Migrating from Fathom Lite to Umami

77 · Ariejan de Vroom · April 1, 2026, 8:36 p.m.
data migration Python analytics Fathom Lite
Summary
The blog post discusses the technical process of migrating 6 years of analytics data from Fathom Lite, which uses SQLite, to Umami v3, which utilizes PostgreSQL. It details the creation of a Python script to transform hourly aggregate data into individual event rows, making it a practical guide for developers involved in data migration.
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