Simple Online Tools
For Everyone
Free, fast, and easy-to-use web tools for your everyday tasks. No sign-up required.
Why Choose NanoApps?
Built with modern technology to provide the best user experience
Lightning Fast
All tools work instantly in your browser. No waiting, no delays.
100% Private
Your data never leaves your device. Everything is processed locally.
Beautiful Design
Clean, modern interface that works perfectly on any device.
Free Online Tools for Everyone
NanoApps offers free, fast online tools that run in your browser. No account required—your data stays on your device. Use our image compressor to reduce file size for web or email. Our text case converter switches between uppercase, lowercase, title case, and sentence case in one click. The percentage calculator finds what X% of Y is, what percent X is of Y, or the percent change between two values. Create click-to-chat links with our WhatsApp link generator: enter a number (with country code) and optional message to get a wa.me link. The JSON to CSV converter turns JSON into CSV for spreadsheets. Check your BMI with our calculator. All tools work on mobile and desktop and process everything locally—nothing is sent to our servers.