Kiki Bundler (current stable version 1.9.3) is an opinionated frontend asset bundler primarily focused on rapid Sass compilation. Designed to address slow build times in legacy projects, it provides a fast, out-of-the-box experience with minimal configuration, significantly improving incremental build performance compared to tools like Grunt with Ruby-Sass or even Libsass directly. The project, while having its last significant updates around 2017, features built-in Autoprefixer support for vendor prefixing and includes a command-line interface for common `build` and `watch` tasks. It distinguishes itself by its speed optimizations for Sass workflows, aiming to reduce compilation times from seconds to milliseconds for incremental changes. However, as of 2026, the project appears to be unmaintained.
npm install kiki-bundlerVerified import paths — ran on the pinned version, not inferred.
Demonstrates how to set up Kiki Bundler with a `kiki.config.json` file and run `build` and `watch` commands via npm scripts, compiling a simple Sass file.
Review your CSS output and configuration (`addVendorPrefixes`) if you were relying on automatic prefix removal in older versions. Adjust your Sass or PostCSS setup accordingly.
If specific CSS minification features or behaviors previously provided by `cssnano` are required, integrate `cssnano` or an alternative minifier into your build pipeline separately. Be aware of the original safety concerns mentioned by the package author.
Update build scripts and CI/CD configurations to check `stderr` for error output and properly handle non-zero exit codes for failed builds.
Ensure `kiki-bundler` is installed as a `devDependency` or upgrade to `v1.9.0` or later, which includes a fix to ensure `yargs` is correctly bundled or listed as a production dependency.
Consider migrating to actively maintained bundlers like Webpack, Rollup, or Vite for projects requiring ongoing updates, security patches, and support for modern development environments. Use with caution in new projects.
Run `kiki` via `npm run <script_name>` (e.g., `npm run build`), or use `npx kiki <command>`, or ensure `node_modules/.bin` is in your system's PATH.
Create `kiki.config.json` in your project's root directory or specify its path using `kiki <command> -c my-custom-config.json`.
Review your Sass files (within the `src` directory specified in `kiki.config.json`) for typos or missing `@import` statements for the necessary variables, mixins, or partials.