Billing & Automation Tools

An open-source automation platform for connecting apps and building workflows without code.

Actual is a local-first, open source personal finance tool that syncs across devices without a cloud dependency.

Open source membership management system for clubs and organizations with billing and contribution tracking.

Akaunting is an open source online accounting software for small businesses and freelancers.

An open source conference ticket reservation system for event organizers who want full control.

Open-source platform to programmatically author, schedule, and monitor workflows, commonly used for billing and data pipeline automation.

Open source workflow automation tool that connects apps and automates tasks without leaving your infrastructure.

Bigcapital is an open source accounting and billing automation platform for small and medium businesses.

Self-hosted payment gateway and billing automation platform for cryptocurrencies.

Open-source billing and client management platform for web hosting providers.

BTCPay Server is a self-hosted, open-source payment processor that lets you accept Bitcoin and other cryptocurrencies without third-party fees or intermediaries.

Self-hosted error tracking and monitoring tool that aggregates application exceptions and provides a debugging dashboard.

Open source bug tracking system used by thousands of organizations worldwide for defect and issue management.

Self-hosted open source scheduling platform that automates billing for appointments, subscriptions, and deposits.

Automates billing, invoicing, and payment collection for hosting providers with Stripe integration.

Open source tool that monitors web pages for changes and sends notifications when content updates.

Chargebee automates subscription billing, invoicing, revenue recognition, and dunning for SaaS and ecommerce businesses.

Chef automates infrastructure configuration and management using a Ruby-based DSL and pull/push models.