Side by side
Google Closure Compiler vs Rslib
Both stand on javascript build tools. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Free plan LinuxMacSelf-hosted+1
Closure Compiler combines JavaScript optimization with code checks and offers several ways to integrate it into a workflow. Its documented input restrictions and maintenance status for ES6 import/export are worth considering before adoption.
Visit Google Closure Compiler Free plan APILinuxMac+2
Choose Rslib for JavaScript packages or UI component libraries when its output formats, framework integrations, and plugin support fit your build. Look elsewhere if you need declaration files generated without enabling that option or cannot meet the Node.js requirement for v1.
Visit RslibThe facts
| Google Closure Compiler | Rslib | |
|---|---|---|
| Free plan | Yes | Yes |
| Open source | Not published | Not published |
| Runs on | Linux, Mac, Self-hosted, Windows | API, Linux, Mac, Web, Windows |
| Lowest paid plan | Free or on request | Free or on request |
| Plans published | 1 | 1 |
| Maker | Not published | Not published |
| Website | developers.google.com | lib.rsbuild.dev |
| On javascript build tools | #2 of 27 | #6 of 27 |
Google Closure Compiler: what it does well
- Offers multiple compilation levels
- Checks syntax, references and types
- Available through Java, Bazel and NPM
- Includes a NodeJS API
What to know first
- Building requires Java 21 or later, NodeJS, Git and Bazelisk
- Input restrictions include goog.module() and goog.require()
- ES6 import/export support is not actively maintained
- ADVANCED optimization requires care to preserve behavior
Rslib: what it does well
- Builds ESM, CJS, UMD, Module Federation, and IIFE outputs.
- Supports bundle and bundleless build modes.
- Framework integrations cover React, Vue, Svelte, and Solid.
- Works with Rsbuild, Rspack, and webpack plugins.
- MIT-licensed and free to use.
What to know first
- TypeScript declaration generation is off by default.
- Rslib v1 requires Node.js 20.19+ or 22.12+.
Alternatives to Google Closure Compiler Alternatives to Rslib The whole list