SpectralBench

The Free OMNIC Alternative

Browser-based FTIR analysis — no Thermo license, no Windows dependency, no $10,000 price tag

Features

  • Works on any platform — Windows, Mac, Linux, iPad, Chromebook
  • Zero installation — open your browser and start analyzing
  • 50,000+ reference spectra from ROD, NIST, and curated open databases
  • AI-powered spectral interpretation with Claude
  • Reads OMNIC SPA and SPC files natively
  • Advanced baseline correction (ALS, polynomial, SNIP, rubberband)
  • Levenberg-Marquardt curve fitting with Gaussian, Lorentzian, and pseudo-Voigt models
  • PCA / chemometrics with interactive variance and score plots
  • Automated peak identification for FTIR, Raman, and UV-Vis
  • Export to CSV, JCAMP-DX, SPC, JSON, MATLAB, SVG, PNG, PDF
  • Shareable spectrum links and community reference library
  • 100% client-side processing — your data never leaves your computer

Supported Formats

Thermo SPA (.spa)Galactic SPC (.spc)JCAMP-DX (.dx, .jdx)Bruker OPUS (.0-.9)CSV / TSVExcel (.xlsx)Plain text (auto-detect)

Why Researchers Are Switching from OMNIC

Vendor lock-in. OMNIC is tied to Thermo Fisher instruments — if your lab has spectrometers from multiple vendors, you need separate software for each. SpectralBench is vendor-neutral and reads data from any manufacturer.

Cost. OMNIC licenses cost $3,000–$10,000+ as part of instrument bundles, with proprietary reference libraries adding $500–$2,000 each. SpectralBench is free with 50,000+ reference spectra included.

Windows-only. OMNIC requires Windows and the full Thermo instrument software stack. Researchers using Mac, Linux, or working remotely have no access. SpectralBench runs in any browser on any device.

No collaboration. OMNIC is file-based with no sharing capabilities. SpectralBench offers shareable spectrum links, a community reference library, and PDF report generation for publications.

Feature Comparison

FeatureOMNICSpectralBench
PlatformWindows only (with license server)Any browser (Mac, Linux, Windows, iPad)
Cost$3,000–10,000+ (instrument bundle)Free
LicenseTied to Thermo instrument purchaseNo license needed
InstallationRequires Thermo instrument software stackZero install — open browser
File FormatsSPA, SPC, JCAMPSPC, JCAMP, OPUS, CSV, Excel, JSON + auto-detect
Reference LibraryProprietary libraries ($500–2000 each)50,000+ open spectra included free
Peak IdentificationManual or with paid add-onsAutomated with confidence scores
AI InterpretationNoneClaude-powered spectral analysis
ExportLimited (SPA, image)CSV, JCAMP, SPC, JSON, MATLAB, SVG, PNG, PDF
CollaborationNone (file-based)Shareable links, community library
Cross-platformWindows onlyMac, Linux, Windows, iPad, Chromebook
Active DevelopmentLast major version 2019Regular updates

Getting Started in 30 Seconds

1

Open SpectralBench

No download, no installation, no license key. Just open your browser and go.

2

Drop Your SPA/SPC File

Drag your OMNIC SPA, SPC, JCAMP-DX, or CSV file onto the viewer. Format is auto-detected.

3

Analyze & Export

Identify peaks, correct baselines, run PCA, match references, and export in any format.

Supported File Formats

SpectralBench reads OMNIC's native SPA and SPC formats directly — no conversion needed. Simply export from OMNIC or drag your files straight into SpectralBench.

  • Thermo SPA (.spa)
  • Galactic SPC (.spc)
  • JCAMP-DX (.dx, .jdx)
  • Bruker OPUS (.0-.9)
  • CSV / TSV
  • Excel (.xlsx)
  • Plain Text (auto-detect)
  • JSON

Additional vendor-specific formats are on the roadmap. If you need a specific format, let us know.

Frequently Asked Questions

What is OMNIC software?

OMNIC is Thermo Fisher Scientific's proprietary FTIR analysis software, bundled with their spectrometers. It requires a paid license and only runs on Windows with the Thermo instrument software stack installed.

Is there a free version of OMNIC?

No. OMNIC requires a paid license through Thermo Fisher instrument purchase, typically costing $3,000–$10,000+ as part of an instrument bundle. SpectralBench is a completely free alternative with no license fees.

Can SpectralBench open OMNIC files?

Yes. SpectralBench reads SPA and SPC files (OMNIC's native formats) as well as JCAMP-DX and CSV exports from OMNIC. Simply drag and drop your files — format is auto-detected.

What can SpectralBench do that OMNIC can't?

SpectralBench offers browser-based access from any device, AI-powered spectral interpretation, 50,000+ free reference spectra, shareable links, PCA analysis, advanced curve fitting, and community collaboration — all without license fees or Windows dependency.

Does SpectralBench work with non-Thermo instruments?

Yes. SpectralBench is completely vendor-neutral and works with data from any FTIR instrument regardless of manufacturer — Bruker, Shimadzu, Agilent, PerkinElmer, Horiba, or any other brand.

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