Web Development
23 tools to format, validate, and process data in your browser.
CSS Minifier
Stop using bloated CSS files! Minify and compress CSS instantly by removing whitespace, comments, and optimizing properties for 30-40% smaller file sizes. Improves page load speed, reduces bandwidth, and optimizes for production. Supports modern CSS including variables, Grid, Flexbox, and media queries. Free, works offline, unlimited minification.
HTML Minifier
Stop deploying bloated HTML files! Compress and optimize HTML code instantly by removing unnecessary whitespace, comments, empty elements, and redundant attributes for production deployment. Reduces file size by 20-40% for faster page loads. Free, works offline, unlimited minification.
JavaScript Minifier
Stop deploying uncompressed JavaScript! Minify and compress JavaScript code instantly by removing comments, whitespace, and optimizing syntax for production use. Reduces file size by 30-60% for faster page loads. Supports ES6+, async/await, and modern JavaScript. Free, works offline, unlimited minification.
CSS Selector Generator
Stop manually writing complex CSS selectors! Generate precise selectors for targeting HTML elements instantly with support for classes, IDs, attributes, pseudo-classes, and complex combinators. Includes specificity calculation and XPath conversion. Perfect for web scraping and styling. Free, works offline, unlimited generation.
CSS Grid Generator
Generate CSS Grid layouts with visual editor, responsive breakpoints, named areas, and custom positioning. Create complex grid systems with HTML and CSS code generation.
SVG Optimizer
Optimize and compress SVG files by removing unnecessary elements, attributes, and metadata. Advanced cleaning options to reduce file size while preserving visual quality.
SVG Editor
Edit, optimize, validate, and manipulate SVG files with comprehensive tools
HTML Visualizer
Interactive HTML, CSS, and JavaScript editor with live preview
API Request Builder
Build and generate API requests in multiple formats. Support for cURL, JavaScript Fetch, Axios, and Postman collections with authentication and custom headers.
API Response Formatter
Format, validate, and analyze API responses including JSON, XML, and raw HTTP responses with headers, status codes, and performance metrics.
API Documentation Generator
Stop writing API docs manually! Generate comprehensive API documentation from OpenAPI/Swagger specifications, Postman collections, or manual input instantly. Create beautiful, interactive documentation with code examples, schemas, authentication details, and testing capabilities. Free, works offline, unlimited generation.
Webhook Testing Tool
Webhook receiver and testing workspace for multiple scenarios, authentication, performance analysis, and security validation
HTTP Status Code Reference
Stop searching for HTTP status code meanings! Complete reference guide with detailed descriptions, usage examples, RFC references, and practical guidance for web developers and API designers. Covers all codes from 100 to 599 with real-world examples. Free, works offline, searchable.
User Agent Parser
Parse and analyze user agent strings to extract detailed information about browsers, operating systems, devices, and detect bots and crawlers.
Security Headers Analyzer
Comprehensive security headers analysis with compliance checking, recommendations, and scoring for web application security hardening
Meta Tag Preview - SEO & Social Media Optimizer
Preview and optimize your meta tags for search engines and social media platforms. See real-time previews of how your page appears on Google, Facebook, and Twitter.
.htaccess Generator
Build Apache .htaccess files with redirects, caching, HTTPS enforcement, and security headers. Export clean, production-ready directives.
HTTP Header Analyzer
Inspect HTTP response headers, spot missing security controls, and get performance & caching recommendations in seconds.
SEO Audit Tool
Run quick technical and content audits for any URL. Identify indexation issues, missing structured data, thin content, and performance risks in seconds.
UTM Builder & Parser
Build and parse UTM campaign tracking URLs. Create URLs with UTM parameters for marketing campaigns or parse existing URLs to extract UTM tracking data. Perfect for marketers tracking campaign performance in Google Analytics.
Robots.txt Generator
Interactive robots.txt builder to manage search engine crawl directives, block sensitive paths, and publish sitemap locations in seconds.
URL Parser & Analyzer
Parse and analyze URLs to extract all components including protocol, hostname, path, query parameters, fragments, with security analysis and validation features.
URL Shortener
Create custom short URLs with advanced features like analytics tracking, password protection, expiration dates, geographic restrictions, and QR code generation.
