Free Water Quality Checker

Instant pH, TDS, Turbidity & basic safety analysis — client-side, free

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Drinking-water ideal: 6.5–8.5
WHO guideline often <500
Lower is better; ideal <1 NTU
Target often 0.2–0.5 mg/L
WHO limit 50 mg/L
Soft <150 ppm, hard >300 ppm
Tip: This is an informational, client-side tool. For legal/medical decisions, consult a certified lab or local water authority.

Quick guidance & actions

  • If pH is outside 6.5–8.5: consider buffering; check corrosion risk.
  • High TDS: tastes salty; consider RO or blending; test specific ions.
  • High Turbidity: may protect microbes from disinfection — treat first.
  • Low/No Chlorine: risk of bacterial regrowth — shock chlorination or contact authority.
  • High Nitrate: health risk for infants — avoid for formula and consult health dept.
  • Very hard water: scaling; use softeners for appliances.

About this checker

Free & offline — all processing happens in your browser. Values and thresholds are general guidance and may vary by country.