Field Length Checker is a Chrome extension designed for quality assurance professionals, developers, and anyone who frequently fills out online forms. This free add-on provides real-time insights into input field constraints, displaying the maximum length and current character count as users type. It features an intuitive interface that allows users to quickly assess field requirements without the need for inspecting elements or reviewing documentation.

Key features include a visual indicator system that uses color codes to signal the status of input fields, such as green for requirements met, yellow for approaching limits, and red for exceeding limits. Additionally, it tracks minimum length requirements and displays any regex patterns present. The extension is easy to toggle on and off via a toolbar button and operates seamlessly across all websites without collecting any user data.