mise.toml playground

Write a mise.toml here and the editor checks it against the same schema mise and your editor use. Hover any key or value to see what it does, its type and the values it takes, with a link to the mise.toml reference. Start a new line, or press Ctrl+Space, for the keys a table can take, and type [ at the start of a line for the sections. A key mise does not read is underlined with the key it most likely meant, and a value of the wrong kind is marked.

Nothing leaves your browser. Copy link puts the config in the page's address, so you can share it.

min_version = "2026.10.0"

[tools]
node = "24"
python = "3.13"
"github:cli/cli" = "latest"

[env]
NODE_ENV = "development"
_.path = ["./node_modules/.bin"]

[tasks.build]
description = "Build the app"
run = "npm run build"
depends = ["install"]

[tasks.install]
run = "npm install"
sources = ["package.json", "package-lock.json"]
outputs = ["node_modules/.package-lock.json"]

[settings]
experimental = true

To see what each key of a file on disk does, run mise config explain.