Free Online Tools

Client-side only utilities from AI 工作術 (Pandora AI): no data uploaded, no sign-up, and every tool keeps working offline. The Chinese site has 120 of them; localized versions are listed below.

• Age Calculator — Free Online Tool
• BMI Calculator — Free Online Tool
• Compound Interest Calculator — Free Online Tool
• Currency Converter — Free Online Tool
• Password Strength Checker — Free Online Tool
• Ratio Calculator — Free Online Tool
• Reading Time Estimator — Free Online Tool
• Unix Timestamp Converter — Free Online Tool
• Unit Converter — Free Online Tool
• Week Number Lookup — Free Online Tool

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