Javid
Senior Software Engineer & Founder
Javid is a senior software engineer and founder of SelfDevKit. He builds developer tools with a focus on privacy, offline capability, and native performance.
He also builds products like DroneBundle.com using SelfDevKit. Every tool in SelfDevKit started as something he needed himself.
Articles by Javid
JSON Minify: How to Compress JSON and Where It Actually Helps
Learn how to JSON minify for production, cut file sizes by up to 40%, and avoid the privacy risks of pasting sensitive data into online tools.
How to Unescape JSON: A Practical Guide for Developers
Learn how to unescape JSON strings in Python, JavaScript, and Go with code examples and debugging tips.
From Web to Native: Building iOS Apps with SelfDevKit Developer Tools
Learn how I use SelfDevKit to build native iOS applications like FeelClose, a long-distance couples app. From debugging Supabase APIs to decoding JWTs, see the developer tools that power mobile development.
Building Real-World Services with SelfDevKit: A Developer Case Study
Learn how I use SelfDevKit to build production services like Is It Visible, a mountain visibility forecasting platform. From JSON debugging to URL encoding, see the developer tools that power real projects.
Regex Tester Guide: Learn Regular Expressions with Practical Examples
Master regex with this comprehensive regex tester guide. Learn regex syntax, common patterns for validation, capture groups, and how to test expressions effectively with real-world examples.
Hash Generator Guide: MD5, SHA256, and Cryptographic Hashing Explained
Learn how hash generators work and when to use MD5, SHA256, SHA512, or BLAKE. Understand hashing for file integrity, password security, and API authentication with practical examples.
Base64 Encode and Decode: Complete Guide for Developers
Learn how to base64 encode and decode text and images. Understand data URIs, when to use Base64, and how to convert images to Base64 strings for HTML, CSS, and APIs.
Secure Password Generator: The Complete Guide to Creating Unbreakable Passwords
Learn how to generate truly secure passwords in 2025. Understand password entropy, strength analysis, and why offline generators are the only safe choice for your credentials.
JWT Decoder & Validator: The Complete Guide to JSON Web Tokens
Learn how to decode, validate, and debug JWT tokens securely. Understand JWT structure, algorithms, claims, and why offline decoders protect your authentication secrets.
JSON Formatter, Viewer & Validator: The Complete Guide for Developers
Learn how to format, view, validate, and debug JSON data efficiently. Discover the best JSON tools for developers and why offline formatters protect your sensitive API data.
Why Offline-First Developer Tools Matter More Than Ever
Discover why privacy-focused, offline developer tools are essential in 2025. Learn how local processing protects your API keys, JWT tokens, and sensitive data while delivering instant performance.
Getting Started with SelfDevKit: The Complete Guide to 50+ Offline Developer Tools
Master SelfDevKit from installation to advanced workflows. Learn how to use JSON tools, JWT decoder, ID generators, and 50+ developer utilities to boost your productivity while keeping your data completely private.