All Tools

Find your optimal bedtime or wake-up time based on 90-minute sleep cycles. Wake up refreshed by timi...

Check blood type compatibility for donation, transfusion, and pregnancy. Instantly see if blood type...

Calculate your Body Mass Index instantly. See your health category, healthy weight range, and get pe...

Calculate your daily calorie needs using TDEE and BMR formulas. Get macro breakdown and weight goal...

Estimate your body fat percentage using Navy, BMI-based, or RFM methods. View health classification,...

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

Calculate your daily protein, carbs, and fat needs based on your body stats, activity level, and fit...

Scan and decode barcodes from images or your camera. Supports EAN-13, UPC-A, Code 128, and many more...

Test your game controller buttons, joysticks, triggers, D-pad, and vibration. Supports Xbox, PlaySta...

Create customizable QR codes for URLs, WiFi, contacts, email, SMS, locations, events, and crypto add...

Scan and decode QR codes from images or your camera. Instantly detects URLs, WiFi credentials, conta...

Generate multiple QR codes at once from a text list or CSV file. Customize colors, size, and downloa...