Short answer: no, I don't
- It is very unlikely that there is any website that gives you such info on "any compound you type in", considering the number of known compounds. If you have specific interest, there is a much higher chance to find published data on it.
- Electron density itself is not much spectacular or informative when visualized. You may be more interested in orbitals (HOMO, LUMO etc), Fukui potential or other more informative properties.
- Such questions always beg for a "what accuracy do you need?". If you do not need anything fancy, you can perform such calculations on your own computer (using MOPAC, Firefly etc) and visualize it (using Jmol etc).