Better FTIR answers, backed by evidence.
Search reference spectra, analyze unknowns, inspect ranked candidates and characteristic peaks, and bring spectral and literature evidence together in one practical FTIR platform.
Start with a spectrum. Search the library. Build a better-supported answer.
Upload an FTIR spectrum to search the reference library and inspect the evidence. For grouped studies, routine QC or formulation work, dedicated tools are available when you need them.
Spectrum Search & Analysis
Upload an unknown spectrum, retrieve relevant references, inspect ranked candidates and spectral agreement, and continue into evidence-supported interpretation.
Verify a Suspected Material
Start from a stated material hypothesis and check whether the available FTIR evidence supports it.
Verify a material
Review the evidence behind each result
Review candidate matches, characteristic peaks, supporting literature and any unresolved points alongside the conclusion.
My Analyses & Results
Choose the tool that fits what you have.
Start from a spectrum image, a known reference name, or a peak position.
Recover numerical spectrum data from a figure or image.
Crop the plot, calibrate its axes, trace the curve with automatic, color or manual methods, preview the spectrum and export CSV for further analysis.
Open Image → CSV
Find Spectrum
Find a reference record directly by spectrum number, CAS number, IUPAC name or product name.
Quick referenceIR Frequency Table
Look up characteristic regions, functional groups and peak pages while interpreting spectra.
CompatibilitySupported Formats
Check the instrument, interchange and numerical file types currently accepted for analysis.
When the job needs a dedicated analytical deliverable.
Use Online Requirement when you need a literature-backed peak assignment, a custom comparison, complex-sample analysis or another manual FTIR service.
Academic Peak Assignment, customized two-spectrum comparison, complex sample analysis and other IR support
Choose the service, upload the relevant evidence and describe the question to be answered. Academic Peak Assignment is the dedicated literature-backed peak-attribution service for known compositions.
Use a dedicated workspace when you are comparing more than one spectrum.
Research Batch handles grouped spectra and replicates, QC Consistency compares incoming materials with qualified references, and Formulation Analysis follows evidence across staged experiments.
Research Batch
Compare groups and replicates, inspect multivariate patterns and peak differences, and export numerical results.
Explore Research Batch
QC Consistency
Compare incoming materials against a qualified baseline with spectral, distance and peak-difference evidence.
Open QC Consistency
Formulation Analysis
Build evidence across staged experiments, review the next analytical step and refine component hypotheses over time.
Open Formulation AnalysisUse FTIR.fun from your instrument computer or another connected device.
Open FTIR.fun in a browser, use the FTIR Launcher on supported instrument computers, use the Gateway where general internet access is restricted, or connect your software through API and MCP.
The result comes first. The evidence stays available.
Reference retrieval is central to FTIR.fun. The result can also retain characteristic peaks, candidate comparisons, literature support, conflicts and recommended confirmation where they are useful.
Start with the spectrum you already have.
Upload a file, find a known reference, or recover numerical data from a spectrum image.