# Wasmer JS Reference API

Wasmer offers multiple packages for Node and Browser environments:

{% content-ref url="reference-api/wasmer-wasi" %}
[wasmer-wasi](https://jubianchi.gitbook.io/wasmer-docs/fix-python-summary/integrations/js/reference-api/wasmer-wasi)
{% endcontent-ref %}

{% content-ref url="reference-api/wasmer-wasmfs" %}
[wasmer-wasmfs](https://jubianchi.gitbook.io/wasmer-docs/fix-python-summary/integrations/js/reference-api/wasmer-wasmfs)
{% endcontent-ref %}

{% content-ref url="reference-api/wasmer-wasm-transformer" %}
[wasmer-wasm-transformer](https://jubianchi.gitbook.io/wasmer-docs/fix-python-summary/integrations/js/reference-api/wasmer-wasm-transformer)
{% endcontent-ref %}

{% content-ref url="reference-api/wasmer-wasm-terminal" %}
[wasmer-wasm-terminal](https://jubianchi.gitbook.io/wasmer-docs/fix-python-summary/integrations/js/reference-api/wasmer-wasm-terminal)
{% endcontent-ref %}