Static-site tools for safer HTML, JSON, CSS, and DNS checks

Utilities HTML Encode Convert characters such as <, >, &, quotes, and apostrophes into HTML entities on the server. Utilities HTML Decode Convert HTML entities back into readable characters for debugging snippets, forms, and static page content. Utilities HTML Viewer View HTML source as escaped text and a sandboxed preview for quick checks before publishing static files. Utilities HTML to Markdown Convert common HTML structures into Markdown so documentation and agent prompts stay easier to edit. Utilities Markdown to HTML Render common Markdown patterns into escaped HTML that can be reviewed before it is used in a static page. Utilities JSON Beautifier Validate and pretty-print JSON so configuration snippets, MCP examples, and API payloads are easier to review. Utilities JSON to XML Convert valid JSON into XML with safe element names for data exchange and migration work. Utilities XML to JSON Parse XML on the server and return a JSON representation for inspection or migration. Utilities SSL Checker Inspect the live TLS certificate for a hostname and review issuer, validity dates, and remaining days. Utilities URL Parser Break a URL into scheme, host, path, query parameters, and fragment so redirects and static links are easier to debug. Formatters HTML Formatter Pretty-print HTML with server-side parsing so static page source is easier to scan before publishing. Formatters HTML Minifier Remove comments and unnecessary whitespace from HTML while keeping the document readable to browsers. Formatters HTML Validator Run a server-side HTML parse check and return actionable errors or warnings for static page documents. Formatters HTML Tester Check common production basics such as doctype, title, viewport, headings, canonical links, forms, and 404 guidance. Formatters CSS Minifier Remove comments and extra whitespace from CSS while preserving selectors and declarations. Formatters CSS Formatter Indent CSS rules and declarations for easier review before committing or publishing. Formatters JS Minifier Remove comments and unnecessary whitespace from JavaScript using a conservative server-side minifier. Formatters JS Formatter Apply lightweight indentation to JavaScript so small static-site scripts are easier to read. Formatters JSON Validator Check JSON syntax and return a clear error message when an API payload or MCP config is invalid. Formatters DNS Lookup Resolve public DNS records for a hostname and inspect A, AAAA, CNAME, MX, TXT, NS, SOA, and CAA results.