Online NIR Analyzer

The tool analyzes near-infrared spectral data to derive absorbance metrics and simple indices without requiring a lab-grade spectrometer. It accepts two aligned arrays: wavelengths in nm and reflectance (0–1 or 0–100) and outputs corrected absorbance spectra, peak candidates, and a data-quality score. It is designed for researchers, quality-control engineers, and material scientists who work with spectral data sets. Unique value lies in being calibration-free, with configurable baseline options and transparent, exportable results for downstream analysis. Conceptually, it treats R(λ) as the measured response, derives A(λ) = -log10(R(λ)/R0) using a user-defined or algorithmic R0, and derives indices by pairing wavelengths to emphasize specific bands, enabling quick cues about molecular features. Core features include optional SNIP or rubberband baseline correction, smoothing, derivative options, peak detection, and index computation. Use cases span material screening, pharmaceutical QC, and agricultural fiber analysis where fast spectral QA matters. Outputs include corrected absorbance spectra, peak wavelengths, and a quality score that reflects signal integrity and calibration risk. The tool is designed for non-lab environments, enabling rapid hypothesis testing and data exploration.