Firefly III

Self-hosted personal finance manager to track budgets, expenses, and net worth.

Best for: Tech-savvy individuals, homelab enthusiasts, and privacy-focused budgeters tracking finances

Free plan

4.8/5Editorial score 92/100firefly-iii.org

Starts at

Free Forever (AGPLv3)

Get started free

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Editorial score92/100

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The editorial note

What to know about Firefly III

Firefly III is a free and open-source self-hosted personal finance manager that helps individuals take control of their financial life. Featuring double-entry bookkeeping, rule-based transaction automation, budget envelopes, and bank data import via Spectre/Nordigen, Firefly III keeps your financial data 100% private.

Is it right for you?

Who Firefly III suits

Choose it if

Tech-savvy individuals, homelab enthusiasts, and privacy-focused budgeters tracking finances

Look elsewhere if

Non-technical users looking for an automatic bank-syncing mobile app with zero self-hosting

What you get

Key features

Strict double-entry personal accounting
Budget envelopes and savings goal tracking
Automated transaction rules and recurring liabilities
Multi-currency support with real-time exchange rates
Comprehensive financial charts, net worth, and cashflow reports
REST API for integrations and custom mobile apps (Waterfly III)

Works with

Integrations5

DockerNordigen / GoCardlessPostgreSQLMySQLREST API

What it costs

Pricing

Firefly III pricing plans
Plan	Price	What it includes
Open Source	Free Forever (AGPLv3)Billed one-time	100% free open-source software via Docker, unlimited accounts, transactions, and budgets

Prices are recorded from the vendor's public pricing page and can change. Check before you buy.

The trade-off

Pros and cons

Pros

100% self-hosted on your own hardware with zero cloud leaks of sensitive financial data
Strict double-entry bookkeeping ensures mathematical financial balance and accuracy
Powerful automated rules engine categorizes and tags transactions on import

Cons

Requires hosting via Docker or a web server with PHP and MySQL/Postgres
Bank synchronization requires setting up the companion Data Importer tool

Quick read

At a glance

Category: Finance & Business Services
Pricing model: Free
Entry plan: Free Forever (AGPLv3)
Free plan: Available
Free trial: Not listed
Website: firefly-iii.org

The verdict

Our take on Firefly III

Firefly III is the undisputed king of self-hosted personal finance, offering complete privacy and institutional-grade financial bookkeeping.

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