Developer Tools

Interactive tools and visualizers built to help developers learn faster.

Start with DevUtil.dev for daily utilities, then explore the JS Event Loop Visualizer and the JSON Prettifier.

6

Tools live

3

Visualizers

Free

No paywall

⚡DevUtil.dev

A suite of fast, privacy-first developer utilities with multiple tools.

View →
UtilitiesMulti-toolPrivacy-first

🧠JS Event Loop Visualizer

Interactive walkthrough of call stack, Web APIs, microtasks, and task queue.

View →
JavaScriptVisualizerLearning

🟢Node.js Event Loop Visualizer

Explore Node.js phases and async behavior with step-by-step visualization.

View →
Node.jsEvent LoopAsyncVisualizer

📚DSA Visualizer

Visualize data structures and algorithms to learn core concepts faster.

View →
DSAVisualizerEducation

🧾JSON Prettifier

Instantly format, validate, and download clean JSON with copy-ready output.

View →
FormatterValidationExport

🔍Regex Tester

Test patterns with live highlights and match lists for quick debugging.

View →
RegexHighlightingPlayground