💻 Developer Tools

Essential tools for web developers and programmers. Format code, generate hashes, create QR codes, validate JSON, and streamline your development workflow with professional-grade utilities.

12 Tools

Pro Grade

Fast Processing

Free Always

Essential Developer Tools

Professional development utilities to boost productivity and streamline workflows.

📄

JSON Formatter

Format, beautify, and minify JSON data with syntax highlighting and error detection.

Syntax highlighting
Error detection
Minify & beautify
Tree view

Most Used Format JSON →

✅

JSON Validator

Validate JSON syntax and structure with detailed error reporting and suggestions.

Syntax validation
Error reporting
Schema validation
Fix suggestions

Essential Validate JSON →

📱

QR Code Generator

Generate QR codes for URLs, text, Wi-Fi, contact info, and more with customization options.

Multiple data types
Custom colors
Logo embedding
High resolution

Popular Generate QR →

🔐

Password Generator

Generate secure, cryptographically strong passwords with customizable criteria.

Cryptographically secure
Custom length
Character sets
Bulk generation

Security Generate Password →

🆔

UUID Generator

Generate UUID/GUID identifiers in various formats for databases and applications.

UUID v1, v4, v5
Bulk generation
Multiple formats
Copy to clipboard

Database Generate UUID →

🔗

MD5 Generator

Generate MD5 hashes for text, files, and data integrity verification.

Text & file hashing
Hex & Base64 output
Batch processing
Hash comparison

Crypto Generate Hash →

⚡

JavaScript Beautifier

Format, beautify, and minify JavaScript code with proper indentation and structure.

Code formatting
Syntax highlighting
Minification
Custom settings

JavaScript Format JS →

🎨

CSS Beautifier

Format and beautify CSS code for better readability and maintainability.

CSS formatting
Property sorting
Minification
Vendor prefixes

CSS Format CSS →

📝

HTML Beautifier

Format and beautify HTML code with proper indentation and tag structure.

HTML formatting
Tag validation
Minification
Custom settings

HTML Format HTML →

📊

JSON to CSV

Convert JSON data to CSV format for spreadsheet applications and data analysis.

Nested JSON support
Custom delimiters
Header mapping
Download CSV

Conversion Convert JSON →

🔄

CSV to JSON

Convert CSV data to JSON format for APIs and web applications.

Auto header detection
Custom separators
Type inference
Pretty formatting

Conversion Convert CSV →

🔍

QR Code Decoder

Decode and read QR codes from images to extract embedded data and information.

Image upload
Multiple formats
Batch decoding
Data extraction

Scanner Decode QR →

Development Best Practices

Essential tips and techniques to improve your development workflow and code quality.

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JSON Best Practices

Follow JSON formatting standards for better readability and API compatibility.

{ "name": "John Doe", "age": 30, "skills": ["JavaScript", "Python", "React"], "active": true }

🔐

Password Security

Generate strong passwords with mixed characters and adequate length for security.

• Minimum 12 characters • Mix uppercase, lowercase, numbers, symbols • Avoid dictionary words • Use unique passwords per service

🆔

UUID Usage Guidelines

Choose the right UUID version for your specific use case and requirements.

UUID v1: Timestamp-based (contains MAC address) UUID v4: Random (most common, cryptographically secure) UUID v5: Namespace-based (deterministic)

⚡

Code Formatting Standards

Maintain consistent code formatting for better readability and team collaboration.

• Use 2-4 spaces for indentation • Keep lines under 80-120 characters • Use meaningful variable names • Add comments for complex logic

📱

QR Code Optimization

Design QR codes for maximum scannability and user experience.

• Use high contrast colors • Maintain quiet zone around code • Test on various devices • Keep data concise for better scanning

🔗

Hash Function Selection

Choose appropriate hash functions based on security requirements and use cases.

MD5: File integrity (not cryptographically secure) SHA-256: Digital signatures, certificates bcrypt: Password hashing HMAC: Message authentication

Frequently Asked Questions

Common questions about development tools, code formatting, and best practices.

JSON formatting beautifies and structures the code for readability, while validation checks syntax correctness and identifies errors. Both are essential for working with JSON data effectively.

Yes, our password generator uses cryptographically secure random number generation (CSPRNG) to create passwords that are unpredictable and suitable for security-critical applications.

Use UUID v4 for most applications as it's random and doesn't leak information. Use UUID v1 only when you need timestamp ordering and don't mind exposing MAC address information.

QR codes are not encrypted by default and can be read by anyone. For sensitive data, encrypt the information before encoding or use QR codes only as references to secure systems.

No, MD5 is not secure for passwords due to collision vulnerabilities and speed. Use bcrypt, scrypt, or Argon2 for password hashing instead. MD5 is still acceptable for file integrity checks.

Yes, most tools process data client-side in your browser and work offline once loaded. This ensures privacy and security as your data never leaves your device.

While these are web-based tools, you can bookmark them for quick access. For CI/CD integration, consider using command-line equivalents of these tools in your build processes.

Most tools can handle files up to 10MB. For larger files, consider breaking them into smaller chunks or using specialized tools designed for big data processing.