EIS Analyzer - Professional Impedance Analysis

Analyze Electrochemical Impedance Spectroscopy data with automated circuit fitting, DRT analysis, and seamless Batalyse Collect integration. Free for Data Analysis customers.

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EIS Analyzer

Professional-grade analysis software for battery testing, fuel cells, electrolysis, and redox-flow batteries. Supports Gamry, Solartron, Bio-Logic, and more.
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Circuit Fitting
Fit EIS data to 14+ equivalent circuit models - from simple R-C to complex R-RQ-RQ-W with Warburg diffusion
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DRT Analysis
Distribution of Relaxation Times analysis identifies time constants and automatically recommends optimal circuit models
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Data Validation
Kramers-Kronig validation detects measurement errors, drift, or noise in your EIS data
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SOH Prediction
Machine learning-based State of Health and temperature estimation from EIS features
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Batch Processing
Multi-threaded parallel analysis for processing multiple files simultaneously
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Collect Integration
Direct connection to Batalyse Collect for seamless data import, analysis, and result upload

Multiple File Formats & Data Sources

Import EIS data from Gamry (.DTA), Solartron (.z), Bio-Logic (.mpr), or text formats (.txt, .dat, .csv, .mpt). Connect directly to MySQL/SQL Server databases or Batalyse Collect cloud platform.

Flexible Export Options

Export your analysis results in multiple formats: JSON for programmatic access, CSV for spreadsheet analysis, or PNG for publication-ready graphs. Save complete analysis sessions as projects to preserve all settings, fitted parameters, and results. Reopen projects anytime to continue your work or compare results across different measurements. Upload results directly to Batalyse Collect for centralized data management and team collaboration.

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One-Click Automated Analysis

Run DRT analysis, circuit fitting, validation, and predictions simultaneously with the auto-analysis pipeline. Export results as JSON, CSV, or PNG – or upload directly to Collect with KPI tables.

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Kramers-Kronig Validation

Verify the quality of your EIS measurements with Kramers-Kronig transformation. Detect drift, noise, or non-linear behavior in your data before analysis. The validation highlights problematic frequency ranges and helps ensure reliable circuit fitting results.

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Equivalent Circuit Modeling

Fit your EIS data to 14+ built-in equivalent circuit models including R, R-C, R-RC, R-RQ, R-RC-RC, R-RQ-RQ, Randles, and models with Warburg diffusion elements. Need a custom configuration? Enter your own circuit string to define individual equivalent circuits tailored to your specific electrochemical system.

Free for Data Analysis Customers

EIS Analyzer is included at no additional cost with your Data Analysis license.