About Us
Welcome to Calculator & Converter - your trusted source for free, privacy-focused online tools.
Our Mission
We believe that everyone should have access to powerful calculation and conversion tools without compromising their privacy. That's why we've created a platform where all processing happens directly in your browser - no data is ever uploaded to our servers or stored anywhere.
What We Offer
- 22 professional calculators for finance, health, and everyday math
- 21 file converters for documents, images, and data formats
- 13 developer tools for JSON, JWT, Base64, code formatting and more
- 6 AI-powered SEO tools for meta titles, descriptions, FAQs, and keyword clustering
- 46 YouTube creator tools for titles, descriptions, tags, thumbnails, analytics, and earnings
- 100% browser-based processing for maximum privacy
- No registration required
- Completely free to use forever
Privacy First
Your privacy is our top priority. All tools work entirely in your browser using JavaScript. When you upload a file or enter data, it never leaves your device. We don't track your usage, store your data, or require any personal information.
Open Source Technology
Our platform is built with modern web technologies including Next.js, TypeScript, and Tailwind CSS. We leverage browser APIs to provide powerful functionality while maintaining your privacy.
Our Commitment
- ✓Always Free: All tools will remain free forever, with no hidden costs or premium tiers.
- ✓Privacy Focused: We will never compromise your privacy. All processing stays in your browser.
- ✓No Registration: You'll never need to create an account or provide personal information.
- ✓Continuous Improvement: We regularly add new tools and improve existing ones based on user feedback.
- ✓Accuracy: We use industry-standard formulas and regularly test our tools for accuracy.
Why Choose CalculatorNConvert?
🔒Privacy First
Unlike many online tools, we don't upload your files or data to our servers. Everything happens locally in your browser, ensuring your sensitive information stays private and secure.
⚡Lightning Fast
Browser-based processing means instant results. No waiting for uploads, downloads, or server processing. Get your results in milliseconds, not minutes.
✨Completely Free
No subscriptions, no trials, no credit cards required. All 108 tools are completely free to use as much as you want, forever. We believe powerful tools should be accessible to everyone.
🌐Works Everywhere
Our tools work on any device with a modern web browser - desktop, laptop, tablet, or smartphone. Windows, Mac, Linux, iOS, Android - we support them all.
Who We Serve
Our tools are designed for everyone, from students and professionals to content creators and developers:
- Students: Access calculators for math, science, and finance homework.
- Professionals: Use financial calculators for mortgages, loans, and investment planning.
- Developers: Format JSON, decode JWT tokens, encode Base64, and more.
- Content Creators: Generate YouTube titles, descriptions, tags, and optimize your content with AI-powered SEO tools.
- Small Businesses: Calculate loans, taxes, conversions, and create QR codes for marketing.
- Health Enthusiasts: Track BMI, body fat percentage, calories, and fitness goals.
Contact Us
Have questions or suggestions? Visit our contact page to get in touch.