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Algernon vs OpenResty: catalog facts
Algernon	OpenResty
Free Free and open source under the MIT licence.	Free Free and open source; the company sells separate commercial products.
Windows, Self-hosted, Command line	Windows, Self-hosted
Single self-contained executable HTTP/2 and QUIC support	Scripts Nginx request handling in Lua Bundles many Lua libraries and Nginx modules
Smaller ecosystem than mainstream web servers Lua-based scripting may be unfamiliar	Requires familiarity with Nginx configuration and Lua Homepage also promotes paid commercial products
Downloadable app, Self-hosted	Downloadable app, Self-hosted
Open source	Open source
License: MIT	License: BSD-2-Clause
No account needed	No account needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked October 2, 2026

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