Coding Tools

Free online coding tools for converting, encoding, minifying, and formatting code. Base64, HTML, URL encoders, minifiers, and more.

All Coding Tools

Base64 Converter

Easily encode and decode text and files to Base64 format. Simple and fast online Base64 conversion tool.

HTML Encoder

Convert special characters to HTML entities and decode HTML entities back to characters. Free online HTML encoding tool.

URL Encoder

Encode and decode URLs and query parameters. Free online tool for URL-safe character conversion.

HTML Minifier

Compress HTML code by removing unnecessary characters, white spaces, and comments. Free online HTML optimizer.

CSS Minifier

Compress CSS stylesheets by removing unnecessary characters, white spaces, and comments. Free online CSS optimizer.

JS Minifier

Compress JavaScript code by removing unnecessary characters, white spaces, and comments. Free online JS optimizer.

HTML Formatter

Format and beautify HTML code with proper indentation and structure. Free online HTML prettifier.

CSS Formatter

Format and beautify CSS stylesheets with proper indentation and structure. Free online CSS prettifier.

JS Formatter

Format and beautify JavaScript code with proper indentation and structure. Free online JS prettifier.

Code to Image

Convert code snippets to beautiful, shareable images. Customize with various themes and programming languages.

URL Slug Generator

Generate clean, SEO-friendly URL slugs from titles or text. Create properly formatted web addresses.

MD5 Hash Generator

Generate MD5 hash from text or strings. Free online MD5 encryption tool for security testing.

SHA Hash Generator

Generate SHA-1, SHA-256, SHA-384, and SHA-512 hashes from text. Free online SHA encryption tool.

JWT Decoder

Decode and encode JSON Web Tokens (JWT). Inspect headers, payloads and signatures of JWT tokens.

JSON Tree Viewer

Visualize JSON data in a collapsible tree structure. Analyze and navigate complex JSON objects easily.

About Coding Tools

Essential development tools for programmers, web developers, software engineers, and technical professionals. Our comprehensive suite of coding tools helps you encode data, format code, minify assets, debug applications, and streamline development workflows with precision and efficiency. Whether you need to convert Base64 encodings, minify HTML/CSS/JavaScript for production, format code for readability, encode HTML entities for security, generate URL slugs, create hash checksums, or decode JWT tokens, our free online coding tools provide instant results without requiring command-line access or server-side processing. These powerful utilities support web development, API integration, security testing, code optimization, and debugging tasks across frontend, backend, and full-stack development workflows.

Key Features

  • Base64 encoding and decoding for binary data transmission and embedding
  • HTML entity encoding for XSS prevention and special character handling
  • URL encoding and decoding for query parameters and web address formatting
  • Code minification for HTML, CSS, and JavaScript to reduce file sizes
  • Code formatting and beautification for improved readability and consistency
  • MD5 and SHA hash generation for checksums and data integrity verification
  • JWT token decoding and encoding for authentication debugging and testing
  • JSON tree visualization for analyzing complex API responses and data structures
  • Code-to-image conversion for creating syntax-highlighted code screenshots
  • URL slug generation for SEO-friendly permalinks and web addresses
  • Source map support for debugging minified code in production
  • Multiple programming language syntax support across all formatting tools

Common Use Cases

  • Frontend developers minifying assets to improve website performance and load times
  • Backend engineers encoding authentication credentials for API headers and tokens
  • Full-stack developers debugging JWT authentication flows and token payloads
  • Security professionals testing XSS vulnerabilities and HTML injection attacks
  • DevOps engineers verifying file integrity using MD5 and SHA hash checksums
  • Content management system developers generating SEO-friendly URL slugs
  • API developers analyzing complex JSON responses and nested data structures
  • Technical writers creating syntax-highlighted code examples for documentation
  • Software teams enforcing consistent code style through formatting tools
  • Web performance engineers optimizing production builds with code minification
  • Open source contributors formatting code before submitting pull requests
  • Computer science students learning encoding methods and data transformation

All coding tools operate entirely in your browser with client-side processing, ensuring your code and sensitive data never leave your device. No registration required, no server uploads, and no code execution risks. Our development tools are trusted by thousands of programmers worldwide for daily coding tasks, debugging sessions, and production deployments. Access professional-grade development utilities from any device, anywhere, completely free with instant processing and complete privacy protection for your source code and credentials.