NETCAP vs OpenGrep
NETCAP
netcap.ioOpenGrep
github.comSide by side
| Figure | NETCAP | OpenGrep |
|---|---|---|
| Price from | €49/mo | Free |
| Free plan | Yes | Yes |
| Free trial | Yes | — |
| Open source | Yes | Yes |
| Web | Yes | — |
| Windows | Yes | Yes |
| macOS | Yes | Yes |
| Linux | Yes | Yes |
| API | Yes | Yes |
| Self-hosted | Yes | Yes |
| Plans published | 3 | 1 |
| Spec score · Network Protocol Analyzers | 9.1 (#2) | 8.6 (#5) |
| Integrations | Pro lists handoffs or integrations with Wireshark, Metasploit, hashcat, John, and BetterCrack; Core includes a Maltego transformation plugin. | The repository documents a CI subcommand, and its output formats include JSON and SARIF. |
| License | Core is GPL-3.0 copyleft; the maker also offers a separately negotiated commercial license for proprietary products. | The repository identifies OpenGrep as a fork of Semgrep under the LGPL 2.1 license. |
| Output formats | NETCAP writes compressed Protocol Buffer records and can export CSV, JSON streams and Prometheus metrics. | The tool supports JSON and SARIF outputs and can include metavariable values, fingerprints and enclosing match context. |
| Purpose | NETCAP converts network packet streams into structured audit records for network analysis, security research, machine learning, and forensics. | OpenGrep is an open-source static code analysis engine for finding security issues and searching code patterns. |
| What it does | NETCAP converts live network traffic or PCAP files into structured, type-safe audit records for security research, forensics, monitoring and machine-learning workflows. | Opengrep is a static code analysis engine for finding security issues and searching code patterns. |
Plans
In their own words
NETCAP
NETCAP converts network packet streams into structured audit records for network analysis, security research, machine learning and forensics. Its free Core edition covers 66+ record types for protocols including TCP, UDP, HTTP, TLS, DNS and DHCP. Core captures live traffic, processes PCAP files, supports distributed collection and HTTP proxy capture, and outputs Protocol Buffers, CSV, JSON streams and Prometheus metrics. It is an open-source CLI under GPL-3.0, with platform binaries and Docker images.
Pro adds interactive graph analysis, a network activity timeline, investigation notes and more than 35 analysis modules. It can flag anomalies in decoded traffic and draft incident reports for editing; the maker says Pro analyzes captures locally without an upload step. Pro is available for macOS, Windows and Linux and includes email support. The plan is listed at $548 a month, with a €48/year option also shown, and a 14-day trial without a credit card. Enterprise has custom pricing and includes unlimited team seats, priority support with an SLA, custom integrations and volume licensing.
OpenGrep
OpenGrep is a free, open-source static analysis engine for finding security issues and searching patterns in source code. It runs on Linux, macOS, and Windows, with self-hosted deployment. The project supports more than 30 languages, including Python, Java, JavaScript, Go, Rust, PHP, and Visual Basic, and existing Semgrep rules and rulesets work without changes. Its intrafile taint analysis tracks constructor and field assignments, flow between methods, higher-order functions across 12 languages, and collection operations such as map, filter, and reduce. OpenGrep produces JSON and SARIF output and documents a CI subcommand for workflow use. The project distributes self-contained binaries and says releases are signed with Cosign. OpenGrep is a Semgrep fork under the LGPL 2.1 license. The security policy requests vulnerability reports by email and lists only the latest version as supported.