Firefly III

Firefly III is a free personal finance manager you run on your own server to track income and expenses. It is fully self-hosted and isolated, and it will not contact external servers until you explicitly tell it to, so your records stay off the cloud.

It uses double-entry bookkeeping and includes budgets, categories, tags, recurring transactions, rule-based transaction handling, piggy banks for savings goals, and income and expense reports. It supports any currency, two-factor authentication, and a REST JSON API.

Written in PHP and licensed under AGPL-3.0, it installs with Docker or on a self-managed server, with additional paths for Kubernetes, Cloudron, and YunoHost. A companion Data Importer handles bank and file imports.