On this note I really recommend cyberchef[1]: a large collection of open-source web based utils and converters that can be chained together.
Oh and it's maintained by the GCHQ, the agency that cracked the german enigma codes.
Just be careful if you ever need to search for the URL again in the future. Last week a colleague of mine did and the first result on DDG linked to a very sketchy, ad-filled cyberchef instance. It seems like it already got removed again though.
There's a lot of CyberChef hosted domains that aren't hosted by GCHQ. It's open source, so they're doing nothing wrong, but we can't provide assurances about the code on those sites. The official URL is https://github.com/gchq/CyberChef.
if I am not doing dev work, and mostly working around web applications in the day (e.g. notion, linear, etc) - i don't want to go to open the terminal and switch focus to a different application
[1] https://gchq.github.io/CyberChef/