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Free Load Testing Tools
| Tool | License | Platform/requirements | Website | Comments |
|---|---|---|---|---|
| The Grinder | LGPL | Java | http://grinder.sourceforge.net | Popular tool, flexible scripting in Jython, active community |
| OpenSTA | GPL | Windows NT4+/XP/2000 (MFC VC++ application) | http://opensta.org | Testing framework with lots of features, popular for being one of few free tools with decent GUI |
| curl-loader | GPL | Linux 2.4+ (2.6 recommended) | http://curl-loader.sourceforge.net | High-performing tool using libCURL |
| Apache bench (ab) | Apache | Included in Apache dist | http://httpd.apache.org/docs/2.2/programs/ab.html | Command-line tool. Good for quick, basic tests |
| Pylot | GPL | Python | http://www.pylot.org | Python-based tool |