simulateurFreelance is a free, open-source tool built by a freelancer for freelancers in France. Compare SASU, EURL, micro-entreprise and portage salarial side by side: see your real net income after all taxes and social charges, optimize your salary/dividend split, estimate your future pension, and discover tax optimization levers — all in real time. No signup, no ads, 100% transparent calculations based on 2026 French tax law.