ASDF vs Mise: Managing Multiple PHP, Node.js and Python Versions in 2026
Developers working across multiple projects often need different runtime versions simultaneously — for example, PHP 7.4 for a legacy app and PHP 8.5 for a current one. Traditionally, separate tools like NVM, Pyenv, and RVM handled each language independently, but unified version managers like ASDF and Mise offer a single interface for all runtimes. ASDF popularised this approach, while Mise builds on it by adding support for environment variables, task running, and project-wide configuration via a mise.toml file. Both tools support PHP, Node.js, and Python on Linux and macOS, with per-project version pinning via a .tool-versions file. For new environments in 2026, Mise is increasingly preferred for its broader feature set, though ASDF remains a solid choice for projects already using its ecosystem.
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