About UtilzStack

UtilzStack is a collection of free, high-performance developer utilities built for security, privacy, and speed. We believe that developer tools shouldn't upload your sensitive credentials, payloads, and tokens to remote servers.

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100% Client-Side

Every calculation, formatting, decoding, and encoding process runs entirely in your local browser sandbox. No networks are queried, and no inputs ever leave your machine.

Zero Data Collection

We do not track, collect, or store your queries, input strings, or uploaded file data. Our tools are completely serverless, stateless, and safe for enterprise compliance policies.

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Blazing Fast Speed

Leveraging modern browser engine speeds, web crypto APIs, and optimal structures, operations complete instantly without waiting for server response overhead.

About the Creator

Hi, I'm Nithyakumar R, a Software Engineer and Team Lead with over 9 years of experience in product engineering, mobile application development, and emerging AI technologies.

I hold a Master of Computer Applications (MCA) degree and am currently pursuing a Master of Science (MS) in Artificial Intelligence & Machine Learning at Woolf University. Throughout my career, I have been involved in designing, developing, and delivering enterprise-grade mobile applications and digital products used by businesses and customers across various industries.

Currently, I work as a Team Lead, where I collaborate with cross-functional teams to build scalable, high-quality software solutions while mentoring developers and driving technical excellence. I am passionate about solving real-world problems through technology, with a recent focus on integrating Artificial Intelligence into practical applications, including recommendation systems, intelligent assistants, automation solutions, and data-driven decision-making platforms.

Areas of Expertise

  • 🤖 Artificial Intelligence & Machine Learning
  • 🧠 Generative AI & Large Language Models (LLMs)
  • 📱 Android Application Development (Kotlin & Java)
  • 🛠️ Product Engineering & Architecture
  • 📐 Software Architecture & System Design
  • 📊 Data-Driven Product Development
  • 👥 Agile Development & Team Leadership

Why This Website?

I created this website to share useful tools, technical knowledge, development resources, and insights from my journey in software engineering and Artificial Intelligence. My goal is to help developers, students, and technology professionals learn, build, and innovate more effectively.

Our Mission

To combine strong software engineering principles with modern Artificial Intelligence technologies to create innovative, scalable, and impactful digital solutions that improve user experiences and solve meaningful problems.

Connect with me: LinkedIn Profile ↗

Functional Tool Directory

Explore our main client-side tools designed to streamline your daily engineering workflows:

{ } JSON Formatter Format, minify, validate and repair JSON text structure. 🔑 JWT Decoder Verify, decode headers and claims signature configurations. 🔤 Base64 Tool Convert string inputs or binary uploads to base64. 🆔 UUID Generator Generate cryptographically secure bulk RFC 4122 IDs. .* Regex Tester Validate regular expressions in real-time with highlight. 🔒 Hash Generator Generate SHA-1, SHA-256, SHA-512 cryptographic checksums. 🕐 Unix Timestamp Convert epoch to human date formats bidirectionally.