Use-case online tools
Developer Converter Tools
Developer utilities for common encoding, decoding, generation, and inspection tasks.
url base64 jwt uuid converter9 tools
Useful For
Tools In This Set
URL Encoder DecoderEncode, decode, and inspect URL strings and query parameters.Base64 Encoder DecoderEncode plain text to Base64 or decode Base64 back to text.HTML Entity Encoder DecoderEncode HTML special characters into entities or decode entity strings back to text.JWT DecoderDecode JWT header and payload directly in your browser.Regex TesterTest regex patterns, flags, groups, and replacements directly in your browser.UUID GeneratorGenerate and copy UUID v4 values in your browser.Password GeneratorGenerate random passwords locally with length and character options.Data URI ConverterConvert text content into a data: URI for small inline assets and snippets.MIME Type LookupLook up common MIME types from filenames or file extensions.
FAQ
Can I paste tokens or passwords?
Use browser-local tools for sensitive values where possible, but avoid pasting production secrets.