CSS Minifier
Stop using bloated CSS files! Minify and compress CSS instantly by removing whitespace, comments, and optimizing properties for 30-40% smaller file sizes. Improves page load speed, reduces bandwidth, and optimizes for production. Supports modern CSS including variables, Grid, Flexbox, and media queries. Free, works offline, unlimited minification.
HTML Minifier
Stop deploying bloated HTML files! Compress and optimize HTML code instantly by removing unnecessary whitespace, comments, empty elements, and redundant attributes for production deployment. Reduces file size by 20-40% for faster page loads. Free, works offline, unlimited minification.
JavaScript Minifier
Stop deploying uncompressed JavaScript! Minify and compress JavaScript code instantly by removing comments, whitespace, and optimizing syntax for production use. Reduces file size by 30-60% for faster page loads. Supports ES6+, async/await, and modern JavaScript. Free, works offline, unlimited minification.
CSS Selector Generator
Stop manually writing complex CSS selectors! Generate precise selectors for targeting HTML elements instantly with support for classes, IDs, attributes, pseudo-classes, and complex combinators. Includes specificity calculation and XPath conversion. Perfect for web scraping and styling. Free, works offline, unlimited generation.
CSS Grid Generator
Generate CSS Grid layouts with visual editor, responsive breakpoints, named areas, and custom positioning. Create complex grid systems with HTML and CSS code generation.
SVG Optimizer
Optimize and compress SVG files by removing unnecessary elements, attributes, and metadata. Advanced cleaning options to reduce file size while preserving visual quality.
SVG Editor
Edit, optimize, validate, and manipulate SVG files with comprehensive tools
HTML Visualizer
Interactive HTML, CSS, and JavaScript editor with live preview
API Request Builder
Build and generate API requests in multiple formats. Support for cURL, JavaScript Fetch, Axios, and Postman collections with authentication and custom headers.
API Response Formatter
Format, validate, and analyze API responses including JSON, XML, and raw HTTP responses with headers, status codes, and performance metrics.
API Documentation Generator
Stop writing API docs manually! Generate comprehensive API documentation from OpenAPI/Swagger specifications, Postman collections, or manual input instantly. Create beautiful, interactive documentation with code examples, schemas, authentication details, and testing capabilities. Free, works offline, unlimited generation.
Webhook Testing Tool
Webhook receiver and testing workspace for multiple scenarios, authentication, performance analysis, and security validation
HTTP Status Code Reference
Stop searching for HTTP status code meanings! Complete reference guide with detailed descriptions, usage examples, RFC references, and practical guidance for web developers and API designers. Covers all codes from 100 to 599 with real-world examples. Free, works offline, searchable.
User Agent Parser
Parse and analyze user agent strings to extract detailed information about browsers, operating systems, devices, and detect bots and crawlers.
Security Headers Analyzer
Comprehensive security headers analysis with compliance checking, recommendations, and scoring for web application security hardening
Meta Tag Preview - SEO & Social Media Optimizer
Preview and optimize your meta tags for search engines and social media platforms. See real-time previews of how your page appears on Google, Facebook, and Twitter.
.htaccess Generator
Build Apache .htaccess files with redirects, caching, HTTPS enforcement, and security headers. Export clean, production-ready directives.
HTTP Header Analyzer
Inspect HTTP response headers, spot missing security controls, and get performance & caching recommendations in seconds.
SEO Audit Tool
Run quick technical and content audits for any URL. Identify indexation issues, missing structured data, thin content, and performance risks in seconds.
UTM Builder & Parser
Build and parse UTM campaign tracking URLs. Create URLs with UTM parameters for marketing campaigns or parse existing URLs to extract UTM tracking data. Perfect for marketers tracking campaign performance in Google Analytics.
Robots.txt Generator
Interactive robots.txt builder to manage search engine crawl directives, block sensitive paths, and publish sitemap locations in seconds.
URL Parser & Analyzer
Parse and analyze URLs to extract all components including protocol, hostname, path, query parameters, fragments, with security analysis and validation features.
URL Shortener
Create custom short URLs with advanced features like analytics tracking, password protection, expiration dates, geographic restrictions, and QR code generation.
Related categories
› About web development
Tools for frontend and backend development Every tool runs client-side, so you can work with internal or sensitive content without upload workflows.
Common workflows include validation, quick conversion, and cleanup for API payloads, docs, spreadsheets, and operational data.