An interactive TLS-capable intercepting HTTP proxy for penetration testers and software developers.
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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.
An HTTP toolkit for security research.
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
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
Hubble - Network, Service & Security Observability for Kubernetes using eBPF
Network Analysis Tool
RDP monster-in-the-middle (mitm) and library for Python with the ability to watch connections live or after the fact
Edit and replay captured network traffic at arbitrary speeds — a suite of pcap tools for *NIX and Windows.
- tcpreplay
- pcap
- netmap
- c
Process-aware, eBPF-based tcpdump
- ebpf
- ebpf-tc
- tcpdump
- tcpdump-like
A Software Probe for network packet capturing and forwarding in Cloud/Kubernetes and Virtualized environment.
- netis
- capture
- network
- traffic
A free, open-source alternative to Burp Suite: an intercepting proxy and web app security testing suite with Repeater, Intruder, Collaborator and a built-in OWASP ZAP scanner. Linux, AGPL-3.0.
- application-security
- appsec
- bug-bounty
- burp-alternative
Fast, native API client for REST, gRPC, WebSocket and GraphQL. A local-first Postman alternative written in Go: no Electron, no account, no cloud.
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
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
Simplify software testing, by easily mocking any system using HTTP/HTTPS, allowing a team to test and develop against a service that is not complete or is unstable or just to reproduce planned/edge cases.
Capture, inspect, and replay webhooks with 90-day history + signature verification. Built on Cloudflare Workers + D1.
A Go library providing a simplified abstraction over google/gopacket for network packet parsing and processing, reducing boilerplate and improving ease of use while preserving core packet inspection capabilities.
- bytes
- golang
- golang-library
- ip