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Vegeta vs Siege: catalog facts
Vegeta	Siege
Free Free and open source.	Free Free and open source.
Windows, macOS, Linux, Command line	macOS, Linux, Command line
Constant request rate for predictable load Composable subcommands for attack, report and plot	Tests many URLs at once from a list Configurable number of simulated users
Command line only No built-in scripting for complex user flows	Command line only, with no graphical reports Scripting options are simpler than in newer load testers
Downloadable app	Downloadable app
Open source	Open source
License: MIT	License: GPL-3.0
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked September 24, 2026

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