asdf vs jEnv
asdf
asdf-vm.comjEnv
jenv.beSide by side
| Figure | asdf | jEnv |
|---|---|---|
| Price from | Free | — |
| Free plan | Yes | — |
| Free trial | — | — |
| Open source | — | — |
| macOS | Yes | Yes |
| Linux | Yes | Yes |
| Plans published | 1 | 0 |
| Spec score · Runtime Version Managers | 8.1 (#6) | 7.1 (#24) |
| Spec score · Development Environment Managers | 8.0 (#15) | 7.1 (#43) |
| Installation | The getting-started guide describes installation through Homebrew, Zypper, Pacman, precompiled binaries, Go, or a source build. | The maker’s site documents source installation on Linux and OS X, and Homebrew installation on Mac OS X. |
| Purpose | asdf is a tool version manager that uses one `.tool-versions` file to share exact tool versions with a project team. | jEnv is a command-line tool for managing Java environments and switching between Java versions. |
| Shell support | The homepage lists Bash, ZSH, Fish, and Elvish support with completions available. | The documentation gives setup instructions for Bash, Zsh, and Fish shells. |
Plans
In their own words
asdf
asdf is a free, open-source version manager for Linux and macOS. It gives project teams one command interface and a shared `.tool-versions` file for selecting exact versions of multiple tools and runtimes. Plugins support tools such as Node.js, Ruby, and Elixir, while the plugin API allows additional tools. When a command runs, asdf searches for configuration from the current directory upward toward the home directory, then uses shims to launch the selected executable. Existing `.ruby-version`, `.nvmrc`, and `.node-version` files can be supported per plugin. Listed shell support includes Bash, ZSH, Fish, and Elvish, with completions. A GitHub Action uses `.tool-versions` in CI/CD workflows. Installation options include Homebrew, Zypper, Pacman, precompiled binaries, Go, and source builds. asdf manages tool versions rather than system packages or upstream dependencies. If no version is set, execution errors unless the tool is configured as `system`.