EnvMate by knktc

EnvMate helps developers and QA teams distinguish visually similar development, testing, staging, and production systems.

Define URL rules and grouped environments, then mark matched pages with badges, watermarks, breathing edge glow, and optional page-title prefixes. Use Quick Access to open configured environment homepages, import configurations from a file or a user-provided URL, and temporarily edit visible page text for testing and screenshots.

Store test accounts locally and fill compatible login fields only after an explicit user action. EnvMate never submits forms or clicks login buttons automatically. It does not include analytics, advertising, remote account synchronization, or a developer backend.

Test account passwords are stored locally and are not strongly encrypted. Use this feature only on trusted browser profiles and machines.