> ## Documentation Index > Fetch the complete documentation index at: https://mintlify.com/dotandev/envcheck/llms.txt > Use this file to discover all available pages before exploring further.

Stop "Works on My Machine" Problems

Fast, declarative environment validation for tools, versions, environment variables, and ports. Built in Rust for speed and reliability. 

              
                {`$ envcheck

                                Running environment checks...

                                ✓ node 18.17.0 found
                                ✓ docker found
                                ✗ DATABASE_URL is not set
                                Set DATABASE_URL environment variable
                                ✓ Port 3000 is available
                                ✓ .env exists

                                --- 1 issue(s) found. Fix them to continue.`}

Get Started in Minutes

Install envcheck and validate your development environment with a simple YAML configuration.

Install envcheck using cargo or download from releases: ```bash theme={null} cargo install envcheck ``` Generate a default `.envcheck.yaml` configuration file: ```bash theme={null} envcheck init ``` This creates a starter configuration you can customize for your project. Run envcheck to validate your environment: ```bash theme={null} envcheck ``` You'll see clear, colored output showing which checks passed and which need attention.

Comprehensive Environment Validation

Everything you need to ensure development environments are consistent across your team.

Check if required tools are installed and verify versions using semver comparison. Validate that required environment variables are set and optionally match regex patterns. Ensure critical ports are available before starting your application. Verify required files exist and have correct permissions. Check connectivity to external services and APIs. JSON output format for seamless integration with CI/CD pipelines.

Ready-to-Use Examples

Jump-start your configuration with examples for popular stacks.

Built by the Community, for the Community

envcheck is an open-source project designed to be community-driven. We welcome contributions of all kinds — from bug reports to new validators.