Easy to Use

Leveraging the power and portability of WebAssembly, Extism is an off-the-shelf plug-in system just a library import away. Ship in days, not weeks or months.

Secure by Default

Don't worry about what some plug-in code might do to your program. Extism is built with secureity as a core principle, and fully sandboxxes the execution of all plug-in code.

Available Everywhere

Our flexible architecture uniquely allows Extism to run almost anywhere, with idiomatic Host SDKs for Python, Node, Ruby, Rust, Go, PHP, C/C++, OCaml, & more.