Well, and here it is. After building my Samurai Sudoku Solver, it was natural that at some point I also build a Standard Sudoku Solver. As the one for Samurai Sudokus, this one is also based on PuLP, and shares a good portion of code with the other solver.
This one is also very easy: put in the clues you have and press the "Solve" button. This solver is faster than the one for Samurai Sudokus, but still be patient: this site is hosted on a SbC, so that it might take up to 30 seconds to get a solution for your Sudoku.
DISCLAIMER: The solver is linked to an invisible "reCAPTCHA" check.