AIQualityHQ

AIQualityHQ is a free, browser-based prompt checker aimed at AI and prompt engineers and development teams. It runs a deterministic rule engine to evaluate prompts and returns quality information very quickly.

The tool scores prompts across six core dimensions — structure, memory, context, trust, privacy and security — and provides diagnostics and practical optimisation suggestions intended to reduce hallucinations and prompt injection vulnerabilities.

• Deterministic rule engine with evaluations under 10 milliseconds
• Instant quality scores and detailed diagnostics
• Actionable suggestions to improve prompts
• Runs entirely in your browser, keeping prompt data private

All processing happens locally in your browser, so, according to the makers, 100% of your prompt data remains private and secure. More information is available at https://aiqualityhq.com/.