📐 Curve Fitting

Upload or paste X,Y data, choose a model, and get fitted parameters with uncertainties. Supports linear, polynomial, exponential, Gaussian, power-law, logarithmic and Arrhenius models.

Data

📄 Click or drop a CSV / TXT / XLSX file

or paste data

or load an example

Columns

X column

Y column

Model

Function

Polynomial degree

Initial guesses

Auto-estimated from data. Edit to improve convergence.

Results

Parameter	Value	Std Error

Upload or paste data to get started.

Show residuals subplot