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wrk vs Bombardier: catalog facts
wrk	Bombardier
Free Free to use under the project’s modified Apache license.	Free Free and open source.
Command line	Windows, macOS, Linux, Command line
Generates substantial load from a single multicore CPU Supports custom LuaJIT scripts	Single Go binary that runs on several platforms Reports throughput and latency for a test run
Requires command-line use High connection counts require enough available ephemeral ports	Command line only, with no graphical interface Tests HTTP load rather than scripted multi-step scenarios
Downloadable app	Downloadable app
Not stated if open source	Open source
License: Modified Apache 2.0 License, Version 2.0.1	License: MIT
Not stated if an account is needed	No account needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked October 8, 2026	Official website Full listing and sources Checked October 1, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.