If you’re looking for a quick, charming way to brainstorm or sketch out concepts, especially in a low-fidelity format, Excalidraw is the better choice. Its open-source nature and ability to work offline make it a solid tool for developers sketching architecture or people needing a simple visual tool without the pressure of polish. However, avoid it if you're looking for high-quality visuals, as its intentionally rough aesthetic won’t suit polished projects.
On the other hand, if your goal is to bring a marketing site or portfolio to life without diving into code, Framer is the right pick. Its freemium model allows you to design and publish interactively, making it ideal for designers and founders wanting engaging web experiences. However, this comes with trade-offs in flexibility for complex applications, so if you need custom code or deep functionality, look elsewhere.