About MultiTools
MultiTools is a collection of free, privacy-first online tools designed for everyday tasks. From calculators and converters to generators and formatters, every tool runs entirely in your browser.
Our Mission
We believe online tools shouldn't require you to upload sensitive data to unknown servers. That's why every tool on MultiTools processes your data locally, using JavaScript in your browser. Nothing is ever sent to a server.
How It Works
- 100% Client-Side: All processing happens in your browser
- Zero Upload: Your files and data never leave your device
- No Tracking: No cookies, no analytics, no third-party scripts
- Always Free: All tools are free to use, forever
Categories
We offer tools across multiple categories including developer utilities, security tools, finance calculators, health trackers, text processors, and more. New tools are added regularly.
Support
MultiTools is supported by affiliate partnerships. Some pages contain clearly marked affiliate links. Using these links helps us keep the platform free while never compromising your privacy or the quality of our tools.