Cloud Env Marker is a browser extension designed to enhance usability across AWS, GCP, and Azure platforms by adding color-coded headers to their consoles. This tool helps users quickly identify production, staging, and development environments, reducing the risk of operational errors. With a straightforward installation process, users can define rules based on their cloud account identifiers or use Quick Presets for immediate setup.

Key features include multi-cloud support, flexible pattern matching for environment identification, and the ability to customize colors for each environment. Additionally, the Pro version offers team sharing capabilities, allowing for the export and import of rule sets. The extension is lightweight, ensuring smooth operation in the browser without unnecessary network requests, making it a valuable tool for DevOps engineers and cloud practitioners.