Yes — every CSV audit tool in Kando's free tool set, including the Paid Media Waste Finder, Creative Fatigue Detector, Ad Performance Auditor, Outreach CSV Auditor, CRM Hygiene Analyzer, Pipeline Leak Finder and Content Decay Detector, parses your file entirely client-side, in your browser. The file is never uploaded to a server, so raw ad account, CRM or Search Console data never leaves your machine.
That means you can safely audit exports containing real customer or account data without a data-sharing conversation — the analysis happens locally and only the results are yours to save.