InvoicePlane

An OS for your personal finances built by a small team alongside an incredible community.

Firefly III is a modern financial manager. It helps you to keep track of your money and make budget forecasts. It supports credit cards, has an advanced rule engine and can import data from many banks.

Local-first personal finance tool based on zero-sum budgeting, supporting synchronization across devices, custom rules, manual transaction importing (from QIF, OFX, and QFX files), and optional automatic synchronization with many banks.

Payment switch to make payments fast, reliable and affordable. Connect with multiple payment processors and route traffic effortlessly, all with a single API integration.

Powerful tool to invoice clients online.

Accounting software designed for small businesses and freelancers.

Open-source metering and usage-based billing.

Bitcoin and other cryptocurrencies payment processor.

Wealth management software to keep track of stocks, ETFs and cryptocurrencies.

Open-Source Subscription Billing & Payments Platform. Have access to real-time analytics and financial reports.

Lightweight personal subscription tracker with statistics and optional notifications.

Open-source cryptocurrency trading bot.