JSON formatter, Base64 encoder, URL encoder, hash generators, password generator, UUID generator, and more. Free and instant.
Format, validate, and minify JSON data.
Encode text to Base64 or decode Base64 back to text.
Encode or decode URLs and query parameters.
Generate cryptographic hashes of any text.
Generate secure random passwords with customizable options.
Generate random UUIDs (Universally Unique Identifiers).
Beautify or minify HTML code.
Minify JavaScript code by removing whitespace and comments.
Decode JSON Web Tokens to view header and payload.
Test regular expressions against text and see matches highlighted.
Compare two texts and highlight the differences.
Write Markdown and see live HTML preview.
AllToolsHub provides essential developer tools for everyday coding tasks. Format and validate JSON, encode and decode Base64 and URLs, generate cryptographic hashes, create strong passwords, generate UUIDs, format HTML, minify JavaScript, decode JWTs, test regular expressions, compare text differences, and preview Markdown - all running entirely in your browser for maximum privacy and speed.