How do I migrate from asdf to mise?

mise provides compatibility with asdf plugin files, but you'll need to convert your .tool-versions to mise.toml manually. Start by installing tools with mise use and gradually update your configuration, as shown in the documentation for tool management.

mise vs direnv which is better for environment variables?

mise integrates environment variable management with tool versioning and tasks, while direnv is more lightweight and focused solely on env vars. Choose mise if you want an all-in-one solution, but direnv might be simpler for env-only needs.

How to set up mise tasks with dependencies?

Define tasks in mise.toml using the depends key, as shown in the example where deploy depends on validate and plan. This allows running tasks in order, similar to make but with a unified config.

Can mise load .env files automatically?

Yes, mise supports loading .env files through env directives in the configuration, as mentioned in the README under environment variable management, making it easy to integrate with existing secret management.

Is mise suitable for Windows development?

mise works on Windows via PowerShell integration, but its tool support might be limited compared to Unix-like systems. Check the registry for Windows-compatible tools, and ensure shell activation is properly configured.

What happens if mise breaks in a CI pipeline?

Since mise is a single tool, failures can halt entire pipelines. It's recommended to test thoroughly and have fallback plans, as the unified approach means dependencies on its stability for tool installation and task execution.

mise — Development Tool Version Manager

What is mise?

mise is a unified command-line tool that manages development tool versions, environment variables, and project tasks from a single configuration file. It solves the problem of using multiple disparate tools (like asdf, direnv, and make) by combining their functionality into one fast and reliable interface, ensuring consistent environments across projects.

Target Audience

Developers and DevOps engineers who work on multiple projects with different tooling requirements and need a consistent way to manage tool versions, environment variables, and automation tasks.

Value Proposition

Developers choose mise for its speed, simplicity, and consolidation of three common dev environment concerns into one tool, reducing setup time and configuration complexity compared to using separate solutions.

Overview

dev tools, env vars, task runner

Use Cases

Best For

Managing multiple versions of programming languages and tools across different projects
Setting up consistent development environments for team projects
Automating build, test, and deployment tasks with dependencies
Loading environment variables and secrets per project directory
Simplifying onboarding for new project contributors
Replacing a combination of asdf, direnv, and make with a single tool

Not Ideal For

Projects already using Docker or containerization for complete environment isolation
Simple, single-language applications where dedicated version managers (e.g., nvm) are sufficient
Teams with mature CI/CD pipelines tightly integrated with specific toolchains
Environments where shell integration is restricted or minimal tooling is mandated

Pros & Cons

Pros

Unified Configuration

Consolidates tool versions, environment variables, and tasks into a single mise.toml file, streamlining project setup as demonstrated in the example configuration for Terraform and AWS.

Broad Tool Support

Manages hundreds of development tools like Node.js, Python, and Terraform, similar to asdf, with installation and version switching shown in the demo.

Seamless Shell Integration

Automatically activates in bash, zsh, fish, and PowerShell via eval commands, ensuring environment variables and tools are loaded per project directory.

Integrated Task Runner

Defines and runs project-specific tasks with dependencies, akin to make, as illustrated in the deploy task that depends on validate and plan.

Cons

Issue Tracking Limitations

Uses GitHub Discussions instead of Issues, which the README admits is due to volume, potentially making bug reporting and feature tracking less structured and slower.

Ecosystem Maturity

As a newer tool, it has a smaller community and fewer third-party plugins compared to established alternatives like asdf or direnv, which might limit integration options.

Configuration Lock-in

Adopting the unified mise.toml file creates vendor lock-in, making it difficult to migrate back to specialized tools without significant reconfiguration effort.

Open Source Alternative To

mise is an open-source alternative to the following products:

nvm

nvm (Node Version Manager) is a command-line tool that allows developers to install and switch between multiple versions of Node.js on a single machine.

make

Make (or GNU Make) is a build automation tool that automatically builds executable programs and libraries from source code by reading Makefiles.

a

asdf

asdf is a CLI tool that manages multiple runtime versions with a single configuration file, supporting languages like Node.js, Ruby, Python, and more.

d

direnv

direnv is a shell extension that automatically loads and unloads environment variables based on the current directory. It uses .envrc files to manage project-specific environment configurations.

p

pyenv

pyenv is a Python version management tool that allows users to install, switch, and manage multiple Python versions on a single system.

mise

What is mise?

Overview

Use Cases

Best For

Not Ideal For

Pros & Cons

Pros

Cons

Open Source Alternative To

Frequently Asked Questions

Related Projects

Found a gem we're missing?

mise

What is mise?

Overview

Use Cases

Best For

Not Ideal For

Pros & Cons

Pros

Cons

Open Source Alternative To

Frequently Asked Questions

Related Projects

Found a gem we're missing?