AIQualityHQ is a free browser based tool designed to evaluate and improve the quality of prompts used with large language models. Its primary function is to analyze prompt text across six core dimensions: structure, clarity, safety, privacy, memory, and context. The tool provides deterministic scores and specific pass/fail diagnostics for each dimension, helping users identify issues such as prompt injection vulnerabilities, hallucination risks from missing context, potential exposure of personally identifiable information (PII), and inconsistencies from poorly structured instructions. The tool operates entirely within the user's browser, performing analysis without sending data to external servers or making paid API calls. Its local engine uses static syntax checking, structure heuristics, and rule based analysis to deliver results in under 10 milliseconds. Key features include instant quality scores, actionable fix suggestions with a diff view for comparing changes, and the ability to export results. No account creation or signup is required to use the service. Typical use cases involve developers, content creators, and AI application builders who need to validate prompts before deployment. The workflow consists of three simple steps: pasting a prompt into the checker, running the quality analysis, and reviewing the detailed diagnostics and optimization recommendations. The tool also includes example prompts to help users get started. AIQualityHQ is accessible at aiqualityhq.com and includes supplementary resources such as documentation, articles, and guides on prompt quality dimensions.