JSON Merge Patch Builder
Build RFC 7396 JSON Merge Patches, preview results, and export. Diff two JSONs, apply patch, and validate deletes via null. Fast, private, and free in-browser.
RGB Color Generator
Generate RGB color codes instantly for web design. Perfect tool for designers and developers to create and preview colors for CSS and UI projects.
Focus Quest
Boost focus and beat distractions with Focus Quest. A smart productivity tool to build deep work habits, track goals, and improve concentration.
Pattern Completion Speed IQ Test – 10-Second Brain, Memory and Reflex Analyzer
Test your brain with a fast 10-second pattern IQ challenge. Measure memory, reflexes, and accuracy instantly. Free, quick, and highly engaging.
ADHD Focus Simulator – Distractions, Time Warp and Overload Test
Experience ADHD-style distractions, time warp and overload. A free online simulator to feel and measure real-world focus challenges.
Free Online Voice Confidence Meter – Test How Confident You Sound
Analyze your voice confidence online. Check volume stability, pitch, smoothness, and energy with a free voice confidence meter. No signup, no downloads.
Mouse Test Tool – Check Your Mouse Buttons, Scroll and Clicks in Real-Time
Test your mouse buttons, scroll wheel, and clicks online in real time. Fast, accurate and free mouse tester for all devices.