- Draw.IO - A great online flow chart tool
- ip subnet calculator - A fantastic tool for working out subnets etc.
- RegexBuddy - Regular Expressions Helper - Does exactly what it says on the tin
- Regex101 - Another really great Regular Expression Tool
- RegexStorm.net - Another Regex Helper
- A Favicon Generator tool from !&1 IONOS: https://www.ionos.co.uk/tools/favicon-generator
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