head to head · open source
esbuild vs cuber-gem
esbuild has 40,120 GitHub stars, 1,368 forks, 622 open issues and last shipped 3 months ago. cuber-gem has 711 stars, 27 forks, 7 open issues and last shipped 7 months ago. esbuild leads on adoption by 5,543% (40,120 vs 711 stars). esbuild is written in Go under MIT; cuber-gem is written in Ruby under Apache-2.0. esbuild has attracted 3% as many forks as stars, cuber-gem 4%. esbuild was the more recently maintained of the two, and both are self-hostable with no licence fee.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| esbuild | cuber-gem | |
|---|---|---|
| GitHub stars | ★ 40K | ★ 711 |
| License | MIT | Apache-2.0 |
| Written in | Go | Ruby |
| Last push | 2026-08-09 | 2026-04-12 |
| Forks | ⑂ 1.4K | ⑂ 27 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick esbuild if
- You weight community size — 40K stars and counting
- You want the MIT license terms
- Your stack matches Go
- You value the larger contributor base for long-term maintenance
pick cuber-gem if
- You want the cuber-gem feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Ruby
- You evaluated both and cuber-gem fits your workflow better
About esbuild
Website Getting started Documentation Plugins FAQ Why? Our current build tools for the web are 10 100x slower than they could be: The main goal of the esbuild bundler project is to bring about a new era of build tool performance, and create an easy to use modern bundler along the way. Major features: Extreme speed without needing a cache JavaScript, CSS, TypeScript, and JSX built in A straightforward API for CLI, JS, and Go Bundles ESM and CommonJS modules Bundles CSS including CSS modules Tree shaking, minification, and source maps Local server, watch mode, and plugins Check out the getting started instructions…
read the full esbuild overview →
About cuber-gem
CUBER Deploy your apps on Kubernetes easily. What is Cuber? Cuber is an automation tool (written in Ruby) that can package and deploy your apps (written in any language and framework) on Kubernetes. Unlike other tools that add more options and more complexity to Kubernetes, Cuber is made to simplify and reduce the complexity, thus making the deployment process more standardized and reliable. You just need to create a Cuberfile , with 10 lines of code, and then type cuber deploy to package and deploy your app on any Kubernetes cluster. Kubernetes is up to 80% cheaper compared to PaaS like Heroku and you can…
read the full cuber-gem overview →
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Frequently asked questions
Is esbuild or cuber-gem more popular?
esbuild has 40,120 GitHub stars and cuber-gem has 711. esbuild has the larger community by that measure.
Are esbuild and cuber-gem free?
Both are open source. esbuild is licensed under MIT and cuber-gem under Apache-2.0. Neither carries a licence fee.
What is the difference between esbuild and cuber-gem?
esbuild is written in Go and cuber-gem in Ruby. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, esbuild or cuber-gem?
Choose esbuild if you want the larger community (40,120 stars) or its MIT licence terms. Choose cuber-gem if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.