Utilities
Everyday browser utilities that save time and eliminate friction. Generate scannable custom QR codes for websites and WiFi, produce cryptographically secure random passwords and UUIDs, and convert between metric and imperial units with pinpoint accuracy.
Clean & Simple
No intrusive ads, banners, or deceptive download buttons.
High-Res Exports
Download high-quality PNG QR codes and copied outputs instantly.
Universal Compatibility
Works seamlessly across mobile, tablet, and desktop browsers.
Available Utilities (3)
Select any tool to start using it instantly in your browser.
Utilities Guides & Tutorials
In-depth articles and guides related to utilities.
Celsius to Fahrenheit: The Exact Formula, Mental Math Shortcuts, and Absolute Zero
Convert temperatures between Celsius and Fahrenheit accurately. Learn the 9/5 formula, fast mental math estimation tricks, and key thermodynamic benchmarks.
UUIDv4 vs UUIDv7: Why Modern Databases Are Moving to Timestamp-Ordered Identifiers
Stop B-tree index fragmentation in PostgreSQL and MySQL. Discover why timestamp-ordered UUIDv7 outpaces random UUIDv4 for high-throughput database tables.
How WiFi QR Codes Work: The WIFI: Protocol Format, WPA3 Encryption, and Instant Guest Sharing
Connect devices to wireless networks without typing passwords. Discover the underlying WIFI: URI scheme, hidden SSID handling, and WPA3 security standards.
Password Entropy Explained: How to Calculate True Bit Strength and Brute-Force Resilience
Measure the true cryptographic strength of your passwords. Learn the Shannon entropy formula, why length beats character complexity, and NIST 800-63B standards.