GoReplay is an open-source tool for capturing and replaying live HTTP traffic into a test environment in order to continuously test your system with real data. It can be used to increase confidence in code deployments, configuration changes and infrastructure changes.
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HTTP, HTTP2, HTTPS, Websocket debugging proxy
- fiddler
- charles
- hosts
- web
Capture SSL/TLS plaintext with eBPF—no MITM proxy or custom CA installation. Supports Linux and Android on x86_64\arm64 and loong64.
eBPF-powered network observability for Kubernetes. Indexes L4/L7 traffic with full K8s context, decrypts TLS without keys. Queryable by AI agents via MCP and humans via dashboard.
- kubernetes
- golang
- rest
- grpc
Read-only mirror of Wireshark's Git repository at https://gitlab.com/wireshark/wireshark. You're welcome to submit pull requests there.
- wireshark
- packet-capture
- tshark
- stratoshark
Kyanos is a networking analysis tool using eBPF. It can visualize the time packets spend in the kernel, capture requests/responses, makes troubleshooting more efficient.
MockServer is an HTTP(S) mock server and proxy for testing that lets you mock APIs, inspect and modify live traffic, and inject failures. It supports HTTP/1.1, HTTP/2, gRPC, WebSockets, TCP and more on a single port, with additional support for HTTP/3, message brokers, and AI/LLM APIs.
- mock-server
- proxy
- java-client
- javascript-client
WinDivert: Windows Packet Divert
- windivert
- packet-capture
- packet-sniffer
- firewall
PcapPlusPlus is a multiplatform C++ library for capturing, parsing and crafting of network packets. It is designed to be efficient, powerful and easy to use. It provides C++ wrappers for the most popular packet processing engines such as libpcap, Npcap, WinPcap, DPDK, AF_XDP, WinDivert and PF_RING.
- pf-ring
- dpdk
- packet-parsing
- winpcap
High-speed packet processing framework
- pf-ring
- capture-packets
- high-speed
- 100gbit
Like nmap for mapping wifi networks you're not connected to, plus device tracking
- hacking
- wireless
- python
- scapy
Malcolm is a powerful, easily deployable network traffic analysis tool suite for full packet capture artifacts (PCAP files), Zeek logs and Suricata alerts.
Official repository - Fully managed, cross platform (Windows, Mac, Linux) .NET library for capturing packets
- capture-packets
- c-sharp
- cross-platform
- network-monitoring
a iOS network debug library, monitor HTTP requests
- network-debug
- http-monitor
- ios
- objective-c
Scriptable local traffic workbench for inspecting, intercepting, replaying, and rewriting HTTP/HTTPS and WebSocket traffic.
ngrep is like GNU grep applied to the network layer. It's a PCAP-based tool that allows you to specify an extended regular or hexadecimal expression to match against data payloads of packets. It understands many kinds of protocols, including IPv4/6, TCP, UDP, ICMPv4/6, IGMP and Raw, across a wide variety of interface types, and understands BPF filter logic in the same fashion as more common packet sniffing tools, such as tcpdump and snoop.
- sniffer
- grepping
Enterprise-oriented Generic Proxy Solutions. Maintenance mode now, please switch to use [VEY](https://github.com/VEY-OSS/vey) for new development efforts
Malcolm is a powerful, easily deployable network traffic analysis tool suite for full packet capture artifacts (PCAP files), Zeek logs and Suricata alerts.
- network-security
- security
- arkime
- cybersecurity
TranslatedPacket monster (っ‘-’)╮=͟͟͞͞◒ ヽ( '-'ヽ) TUI tool for sending packets of arbitrary input and monitoring packets on any network interfaces (default: eth0). Windows/macOS/Linux
- packet-generator
- packet-analyzer
- network
- networking
A Rust library for constructing, sending, capturing, and decoding network packets
- libpcap
- network-programming
- networking
- packet-crafting
pysap is an open source Python library that provides modules for crafting and sending packets using SAP's NI, Diag, Enqueue, Router, MS, SNC, IGS, RFC and HDB protocols.
- cbas
- python
- sap
- scapy
PETEP (PEnetration TEsting Proxy) is an open-source Java application for traffic analysis & modification using TCP/UDP proxies. PETEP is a useful tool for performing penetration tests of applications with various application protocols. ⚡
- proxy
- tcp
- tcp-proxy
- penetration-testing
softflowd: A flow-based network traffic analyser capable of Cisco NetFlow data export software.
- netflow
- netflow-exports
- netflow-v9
- netflow-v5
A simple, cross-platform utility to classify packets into flows using only the essential 4-tuple.