SpectralBench

FTIR Peak Identifier

Automatic peak detection and functional group assignment

Features

  • Prominence-based peak detection with adjustable sensitivity
  • 80+ functional group database covering common FTIR bands
  • Confidence scoring (high / medium / low) for each assignment
  • Expandable peak table with interferent information
  • Interactive chart with labeled peak markers
  • Adjustable max peaks and prominence threshold

Supported Formats

JCAMP-DXSPCBruker OPUSCSVTXT

Identifying functional groups from an FTIR spectrum traditionally means cross-referencing peak positions against printed correlation charts or multi-page reference tables. It's time-consuming, error-prone, and especially difficult for beginners learning to interpret spectra.

SpectralBench automates the process: upload your FTIR data, and the peak identifier detects absorption bands, matches them against a curated database of over 80 functional group entries, and returns ranked assignments with confidence scores. You can tune the sensitivity, inspect alternative assignments, and click any peak to highlight it on the chart — all without leaving your browser.

100% client-side
No account required
No data uploaded