nvm is a free, MIT-licensed command-line tool for installing and using different Node.js versions.
Alternatives to fnm
GHCup is an installer and version manager for the Haskell toolchain.
Jabba is a free, open-source Java version manager written in Go for installing and switching between JDK versions on macOS, Linux, and Windows.
- 4

rustup
rustup installs Rust from official release channels and helps developers manage the compiler versions and supporting tools they use.
Free planLinuxmacOSWindows6.6Free plan - 5
axe-playwright
axe-playwright connects the axe-core accessibility testing engine to Playwright tests.
Free planWebLinux6.4Free plan - 66.2Free plan
- 7

mise
mise is an open-source tool for managing development tools, environment variables, and project tasks through a project configuration file.
Free planLinuxmacOSWindows6.2Free plan - 8
ClearerVoice-Studio
ClearerVoice-Studio is a free, open-source AI toolkit for speech processing.
WebLinuxmacOSSelf-hosted6.1 - 96.1Free plan
- 10
nodenv
nodenv manages Node.js versions so you can use different versions for projects on the same machine.
Free planLinuxmacOS6.1Free plan - 11
perlbrew
perlbrew is a free, open-source tool for managing multiple Perl installations without administrator privileges.
Free planLinuxmacOSSelf-hosted6.1Free plan - 12
plenv
plenv is a free Perl version manager that lets users select the interpreter an application uses, helping align development with production.
Free planLinuxmacOS6.1Free plan - 13
RVM
RVM is a command-line tool for installing and managing multiple Ruby environments, from interpreters to gem sets.
WebLinuxmacOSSelf-hosted6.1 - 14
chruby
chruby is a command-line tool for selecting the Ruby version used in a shell.
Free planLinuxmacOS6.0Free plan - 15
elan
elan manages installations of the Lean theorem prover on Linux, macOS, and Windows.
Free planLinuxmacOSWindows6.0Free plan - 16
goenv
goenv manages Go versions on Linux and macOS, with choices for a global setup, a particular project, or an environment-variable override.
Free planLinuxmacOS6.0Free plan - 17
pyenv
pyenv is a free, MIT-licensed tool for switching between Python versions on Linux/Unix-like systems and macOS.
Free planLinuxmacOSSelf-hosted6.0Free plan - 18
rbenv
rbenv manages Ruby versions on Linux and macOS, letting projects use the version they require.
Free planLinuxmacOS6.0Free plan - 19

SDKMAN!
SDKMAN! is a free command-line tool and API for managing Software Development Kits in the JVM ecosystem.
APILinuxmacOSWindows6.0 - 20
SteamTinkerLaunch
SteamTinkerLaunch is a free Linux wrapper for Steam that provides graphical configuration for game tools and launch options.
Free planLinux5.9Free plan - 21
PHPBrew
PHPBrew is a free tool for building and managing multiple PHP versions in a user’s home directory, including for users without root permission.
Free planLinuxmacOSSelf-hosted5.8Free plan - 22
tenv
tenv is a free Go version manager for OpenTofu, Terraform, Terragrunt, Terramate and Atmos.
LinuxmacOSWindows5.8 - 235.8
- 24
jEnv
LinuxmacOS5.6 - 25
Volta
Volta manages JavaScript command-line tools and can keep a project on a specified Node version.
LinuxmacOSWindows5.6 - 26
DVM
LinuxmacOSWindows5.5 - 27
juliaup
LinuxmacOSWindows5.5 - 28
xNVSE
xNVSE is a free Windows project that expands Fallout: New Vegas engine and scripting capabilities for modders and script authors.
Windows5.4 - 29
eselect-python
Linux4.4