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Developer Tools

Essential developer utilities including regex tester, JSON/XML formatters, JWT decoder, UUID generator, hash calculator, and more.

Streamline your development workflow with our collection of essential developer tools. Test regular expressions, format and validate JSON/XML, decode JWT tokens, generate UUIDs, calculate hashes, parse URLs, format SQL queries, and more. These tools are designed for developers by developers, offering quick access to commonly needed utilities without leaving your browser. Perfect for debugging, testing, and everyday coding tasks.

All Developer Tools (11)

What Is My IP

Find your public IP address and location information. See your ISP, timezone, coordinates, and network details instantly.

Regex Tester

Test and debug regular expressions with real-time matching. Validate regex patterns with highlighting and explanations.

JWT Decoder

Decode and inspect JWT tokens. View header, payload, and signature of JSON Web Tokens for debugging.

Base64 / URL / HTML Entities

Encode and decode Base64, URL encoding, and HTML entities. All-in-one encoding tool for web development.

UUID Generator

Generate unique UUIDs (Universally Unique Identifiers) for databases, APIs, and applications. Support for v1 and v4.

Hash Calculator

Calculate MD5, SHA-1, SHA-256, SHA-512 hashes. Generate cryptographic hashes for security and data integrity.

SQL Formatter

Format and beautify SQL queries. Make SQL readable with proper indentation and syntax highlighting.

XML Formatter

Format, validate, and beautify XML documents. Minify XML and check for syntax errors.

Cron Expression Helper

Build and understand cron expressions for scheduling tasks. Visual cron job builder with human-readable descriptions.

QR Code Generator

Generate QR codes from text, URLs, or data. Customize size, colors, and error correction for scannable QR codes.

URL Parser

Parse and analyze URLs. Extract protocol, domain, path, query parameters, and fragments from any URL.

Frequently Asked Questions

Are developer tools secure for sensitive data?
Yes, all processing happens locally in your browser. Your code, tokens, and data never leave your device, making these tools safe even for sensitive information.
Do I need to install anything?
No installation needed! All developer tools run directly in your web browser. Just visit the tool and start using it immediately.
Which regex flavor do you support?
Our Regex Tester uses JavaScript regex flavor (ECMAScript), which is compatible with most modern programming languages with minor differences.
Can I use JWT decoder for production tokens?
Yes, the JWT decoder only decodes tokens locally without validation. However, never share production secrets. Use it for debugging and understanding token structure.
Do you save my code or data?
No, we do not save any code, data, or inputs you provide to our tools. Everything is processed locally and cleared when you close the page.

Start Using Developer Tools

All tools are free, work offline, and process data locally in your browser for complete privacy.

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