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Format, minify, and validate your JSON data for better readability.
Compare and find differences between two JSON files with visual highlighting.
Convert nested JSON objects into a flat structure with dot notation for nested keys.
Convert JSON data to CSV format for spreadsheet applications and data analysis.
Convert JSON data to XML format for enterprise systems and document processing.
Convert JSON to YAML for configuration files and DevOps workflows.
Convert JSON data to Java classes with modern features like records and sealed classes.
Convert JSON into C# classes with support for records and nullable reference types.
Generate TypeScript interfaces from JSON data with support for modern TypeScript features.
Convert JSON data to SQL statements with table creation and data insertion support.
Convert JSON data to Markdown format with nested structure and type display support.
Convert Ethereum addresses to EIP-55 checksum format and validate address integrity.
Convert between ETH, Wei, Gwei, BTC, and Satoshi units with precise calculations.
Generate and validate BIP39 mnemonic seed phrases (12/24 words) and convert to seed.
Generate Ed25519 key pairs, sign messages, and verify digital signatures with high-performance elliptic curve cryptography.
Generate RSA public and private key pairs in PEM format with 2048/4096 bit key sizes.
Generate MD5, SHA-1, SHA-256, SHA-384, SHA-512 hashes from text with real-time computation.
Generate HMAC signatures using SHA-256, SHA-384, SHA-512 with a secret key.
Calculate CRC32, MD5, SHA-1, SHA-256, SHA-512 checksums for text and files with verification.
Encrypt and decrypt text using AES-GCM algorithm with PBKDF2 key derivation.
Generate and verify bcrypt password hashes with configurable rounds.
Generate time-based one-time passwords (TOTP). Compatible with Google Authenticator.
Generate QR codes for URLs, WiFi, VCard, Email, Phone and more with logo and color customization.
Generate random UUIDs with batch generation and format options.
Generate random numbers, patterns, and PIN codes with custom options.
Create strong, secure passwords with customizable options and strength indicators.
Convert text to Base64 format for safe data transmission and storage.
Convert Base64 encoded text back to its original format.
Encode URLs to make them safe for transmission and web use.
Decode URL-encoded text back to its original readable format.
Decode JSON Web Tokens to inspect header, payload, signature, and expiration time.
Escape and unescape HTML entities. Convert special characters to HTML entities and back.
Convert text into URL-friendly slugs with customizable separators and options.
Test and debug regular expressions with real-time matching, highlighting, and capture group extraction.
Write Markdown and see the rendered HTML preview in real-time with HTML source copy.
Convert numbers between Binary, Octal, Decimal, and Hexadecimal formats instantly.
Format and beautify SQL queries with keyword uppercasing, indentation, and proper line breaks.
Compress CSS by removing comments, whitespace, and unnecessary semicolons to reduce file size.
Compress HTML by removing comments, collapsing whitespace, and optimizing attributes.
Validate JSON data against JSON Schema Draft-07 with detailed error reporting.
Compare two code snippets with line-by-line diff, line numbers, and color-coded highlighting.
Convert between numeric and symbolic Unix file permissions with interactive checkboxes and presets.
Convert text between camelCase, PascalCase, snake_case, kebab-case, UPPER CASE, lower case, and more.
Compare two texts side by side and highlight additions, deletions, and changes.
Generate placeholder text with customizable paragraph and sentence count options.
Convert CSV data to JSON format for web applications and data processing.
Convert CSV data to XML format for enterprise systems and document processing.
Convert CSV to YAML for configuration files and DevOps workflows.
Convert CSV data to SQL statements for database import.
Convert CSV data to Markdown tables for documentation and README files.
Convert XML data to JSON format for web applications and data processing.
Convert XML data to CSV format for spreadsheet applications and data analysis.
Convert XML to YAML for configuration files and DevOps workflows.
Convert XML data to SQL statements for database import.
Convert XML data to Markdown format for documentation and readability.
Convert YAML data to JSON format for web applications and data processing.
Convert YAML data to CSV format for spreadsheet applications and data analysis.
Convert YAML to XML for enterprise systems and document processing.
Convert YAML data to SQL statements with table creation and data insertion support.
Convert YAML data to Markdown format for documentation and readability.
Convert Unix timestamps to human-readable dates and vice versa.
Convert colors between HEX, RGB, HSV, CMYK, and HSL formats with real-time preview.
Calculate and convert aspect ratios for images and videos. Resize dimensions while maintaining proportions.
Convert between PX, REM, and EM CSS units instantly with customizable base font size.
Calculate screen pixel density (DPI/PPI) from resolution and size. Device presets and print quality guide.
Convert images to Base64 encoded strings with drag & drop upload and Data URI output.
Decode Base64 strings back to images with real-time preview and PNG/JPEG download.
Optimize SVG code by removing metadata, comments, and empty groups. Compare size reduction.
Upload an image and click to extract pixel colors in HEX, RGB, and HSL formats.
Generate custom placeholder images with configurable dimensions, colors, and text.
Detect your current IP address, check IPv4/IPv6 format, IP class, and private/public status.
Calculate network address, broadcast, host range, and more from CIDR notation or subnet mask.
Parse and analyze HTTP headers with descriptions for 30+ known headers and request/response categorization.
Parse User Agent strings to detect browser, OS, device type, and rendering engine.
Evaluate JSONPath expressions against JSON data with support for root, child, array, recursive, and wildcard operators.
Build cron expressions visually with presets, human-readable descriptions, and next execution time previews.
Count characters, words, sentences, paragraphs, lines, and bytes with reading time estimates.
Complete reference of HTTP response status codes organized by category with search functionality.
Learn why strong passwords matter and how to generate secure passwords using entropy, length, and complexity. Includes practical tips and free tools.
Compare JSON and YAML formats with syntax examples, pros and cons, and use case recommendations for APIs, configs, and CI/CD pipelines.
Deep dive into cryptographic hash functions. Compare MD5 and SHA-256 in terms of security, speed, and real-world applications.
The developer toolkit that respects your privacy
BeautiCode is a comprehensive suite of free online tools built for developers, designers, and IT professionals. Our toolkit covers data format conversion (JSON, CSV, XML, YAML), code generation (Java, C#, TypeScript, SQL, Markdown), cryptographic utilities (Hash, AES, Bcrypt, HMAC), QR code generation, and much more.
Privacy is our core principle.Every tool runs entirely in your browser using JavaScript. Your data is never uploaded to any server, never stored in any database, and never shared with third parties. You can verify this yourself by monitoring the Network tab in your browser's developer tools during any conversion.
Always free, no barriers. No registration, no email required, no premium tiers, no usage limits. BeautiCode is sustained through non-intrusive advertising, allowing us to keep every tool free for every developer — from students to senior engineers.
Whether you need to format a JSON API response, generate a secure password, decode a JWT token, create a QR code for your business card, or convert colors for a design project — BeautiCode has you covered with a consistent, fast, and private experience.
All processing happens in your browser. Zero server uploads.
Results appear instantly as you type. No loading screens.
Use any tool immediately. No accounts or registration.