Platform · 2012–2018 · Cloud Scale
Grunt
The first JavaScript task runner that made config files a lifestyle. Gulp and webpack ate its lunch.
Why Grunt faded
Grunt faded because streaming pipelines and bundler-native workflows made its plugin graph feel like XML config in disguise. It won the "we need automation" moment then lost the "this is too slow" follow-up. Archaeology dig: thousands of Gruntfiles still run nightly builds somewhere.

Compare with
Related
Platform · 2013–2019
Gulp
Streaming build pipelines with code-over-config aesthetics. Briefly cool; webpack became the sun.
Platform · 2012–2023
Webpack
The bundler that taught JavaScript developers what suffering means. Still under legacy apps; Vite owns greenfield.
Platform · 2012–2017
Bower
Front-end package manager before npm figured out flat dependency trees. jQuery plugins as a service.