Code Utilities

Minify, beautify, and highlight your code, and generate hashes or UUIDs. Our free developer tools help you format, transform, and optimize your code for better performance and readability.

API Key Generator
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Free online tool to generate secure API keys with customizable formats, prefixes, and environment suffixes. Create strong authentication tokens for your web applications and APIs.
Base64 Encoder/Decoder
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Free online tool to encode and decode text to/from Base64 format. Convert binary data, images, and text strings with this essential web development utility.
CSS Selector Tester
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Test CSS selectors against HTML elements with real-time matching and analysis
Code Beautifier
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Free online tool to format and beautify code (JavaScript, CSS, HTML, JSON) with proper indentation and syntax highlighting. Improve code readability and maintainability instantly.
Code Minifier
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Free online tool to compress JavaScript, CSS, and HTML code by removing whitespace, comments, and unnecessary characters. Optimize web performance and reduce file size for faster loading.
Code to Image Generator
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Convert code snippets into beautiful, shareable images with syntax highlighting.
Color Picker
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Convert between HSL, RGB, HEX color formats with palette generation.
Cron Job Syntax
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Understand and generate cron job expressions.
Hash Generator
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Generate MD5, SHA1, SHA256, SHA512 hashes with file and text input support.
HTTP Header Inspector
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Analyze HTTP response headers for security, performance, and compliance
HTML to Markdown Converter
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Convert HTML content to clean, readable markdown with conversion options
JWT Decoder
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Decode JWT tokens and display header/payload information with validation.
Kafka Events Tracing
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Visualize and trace Kafka event data changes with before/after comparison and timeline view.
Markdown to HTML Converter
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Convert markdown content to clean, semantic HTML with customizable templates
Markdown Live Preview
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Edit and preview markdown with real-time rendering and syntax highlighting
Regex Tester
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Free online tool to test regular expressions with real-time match highlighting and capture groups. Debug and validate regex patterns for JavaScript, Python, PHP, and other programming languages.
Secret Key Generator
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Generate cryptographically secure secret keys for JWT, API, session, and encryption purposes.
Syntax Highlighter
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Add syntax highlighting to code snippets for various languages.
UUID Generator
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Generate v4 UUIDs with batch generation and custom formatting options.
URL Encoder/Decoder
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Convert URL-unsafe characters to/from percent-encoded format.
URL Parser
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Break down URLs into components (protocol, domain, path, query params).