SpectralBench
More features than eFTIR, completely free — no download, no Windows dependency, no $495 license
More features, zero cost. Essential FTIR charges $495 for basic FTIR analysis. SpectralBench is free and includes advanced capabilities eFTIR lacks: AI interpretation, PCA, Levenberg-Marquardt curve fitting, and a library of 54,825+ reference spectra.
Cross-platform access. Essential FTIR is Windows-only. If you use a Mac in the lab, Linux on your workstation, or a tablet at conferences, you cannot use eFTIR. SpectralBench runs in any modern browser on any device.
Massive reference library. Essential FTIR includes a small proprietary library. SpectralBench includes 54,825+ spectra from open databases (ROD, NIST, and curated sources) — over 100x more reference data for spectral matching.
Modern analysis tools. SpectralBench adds capabilities Essential FTIR never had: AI-powered interpretation that explains your peaks in plain language, PCA for multivariate analysis, shareable links for collaboration, and PDF report generation for publications.
| Feature | Essential FTIR | SpectralBench |
|---|---|---|
| Platform | Windows only | Any browser (Mac, Linux, Windows, iPad) |
| Cost | $495 one-time | Free |
| Installation | Windows installer | Zero install — open browser |
| File Formats | SPC, SPA, JCAMP, CSV | 30+ formats — SPA, SPC, OPUS, and 26 more |
| Reference Library | Small included library | 54,825+ spectra |
| Peak Identification | Basic | Automated with confidence scores + 3 technique databases |
| Baseline Correction | 1–2 methods | 4 methods (ALS, polynomial, SNIP, rubberband) |
| AI Interpretation | None | Claude-powered spectral analysis |
| PCA | None | Gram-matrix PCA with variance plots |
| Curve Fitting | Limited | Levenberg-Marquardt (Gaussian, Lorentzian, pseudo-Voigt) |
| Collaboration | None | Shareable links, community library |
| Cross-platform | Windows only | Any OS/device |
No download, no installation, no license key. Just open your browser and go.
Drop your SPC, JCAMP-DX, SPA, or CSV file onto the viewer. Format is auto-detected.
Identify peaks, correct baselines, run PCA, match references, and export in any format.
SpectralBench reads all the same formats as Essential FTIR — plus 30+ total formats from 16+ instrument vendors. Export from eFTIR in any format and open it directly in SpectralBench.
Essential FTIR (eFTIR) is a Windows-based FTIR analysis tool sold by eFTIR for $495. It provides basic spectral viewing, peak picking, and library matching for infrared spectroscopy.
Yes. SpectralBench provides more features than Essential FTIR at no cost — including AI interpretation, 54,825+ reference spectra, PCA, advanced curve fitting, and cross-platform browser access. No download or license needed.
Yes. SpectralBench reads SPC, SPA, JCAMP-DX, and CSV files — all formats that Essential FTIR can export. Simply export your data from eFTIR and drag it into SpectralBench.
SpectralBench offers AI-powered spectral interpretation, 54,825+ reference spectra (vs. Essential FTIR's small included library), PCA / chemometrics, advanced Levenberg-Marquardt curve fitting, cross-platform access from any browser, and shareable spectrum links.