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Logarithm documentation
A self-hosted audit log for SaaS apps: who changed what, and when. Field-level diffs in your own Postgres or SQLite, and a ready React view for your customers' admins.
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Guides
- Recording eventsActions, actors, targets, diffs and what to log.
- PostgresStore events in Postgres, Neon or Supabase.
- SQLiteStore events in SQLite with better-sqlite3, node:sqlite or Bun.
- Next.jsAn API route for the viewer with access control.
- React viewerShow the audit log to your customers' admins.
- Tenants and accessKeep each customer's log separate.
- PrivacyPersonal data in audit logs, GDPR and the Swiss FADP.