gor ☆

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Description:
Real-time HTTP traffic replay tool written in Go

Type: Formula | Tracked Since: Dec 28, 2025

Links: Homepage | formulae.brew.sh

Category: Developer tools

Tags: http replay load-testing traffic testing go

Install: brew install gor

About:
Gor is a traffic replay tool written in Go that captures live HTTP traffic from one environment and replays it to another. It enables realistic load testing and staging environment debugging by using production traffic patterns. The tool supports filtering and modifying traffic on the fly for targeted testing scenarios.

Key Features:

Real-time traffic capture and replay
Low overhead performance with Go-based architecture
Traffic filtering and modification capabilities
Support for multiple input/output formats

Use Cases:

Load testing staging environments with production traffic patterns
Debugging production issues by replaying problematic requests
Performance testing with realistic user behavior data
Continuous integration testing with live traffic samples

Alternatives:

tcpreplay – Focuses on packet-level replay rather than HTTP layer, less suited for modern web applications
mitmproxy – Primarily a proxy for interception/modification rather than traffic replay, more complex setup

Version History

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