What is Mise — Dev Tool Manager for Every Language?

One tool to manage Node, Python, Ruby, Go, Rust, and 100+ dev tool versions. Replaces nvm, pyenv, rbenv. 26K+ GitHub stars.

Is Mise — Dev Tool Manager for Every Language free to use?

Yes. Mise — Dev Tool Manager for Every Language is freely available on TokRepo. Check the Source & Thanks section on the asset page for the specific open-source license.

How do I install Mise — Dev Tool Manager for Every Language?

Visit the asset page on TokRepo and click "Copy for agent" to get the installation instructions. Most assets can be installed with a single command.

Mise — Dev Tool Manager for Every Language

Mise ("meez") is a polyglot dev tool version manager with 26,300+ GitHub stars that replaces nvm, pyenv, rbenv, goenv, rustup, and dozens of other version managers with a single tool. Manage Node.js, Python, Ruby, Go, Rust, Java, and 100+ tools from one CLI. Mise also handles environment variables and task running — making it a complete development environment manager. For AI projects that need Python (ML), Node.js (frontend), and Go (backend) in the same repo, Mise ensures everyone on the team uses the exact same versions.

Works with: Node.js, Python, Ruby, Go, Rust, Java, .NET, PHP, Terraform, kubectl, and 100+ tools. Best for polyglot teams and AI projects that span multiple languages. Setup time: under 1 minute.

Mise Features

100+ Supported Tools

Category	Tools
Languages	Node.js, Python, Ruby, Go, Rust, Java, .NET, PHP, Elixir, Zig
Cloud	Terraform, kubectl, helm, aws-cli, gcloud, az
Databases	PostgreSQL, MySQL, Redis, MongoDB tools
Dev Tools	jq, yq, shellcheck, hadolint, actionlint
AI/ML	Python, uv, pipx, conda

Per-Project Versions

cd project-a
mise use python@3.11  # This project uses 3.11

cd ../project-b
mise use python@3.12  # This project uses 3.12

# Mise auto-switches when you cd between directories

Environment Variables

# .mise.toml
[env]
DATABASE_URL = "postgresql://localhost/mydb"
OPENAI_API_KEY = "{{env.OPENAI_API_KEY}}"  # From parent env
DEBUG = "true"

Task Runner

# .mise.toml
[tasks]
dev = "npm run dev"
test = "pytest tests/"
lint = "ruff check . && biome check src/"
deploy = "bash deploy.sh"
train = "python train.py --epochs 10"

mise run dev
mise run test
mise run deploy

Compatibility

Mise reads existing config files:

.nvmrc (Node.js)
.python-version (pyenv)
.ruby-version (rbenv)
.tool-versions (asdf)

Speed

Written in Rust, Mise is significantly faster than asdf (the tool it replaces):

Shell startup: ~5ms (vs asdf's ~200ms)
Tool install: parallel downloads

FAQ

Q: What is Mise? A: Mise is a polyglot dev tool version manager with 26,300+ GitHub stars. One CLI to manage Node.js, Python, Go, Rust, and 100+ tool versions, plus env vars and task running.

Q: How is Mise different from asdf? A: Mise is a Rust rewrite of the asdf concept, 40x faster shell startup, with built-in env var management and task runner. Compatible with asdf plugins.

Q: Is Mise free? A: Yes, open-source under MIT license.