One of my oldest projects, toolstud.io is a collection of free web-based
calculators, converters and other tools.
- bandwidth converter: convert from GB/month to mbps to MB/hour, for estimations of throughput, to compare network and hardware speeds
- megapixel calculator: estimate image size for TIF, BMP, JPG, PNG … , also show aspect ratio
- HTTPS config check: see if your HTTPS security is correctly configured
- HTTP redirection check: see if your redirection (i.e. http -> https, www.example.com -> example.com) is correctly configured