You clearly mean/compare to IDE, and then for sure go with the flow, meaning VS Code, even for C++ (there even Visual Studio). I hadn’t heard of bloodshed/“Dev-C++ is a full-featured C and C++ Integrated Development Environment (IDE) for Windows platforms.”:
Supports Windows 98, NT, 2000, XP
but it seems clearly old. Unless you have a really old computer I wouldn’t worry about size of VS Code.
If you meant GUI (also), then there are many options, e.g. QML.jl people swear by, but I have a feel Mousetrap.jl might be better. Also some web-based GUI for Julia possible.
Vim + Copilot is the lightest platform in my side
Some AI like Copilot, or Cursor.AI, or OpenAI’s brand-new Canvas is very likely to help. Maybe more for beginners, and I’m, like others, betting on Canvas. It’s for paid users still, but they promise it for the free tier and I haven’t tried it yet, only AI without IDE support. You can also find such at JuliaHub. If you really want light, then Julia’s REPL is great (Python’s is also improved as of 3.13). You can have AI add-on in the REPL…