Awesome Developer Tools 🛠️

A curated list of free online developer tools for testing, development, and productivity.

Testing Tools

Payment Testing

• Namso Gen - Credit card generator for testing payment systems. Generate valid card numbers for Visa, Mastercard, Amex, and more.

Mobile & Device Testing

• Random IMEI Generator - Generate valid IMEI numbers for mobile device testing with TAC database lookup.
• Random MAC Generator - Create valid MAC addresses for network testing and virtualization.

Financial Testing

• Random IBAN Generator - Generate valid IBAN numbers for 70+ countries with correct checksums.

Converters & Encoders

Encoding Tools

• Base64 Decode - Fast Base64 encoder/decoder with file and image support.
• Hex to ASCII Converter - Convert between hex, ASCII, decimal, and binary formats.

Hash Tools

• Hash Generator - Generate MD5, SHA-1, SHA-256, SHA-512, and other hashes for file verification.

Utilities

ID Generators

• UUID Generator - Generate RFC-compliant UUIDs (v1, v4, v7) for databases and distributed systems.

Development Helpers

• JSON Formatter - Pretty print, validate, and debug JSON data with syntax highlighting.
• Password Generator - Create cryptographically strong passwords with customizable options.
• Lorem Ipsum Generator - Generate placeholder text for mockups and prototypes.

Features

All tools feature:

• ✅ 100% Free to use
• ✅ No registration required
• ✅ Client-side processing (your data stays private)
• ✅ Mobile-friendly
• ✅ Fast and lightweight

Contributing

Have a suggestion? Feel free to open an issue or submit a pull request!

License

This list is published under CC0 (Public Domain).

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