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Code Tools Toolkit

Code Tools

Format and minify JavaScript, CSS, HTML, SQL, XML, and YAML. Plus Markdown live preview and syntax-aware beautifiers.

#javascript#css#html#sql#xml#yaml#format#minify#markdown#beautify

What's included in Code Tools Toolkit

11 tools, all free and client-side — no login or data upload required.

JavaScript Formatter

Beautify and format messy or minified JavaScript code with configurable indentation and code style.

  • Beautify minified third-party JS for debugging
  • Normalize code style before code review
  • Format script snippets for documentation

JavaScript Minifier

Minify and compress JavaScript files by removing whitespace, comments, and shortening variable names.

  • Reduce JS bundle size for faster page loads
  • Minify inline scripts for HTML email templates
  • Compress scripts for CDN deployment

CSS Formatter

Expand and format compressed CSS stylesheets into readable, properly indented code for easy editing.

  • Unminify vendor CSS for debugging
  • Normalize stylesheet formatting across team members
  • Format generated CSS from preprocessors

CSS Minifier

Minify CSS by stripping whitespace, comments, and redundant rules to reduce stylesheet file size.

  • Reduce CSS file size for production deployment
  • Minify critical CSS for above-the-fold inlining
  • Compress stylesheets for email HTML templates

HTML Formatter

Indent and format HTML markup with proper nesting — great for cleaning up template or CMS-generated code.

  • Clean up HTML exported from design tools
  • Format email templates for readability
  • Normalize markup from CMS editors

HTML Minifier

Remove whitespace, comments, and optional tags from HTML to reduce page size and improve load time.

  • Minify HTML for faster initial page render
  • Compress HTML email templates
  • Reduce size of static site HTML output

SQL Formatter

Format raw or minified SQL queries with proper keyword capitalization, indentation, and clause spacing.

  • Prettify complex multi-join queries for review
  • Format SQL from ORM query logs
  • Prepare SQL snippets for documentation

SQL Minifier

Compact SQL queries by removing comments and excess whitespace — useful for embedding queries in code.

  • Inline SQL in application code as single-line strings
  • Compress migration scripts for embedding
  • Reduce query verbosity for logging

XML Formatter

Beautify XML documents with proper indentation and tag structure for readability and debugging.

  • Format SOAP request/response payloads for debugging
  • Prettify XML config files from legacy systems
  • Indent Maven or Ant build files

YAML Formatter

Validate and format YAML files with consistent indentation — catches syntax errors before deployment.

  • Validate Kubernetes manifests before applying
  • Format GitHub Actions workflow files
  • Debug CI/CD pipeline YAML configuration

Markdown Preview

Write Markdown in a live editor and see a rendered HTML preview update in real time.

  • Preview README files before pushing to GitHub
  • Draft and preview technical documentation
  • Write Markdown blog posts with live feedback