All Tools

Find your waist-to-hip ratio (WHR) and see your WHO risk category, body shape (apple or pear), and a separate waist circumference risk check on a visual gauge.

Format, minify, and validate JSON instantly with syntax highlighting, a collapsible tree view, and real-time error detection.

Convert JSON arrays to CSV with table preview, nested object flattening, and customizable comma, tab, semicolon, or pipe delimiters.

Find out how much water to drink each day based on your weight, activity, and climate. Get results in liters, ml, oz, and glasses, plus an hourly drinking schedule.

Find your best bedtime or wake-up time based on 90-minute sleep cycles, so you wake at the end of a cycle feeling refreshed instead of groggy.

Check blood type compatibility for donation, transfusion, and pregnancy. Instantly see if blood types match, find compatible donors, and assess Rh factor risk for expecting parents.

Calculate your Body Mass Index from weight and height. See your health category on a visual gauge, plus your healthy weight range and personalized tips.

Find how many calories to eat each day to lose, maintain, or gain weight. Get your TDEE, BMR, goal targets, and a macro breakdown from your body and activity level.

Estimate your body fat percentage using Navy, BMI-based, or RFM methods. See your health category, fat mass, lean mass, and FFMI.

Calculate your ideal body weight using four medical formulas — Devine, Robinson, Miller, and Hamwi — and see your recommended weight range instantly.

Calculate your daily protein, carbs, and fat needs from your body stats, activity level, and fitness goal. Supports Standard, High Protein, Low Carb, and Keto diet plans.

Scan and decode barcodes online from an image or your camera. Reads EAN-13, UPC-A, Code 128, QR codes and many more formats instantly.