Side by side
jEnv vs pyenv
Both stand on runtime version managers. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Free plan LinuxMac
jEnv provides version selection and project pinning for Java installations already on a machine. Its lack of Java installation and the documented Fish caveat should shape setup plans.
Visit jEnv Free plan LinuxMacSelf-hosted
pyenv provides flexible Python version selection across supported systems and distributions. Users should account for source-build requirements and use another tool for virtual environments.
Visit pyenvThe facts
| jEnv | pyenv | |
|---|---|---|
| Free plan | Yes | Yes |
| Open source | Not published | Not published |
| Runs on | Linux, Mac | Linux, Mac, Self-hosted |
| Lowest paid plan | Not published | Free or on request |
| Plans published | None | 1 |
| Maker | Not published | Not published |
| Website | jenv.be | github.com |
| On runtime version managers | #20 of 30 | #16 of 30 |
jEnv: what it does well
- Global, directory, and shell version selection
- Project .java-version files
- JAVA_HOME export plugin
- Build-tool integration plugins
- Open-source project
What to know first
- Does not install Java
- Supports Linux and macOS only
- Fish support is reported as problematic
- Fish support is untested by maintainer
pyenv: what it does well
- Selects global, project, or environment-based Python versions.
- Supports multiple Python distributions.
- Keeps multiple installed versions available at once.
- Extensible through plugins.
- Free and MIT-licensed.
What to know first
- Does not officially support Windows outside WSL.
- Does not manage virtual environments itself.
- Most provided Python releases require source builds and dependencies.