head to head · open source
esbuild vs cuber-gem
esbuild has 40,063 GitHub stars, 1,346 forks, 622 open issues and last shipped 1 months ago. cuber-gem has 712 stars, 27 forks, 7 open issues and last shipped 5 months ago. esbuild leads on adoption by 5,527% (40,063 vs 712 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 | ★ 712 |
| License | MIT | Apache-2.0 |
| Written in | Go | Ruby |
| Last push | 2026-08-09 | 2026-04-12 |
| Forks | ⑂ 1.3K | ⑂ 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
esbuild is an MIT licensed, Go based bundler for the web that compiles JavaScript, CSS, TypeScript, and JSX in one tool, aimed at front end developers and teams whose current web build pipelines are slower than they need to be.
read the full esbuild overview →
About cuber-gem
Cuber is an Apache 2.0 licensed, Ruby based automation tool that packages and deploys applications written in any language or framework onto Kubernetes from a roughly ten line Cuberfile and a single cuber deploy command, aimed at developers and small teams who want the simplicity of a platform as a service without its cost or provider lock in.
read the full cuber-gem overview →
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Frequently asked questions
Is esbuild or cuber-gem more popular?
esbuild has 40,063 GitHub stars and cuber-gem has 712. 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 (40,063 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.