AutoCannon is an HTTP/1.1 benchmarking tool written in Node.js. It can simulate high traffic in an application.
It seeks inspiration from wrk and wrk2.
This is free and open source software.
Key Features
- Support for HTTP pipelining.
- Support for HTTPS.
- Choose the number of concurrent connections, number of pipelined requests, number of seconds to run, number of worker threads, number of seconds before timing out, and more.
- API.
- Outputs data in tables showing:
- Latency – lists the request times at the 2.5% percentile, the fast outliers; at 50%, the median; at 97.5%, the slow outliers; at 99%, the very slowest outliers together with an average time,.
- Request volume – lists the number of requests sent and the number of bytes downloaded. These values are sampled once per second. Higher values mean more requests were processed
Website: github.com/mcollina/autocannon
Support:
Developer: Matteo Collina
License: MIT License

AutoCannon is written in JavaScript. Learn JavaScript with our recommended free books and free tutorials.
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| AutoCannon | Fast HTTP/1.1 benchmarking tool |
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| FunkLoad | Web testing tool in the same spirit as Perl's WWW::Mechanize |
Read our verdict in the software roundup.
Explore our comprehensive directory of recommended free and open source software. Our carefully curated collection spans every major software category.This directory is part of our ongoing series of informative articles for Linux enthusiasts. It features hundreds of detailed reviews, along with open source alternatives to proprietary solutions from major corporations such as Google, Microsoft, Apple, Adobe, IBM, Cisco, Oracle, and Autodesk. You’ll also find interesting projects to try, hardware coverage, free programming books and tutorials, and much more. Discovered a useful open source Linux program that we haven’t covered yet? Let us know by completing this form. |

