faas
n.n. Stands for Function as a Service. A way to run code in the cloud where you only pay for the exact time your code is running, without managing your own servers.
n. Abbreviation for Function as a Service. A cloud computing model that allows developers to execute code in response to events without managing the underlying infrastructure or server instances.
Our team uses FaaS to handle image uploads automatically.
By moving our backend logic to a FaaS model, we significantly reduced our monthly cloud hosting costs because we only pay when the code is triggered.
The adoption of FaaS enables a highly granular scaling architecture, though it introduces challenges such as cold starts and the need for stateless execution logic within the functions.
An initialism for function as a service, patterned after earlier cloud computing models such as Software as a Service (SaaS) and Platform as a Service (PaaS).
Etymology adapted from Wiktionary, available under CC BY-SA 4.0.
Last updated July 22, 2026