Markdown to HTML Converter
Convert Markdown to clean, semantic HTML instantly. Supports headings, emphasis, links, images, lists, blockquotes, and code blocks.
Build and sign JSON Web Tokens (JWT) with HS256, HS384, or HS512 right in your browser. Edit the header and payload, add standard claims, and copy the signed token.
Choose an algorithm, edit the header and payload JSON, and enter your secret. The token is signed locally with the Web Crypto API.
The signed token, colored by part: header, payload, and signature.
Convert Markdown to clean, semantic HTML instantly. Supports headings, emphasis, links, images, lists, blockquotes, and code blocks.
Convert numbers between decimal, binary, octal, and hexadecimal
Generate cross-platform React Native shadow styles for iOS and Android with live preview
Test and debug regular expressions online. Highlight matches, inspect capture groups, and validate patterns with live feedback.