Side by side
Bun vs Flux
Both stand on javascript package managers. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Free plan LinuxMacWindows
Bun brings several JavaScript development tools together in one free, MIT-licensed binary. Check its operating system and processor requirements before choosing it.
Visit Bun Free plan LinuxMacWindows
Flux offers a free way to manage packages and scripts for experiments, with a shared cache and standalone binary option. Its alpha limitations make it unsuitable for reproducible installs or shipped projects, according to the maker.
Visit FluxThe facts
| Bun | Flux | |
|---|---|---|
| Free plan | Yes | Yes |
| Open source | Not published | Not published |
| Runs on | Linux, Mac, Windows | Linux, Mac, Windows |
| Lowest paid plan | Free or on request | Free or on request |
| Plans published | 1 | 1 |
| Maker | Not published | Not published |
| Website | bun.sh | flux.gautamsuthar.in |
| On javascript package managers | #2 of 19 | #6 of 19 |
Bun: what it does well
- Runtime supports Node.js APIs and node_modules.
- Package manager supports offline installation.
- Test runner includes coverage and snapshots.
- Bundler handles TypeScript, JSX, CSS, and HTML.
- Free and MIT-licensed.
What to know first
- Requires macOS 13.0 or later.
- Windows support requires version 1809 or later.
- x64 CPUs need SSE4.2 support.
Flux: what it does well
- Uses the npm registry and package.json.
- Shared cache can reuse downloaded package tarballs.
- Standalone binary does not require Node.js.
- MIT licensed for personal and commercial use.
- Runs on Linux, macOS, and Windows.
What to know first
- Installs direct dependencies only.
- No dependency tree resolution or lockfile support.
- Installs are not reproducible.
- Maker says it is not ready for production.