- Regex101 - Create and test out regular expressions
- Replit - C# - Online IDE
- JSON Lint
- JSON Formatter & Validator
- JSON to C#
- XML Lint
- ASCII Table
- JWT Tools
- JWT Decode a token
- Base64 Encode & Decode
- Markdown Guide - Good MD syntax reference
- Dillinger - Online MD editor
- R Markdown Cookbook