What is asdf?
asdf is a version manager that handles multiple languages and tools with a single interface. Instead of installing nvm for Node, pyenv for Python, and rbenv for Ruby, asdf manages them all with consistent commands and a plugin system. With over 600 plugins available, asdf covers almost every runtime and tool you might need. Project-specific versions are specified in a `.tool-versions` file that can be committed to Git, ensuring everyone uses the same versions. For developers working with polyglot codebases, asdf simplifies version management dramatically. The learning curve is gentle - if you've used any version manager, asdf feels familiar. It integrates with popular shells and works on macOS and Linux.
Pros
- One tool for all languages
- 600+ plugins
- .tool-versions file
- Git-friendly configuration
- Active community
- Shell integration
Cons
- Plugin quality varies
- Slower than native managers
- Some edge cases with plugins