About readytool
Free Web Tools & Calculators for Everyone
Our Mission
At readytool, we believe that essential web tools and calculators should be accessible to everyone, completely free, without registration, and with transparency about how we operate.
We've created a collection of useful, well-designed tools that work right in your browser and process your calculation data locally. Your results stay private. We keep our services free through ethical advertising (Google AdSense) and use analytics (Google Analytics) to improve our tools—both with full transparency and user control.
Key Principles: No accounts required, no paywalls, no selling of personal data, full GDPR/CCPA compliance, and you control your privacy settings.
100% Free Forever
All our tools are completely free with no premium tiers, no feature restrictions, and no hidden costs. We're committed to keeping it that way.
What We Offer
readytool provides a growing collection of front-end web tools and calculators designed for everyday use:
- Age Calculator: Calculate exact age, time between dates, and upcoming birthdays
- BMI Calculator: Calculate Body Mass Index with health category insights
- Countdown Timer: Visual countdown with sound alerts and presets
- Hash Generator: Generate MD5, SHA-1, SHA-256, and SHA-512 hashes
- Loan & Mortgage Calculator: Calculate EMI with amortization schedules and charts
- Password Generator: Create strong, secure passwords with customizable options
- Percentage Calculator: Calculate percentages, increases, decreases, and more
- QR Code Generator: Generate custom QR codes with colors and logos
- Random Picker: Pick random names, numbers, or items from lists
- Unit Converter: Convert length, weight, temperature, and more
- US Tip Calculator: Calculate tips and split bills easily
Why Choose readytool?
Privacy First
All calculations happen in your browser. We don't collect your calculation data. Your results stay private and never reach our servers.
Always Free
100% free forever, supported by ads. No premium tiers, no feature restrictions, no trial periods. Every tool is fully functional at no cost.
Mobile Friendly
Fully responsive design that works flawlessly on phones, tablets, and desktops. Use our tools anywhere, anytime.
No Registration
Start using tools immediately. No account creation, no email verification, no login required. Just open and use.
Dark Mode
Eye-friendly dark mode available on all tools. Your theme preference is saved locally for convenience.
Fast & Lightweight
Optimized for performance with minimal dependencies. Tools load instantly and work offline after loading.
How We Work
Client-Side Processing
All our tools are built using front-end technologies (HTML, CSS, JavaScript) that run entirely in your web browser. When you use our calculators or tools:
- Your data stays on your device
- Calculations happen locally in your browser
- No server communication for processing
- Tools work even without internet after page loads
Open Source Libraries
We use trusted, industry-standard libraries when needed:
- Chart.js for data visualization (mortgage calculators, etc.)
- Modern CSS for responsive design
- Vanilla JavaScript for performance
Our Commitment to You
- Calculation Privacy: Your calculations stay in your browser and are never sent to our servers
- No Paywalls: Every feature is available to everyone at no cost
- Transparent Analytics: We use Google Analytics (with IP anonymization) to improve our tools - you can opt out
- Ad-Supported: We display Google AdSense ads to keep services free - you control ad personalization
- No Data Sales: We never sell your personal information to third parties
- Your Control: Manage cookies, opt out of tracking, control ad preferences - your choice
- Regular Updates: We continuously improve our tools based on user needs
- Accessibility: We strive to make our tools accessible to everyone, including those with disabilities
How We Keep Services Free
Revenue Model
readytool is 100% free for users. We generate revenue through:
- Google AdSense: Non-intrusive display advertising that respects your experience
- Your Control: You can manage ad personalization in Google Ad Settings
- EU Compliance: European users see a consent dialog for cookie preferences (GDPR compliant)
What We Track
We use Google Analytics to understand how people use our tools (with IP anonymization enabled):
- Which tools are most popular
- What features to improve or add
- Technical issues to fix
- General location (country/city level, not exact address)
Important: Your calculation data (numbers, results, inputs) is never tracked or sent to servers. Only general usage patterns help us improve.
You can opt out using the Google Analytics Opt-out Add-on.
Our Values
Simplicity
We believe in clean, intuitive interfaces that anyone can use without instructions. No unnecessary complexity, just straightforward tools that work.
Privacy
Your privacy is not negotiable. We've designed our tools to naturally respect your privacy by processing everything locally and collecting nothing.
Accessibility
Everyone should have access to useful tools regardless of technical skills, location, or financial means. That's why everything is free and easy to use.
Quality
We're committed to providing accurate, reliable tools that you can trust. We test thoroughly and update regularly to maintain high standards.
Technology Stack
readytool is built using modern web technologies:
- HTML5: Semantic markup for accessibility
- CSS3: Custom properties for theming, mobile-first responsive design
- JavaScript (ES6+): Modern JavaScript for performance and maintainability
- Chart.js: Beautiful, responsive charts for data visualization
- Local Storage: For saving theme preferences only
Future Plans
We're constantly working to improve and expand our collection of tools. Upcoming features include:
- More financial calculators (investment, retirement, savings)
- Additional unit conversion categories
- Enhanced data visualization options
- More customization options for existing tools
- Improved accessibility features
Get in Touch
Have suggestions, feedback, or questions? We'd love to hear from you!
General Inquiries: contact@readytool.com
Privacy Matters: privacy@readytool.com
We read every message and appreciate your input in making our tools better.
Learn More:
- Privacy Policy - How we handle your data (GDPR & CCPA compliant)
- Terms & Conditions - Usage terms and disclaimers
Thank You!
Thank you for using readytool. We're honored to provide tools that make your life a little easier.