hey ☆
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Description:
HTTP load generator, ApacheBench (ab) replacement
Type: Formula  |  Latest Version: 0.1.4@0  |  Tracked Since: Dec 24, 2025
Links: Homepage  |  GitHub  |  formulae.brew.sh
Stars: 19,600  |  Forks: 1,278  |  Language: Go  |  Category: Developer tools
Tags: http benchmark load-testing go developer-tool
Install: brew install hey
About:
Hey is a modern HTTP load generator written in Go, designed as a more feature-rich and user-friendly alternative to ApacheBench (ab). It allows developers to easily benchmark web servers and APIs by generating configurable HTTP traffic, providing detailed latency statistics and result analysis.
Key Features:
  • Configurable concurrency and request rate
  • Detailed latency distribution and statistics
  • HTTP/2 support
  • Ability to send custom headers and payloads
  • Color-coded terminal output for readability
Use Cases:
  • Benchmarking and performance testing of web applications and APIs
  • Load testing to determine system breaking points and scalability
Alternatives:
  • ApacheBench (ab) – Hey provides more detailed statistics, HTTP/2 support, and a more modern CLI.
  • wrk – Hey is generally easier to use and configure for quick tests, while wrk offers higher performance via Lua scripting.
Version History
Detected Version Rev Change Commit
Dec 24, 2025 11:10am 0.1.4 0 VERSION_BUMP c9581a45
Oct 28, 2025 10:40pm 0 VERSION_BUMP d59f8b17
Jan 12, 2025 3:00pm 0 VERSION_BUMP 44ec383a
Nov 19, 2022 8:05pm 0 VERSION_BUMP a28e6664
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