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AxisBenchTechniquesRaman spectrum analysis

RamanRaman spectroscopy

Raman spectrum analysis with open library matching.

Remove the background, measure bands and match against 36,062 Raman spectra from Open Specy, RRUFF and the Raman Open Database, with every setting saved beside the result.

Start free What it computes
Raman resultField names, not sample data
Band position
Raman shift, cm⁻¹
Band intensity
on the recorded signal basis
Excitation wavelength
nm, when converting
Region area
per declared region
Library candidate
name, source entry
Similarity score
cosine or Pearson

Each value is saved with the processing settings and library version that produced it.

Reference spectra
36,062 open Raman spectra
Sources
Open Specy, RRUFF, ROD
Files
CSV, TXT, TSV, Excel, JCAMP-DX
Price
Free plan, no credit card

01 · What it computes

From raw spectrum to ranked candidates.

Every transform is a named, parameterised step. Settings save as presets and run across a batch of spectra.

  • Raman shift

    Convert between wavelength and Raman shift with your excitation wavelength, or keep the axis as imported.

  • Background and smoothing

    AsLS, linear or rubberband baseline for the fluorescence background, with an optional baseline region. Savitzky–Golay, moving-average or Gaussian smoothing.

  • Normalisation

    Vector, max or SNV normalisation, recorded with the result so spectra compare on the same basis.

  • Band table

    Bands are detected by prominence, distance and a maximum count. Each row records the axis unit and the signal it was found on.

  • Band areas

    Integrate the regions you declare, one line each with low and high limits and a label, and see which bands fall inside each region.

  • Library matching

    Cosine or Pearson similarity across the full library, with a candidate count and minimum score. Templates for general Raman and polymorph screening.

02 · Reference library

The whole library, searched on every match.

Every reference is hosted on our servers and compared on every run, not a demo subset. The library is identical on Free, Pro, Lab and Enterprise.

Catalog published 28 September 2026 Free on every plan
Raman
36,062
Raman spectra
Open Specy, RRUFF, ROD

How a spectrum match is made

  1. Your processed spectrum goes in.

    Smoothing, baseline and normalisation come from the settings you chose, and they are saved with the match.

  2. The whole library is compared.

    Your spectrum is compared curve against curve with all 36,062 Raman references, then peak overlap is checked for the shortlist.

  3. Candidates come with their scores.

    Each candidate shows its similarity score and its spectrum beside yours. Candidates are evidence for your interpretation, not a verdict.

  4. Sources stay attached.

    Every record keeps its source and attribution in your export, and relevant papers retrieved from OpenAlex sit next to the result.

Where the reference spectra come from

SourceRecords in the catalogWhat it providesTermsCost
Open Specy Raman 20,922 Community spectral library from the Moore Institute for Plastic Pollution Research Mixed provenance, contributing organization kept on every record. Free download, no account Free
RRUFFUniversity of Arizona Raman 14,007 Measured Raman spectra of characterised, well-documented mineral samples Free with citation, Lafuente et al. 2015 Free
RODRaman Open Database Raman 1,133 Mineral Raman spectra as JCAMP-DX records CC0 Free

Record counts are from the catalog published on 28 September 2026. Each source keeps its own license, and attribution travels with every matched record and exported report.

03 · Files and limits

What goes in, and what it does not claim.

Supported files

  • CSV, TXT, TSV and ExcelColumns are mapped to the spectral axis and signal at import, and quality warnings show before anything is computed.
  • JCAMP-DXSingle-spectrum .jdx, .dx and .jcamp files with one ##XYDATA block. Multi-block, NTUPLES and peak-table JCAMP files are not supported.

Limits

  • Candidates, not verdictsA high similarity score is evidence for your interpretation, not an identification.
  • Shift conversion needs the laserConverting between wavelength and Raman shift requires the excitation wavelength.
  • JCAMP-DX scopeOne spectrum per file, as uncompressed ##XYDATA.
  • ExportsTables as CSV or XLSX, figures as PNG and reports as DOCX or PDF. The whole project downloads as a file you can reopen later.

Other techniques in the same project

DSC, TGA, DTA, FTIR, Raman and XRD data live side by side in one AxisBench project. Full multi-technique reports come with Pro.

Match your next Raman spectrum.

The Free plan includes every technique and the full reference libraries, with 10 analyses a month (up to 3 a day). Pro removes the limits.

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