Research workbench
Dose-Response 4PL
Server-side 4PL dose-response fitting for IC50, EC50, Hill slope, R², RMSE, fitted values, and curve QC.
In-browser compute
Fitting runs in your browser on a Web Worker so the interface stays responsive. Dose and response values never leave your device and are not stored.
General 4PL fitting is open without sign-in; accounts are required only for automation, batch, or delegated workflows.
Fitting runs in your browser on a Web Worker so the interface stays responsive. Dose and response values never leave your device and are not stored.