About Utility Tools
A free, private, and lightweight collection of online tools — built for everyday tasks, decisions, games, classrooms, and more.
What is Utility Tools?
Utility Tools is a web-based collection of free online utilities. Currently focused on randomizers — generate numbers, roll dice, shuffle lists, draw cards, flip coins, and spin wheels — with more tool categories planned.
Originally built as a native iOS app, this web version brings the same functionality to every device with a browser — no app install required.
Our Tools
How It Works
All randomization is performed in your browser using the Web Crypto API (crypto.getRandomValues), which provides cryptographically secure random numbers. This means results are truly unpredictable and unbiased.
The entire application is built with pure HTML, CSS, and JavaScript — no frameworks, no build tools, no server required. Pages load instantly and work offline once cached.
Privacy First
We take a simple approach to privacy: don't collect data in the first place.
- No cookies or tracking scripts
- No analytics (no Google Analytics, no Mixpanel, nothing)
- No server-side data storage
- No user accounts or login
- All preferences and history are stored in your browser's localStorage
Read our full Privacy Policy for details.
Technology
- Frontend: Pure HTML5, CSS3, and vanilla JavaScript
- Randomness: Web Crypto API with Math.random() fallback
- 3D Dice: CSS 3D transforms and animations
- Sound: Web Audio API (synthesized, no audio files)
- Storage: Browser localStorage for preferences and history
- Dependencies: None. Zero external libraries or frameworks.
iOS App
A native iOS app is available on the App Store. It features 3D dice powered by SceneKit physics, haptic feedback, and native performance. Search for "Random Tools" on the App Store to download.
Contact & Support
Have a question, found a bug, or want to suggest a feature? We'd love to hear from you.
support@randomtools.app