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Simple Invoices

Open Source

Simple, open-source invoicing and accounting for small businesses.

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4.7 Editor Rating
Vetted Score
4.7 / 5.0

Scored 4.7/5 for its zero cost, open‑source flexibility, cross‑platform availability, and solid core invoicing features, despite a dated user interface.

Key Features
Invoice Creation

Generate professional invoices quickly with customizable templates and automatic tax calculations.

Client Management

Maintain a searchable database of customers, track contact details, and view invoice history.

Reporting & Analytics

Access financial reports, revenue summaries, and tax reports to monitor business performance.

Frequently Asked Questions

Yes, Simple Invoices is fully free and open source with no licensing fees.

It is a web‑based PHP application that can be installed on Windows, macOS, Linux, or accessed through any modern browser.

Yes, it includes basic multi‑currency support, allowing invoices to be created in different currencies and totals to be converted.