Here are some practical web tools I've personally built and launched. All of them are free to use, load instantly, respect your privacy (most work completely in the browser without sending any data to servers), and solve real everyday problems for different groups of people.
RenovationCostCalc.com
A complete free online suite of renovation and construction cost estimators. Homeowners, contractors, interior designers and DIY enthusiasts rely on it to quickly calculate realistic budgets for kitchens, bathrooms, full home remodels, flooring projects, roofing, painting, electrical work and many other common renovations. The tool uses up-to-date material and labor price ranges (with the ability to adjust them), provides itemized breakdowns and gives a clear total estimate — helping people plan renovations smarter and avoid expensive surprises.
Use Renovation Cost CalculatorSportyCalc.com
A growing collection of science-based fitness, body composition and performance calculators. You'll find tools for BMI, BMR, TDEE, daily calorie needs, macronutrient split, body fat percentage (multiple methods), one-rep max estimation, heart rate training zones, calorie burn during activities, ideal weight ranges, lean body mass and several more. Everything is calculated instantly in your browser — perfect for gym-goers, athletes, personal trainers, nutrition coaches and anyone who tracks health & fitness metrics seriously without wanting to install yet another app.
Use Sports & Fitness CalculatorsGPAFind.com
A flexible and accurate GPA calculator designed for students around the world. It supports both unweighted and weighted scales (including honors, AP, IB and other bonus systems), lets you use custom grading scales from different countries, tracks semester-by-semester progress, calculates current GPA + cumulative GPA, helps plan what grades you need to reach a target GPA, and allows exporting results as PDF. All data stays in your browser — no account needed. Ideal for high school students, college undergraduates, international applicants and anyone who needs a reliable academic performance tool.
Use GPA & Academic ToolsThese tools are just a few examples of the kind of useful, no-nonsense web applications I enjoy creating.
Want something similar built for your idea?
If you like this style of practical, clean and user-focused product and want something similar built for your own idea — feel free to reach out. I'd be happy to discuss your project.