepage: http://www.ntop.org · fetched 2026-08-29 · da40264de79d
- site_page: https://www.ntop.org/support/documentation/users-guides · fetched 2026-08-29 · 35f046d18d07
- site_page: https://www.ntop.org/support/documentation/software-installation · fetched 2026-08-29 · 7d1b7c3958ce
- site_page: https://www.ntop.org/support/documentation/brochures · fetched 2026-08-29 · f13f68b2c2d2
- site_page: https://www.ntop.org/about-us/the-company · fetched 2026-08-29 · 1096e2064018
- site_page: https://www.ntop.org/about-us/meet-the-ntop-team · fetched 2026-08-29 · 9c6286c5a7e6
- site_page: https://www.ntop.org/about-us/partners-and-resellers · fetched 2026-08-29 · 70e93c13b971
- site_page: https://www.ntop.org/about-us/resellers · fetched 2026-08-29 · ff57374c6dc0
- site_page: https://www.ntop.org/support/need-help/faq · fetched 2026-08-29 · 522b8efa44e7
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| ntop/nDPI | main | 84 |
For agents
Data as of 2026-10-19T08:05:51.212177+00:00 · Report a problem