Free Web Development Tools
Build, Format & Optimize Locally.
A comprehensive suite of formatters, converters, and minifiers designed for modern web developers. All tools run 100% in your browser for absolute data security.
Code Formatters & Validators
Clean, format, and validate your source code safely within your browser.
JSON Formatter & Validator
Format, validate, and beautify JSON strings instantly. Detect syntax errors automatically.
SQL Formatter
Beautify and format messy SQL queries into readable, well-structured database commands.
CSS Minifier & Formatter
Compress CSS files to improve load times or beautify minified CSS code.
HTML Minifier
Minify HTML code by removing whitespace and comments to optimize page speed.
JS Minifier
Compress JavaScript files to reduce bundle size and improve website performance.
Generators & Architecture
Generate manifests, structured data, and advanced CSS layouts effortlessly.
Schema Generators Hub
Access all 13 dedicated Schema Generators (JSON-LD) for Products, Recipes, Videos, FAQs, and more.
Schema Markup Generator
Generate JSON-LD structured data to enhance your website's search engine rich snippets.
PWA Manifest Generator
Create a valid web app manifest.json file to make your website installable as a Progressive Web App.
CSS Flexbox & Grid Generator
Visually generate complex CSS Flexbox and Grid layouts and export the code.
Glassmorphism Generator
Create trendy frosted-glass CSS effects and box shadows for modern UI designs.
Mesh Gradient Generator
Generate beautiful, complex CSS mesh gradients to use as vivid backgrounds.
Border Radius Generator
Create organic shapes and complex border-radius properties visually.
Data Converters & Utilities
Convert data formats, decode tokens, and generate UUIDs or cron jobs securely.
JSON to CSV Converter
Convert complex JSON arrays and objects into flat CSV spreadsheet files.
XML/YAML to JSON
Convert between XML, YAML, and JSON formats without sending data to servers.
JWT Decoder
Decode JSON Web Tokens (JWT) to inspect their payload and header securely.
UUID / GUID Generator
Generate cryptographically secure random UUIDs (v4) in bulk.
Cron Expression Builder
Visually build and translate complex cron schedule expressions.
Developer Tools FAQs
Are these tools safe for sensitive data?
Yes. Our architecture ensures that tools like the JSON Formatter, JWT Decoder, and SQL Formatter operate 100% client-side. Your source code or database queries are never transmitted over the internet or saved to our servers.
What is a PWA Manifest Generator?
It allows you to configure and generate a `manifest.json` file which is required to turn your website into a Progressive Web App (PWA). It enables features like "Add to Homescreen" on mobile devices.
Do the CSS Minifiers break my code?
No, our minification engine uses AST parsing to safely remove whitespace and comments without affecting the functionality or logic of your code.