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Web app

Runs in the browser, no Python required: drop in two datasets, get the same five-category report, review a color-coded crosswalk, download the mapping. Runs this exact package in-browser via Pyodide; files never leave your device.

Use it full-size at https://cstirry.github.io/field-match/, or right here:

  • First load fetches the Python runtime from a CDN: about 20 seconds, cached afterwards.
  • Supported inputs: CSV, TSV, Excel, Parquet, JSON, Stata, SAS, fixed-width. SPSS and R not supported in-browser (no WebAssembly build for their readers); use the Python package for those.
  • Everything processed locally in the browser tab. Reload the page to clear all data.