Documentation

Installation

npm install -g previewhost

Requires Node.js 22.23 or later. Supports macOS, Linux and Windows.

First preview with CLI

previewhost inspect
previewhost start --allow-exec
previewhost dashboard

MCP for coding agents

Register Previewhost as an MCP server so agents can start previews, check logs and manage environments directly.

preview.yaml

Define services, commands, dependencies, databases and secrets in a single configuration file.

Databases & Redis

Managed PostgreSQL and Redis instances with isolated data per preview environment.