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Bower

Deprecated

Do not use for new projects. Use npm instead.

What is it​

Bower was a client-side package manager (2012–2017) that managed frontend dependencies by installing them into a bower_components directory.

Why it's deprecated​

  • Officially deprecated since 2017 — the Bower team themselves recommend switching to npm.
  • npm handles frontend packages natively — modern npm + ESM + bundlers eliminated the need for a separate frontend package manager.
  • No tree-shaking or module support — Bower predates ES modules.
  • Unmaintained — no meaningful updates since 2017; security vulnerabilities go unpatched.
  • Zero ecosystem support — no modern tooling, framework, or tutorial references Bower.

npm

Migration path​

  1. For each dependency in bower.json, find the equivalent npm package
  2. Run npm install <package> for each
  3. Update import paths from bower_components/ to standard imports
  4. Delete bower.json, .bowerrc, and bower_components/
  5. Remove any Bower-related build scripts or CI steps

Resources​