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🔧 Kill Bill

Kill Bill

Open-Source Subscription Billing & Payments Platform.

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Overview

Kill Bill is a comprehensive open-source billing and payments platform. It provides a flexible foundation for businesses to build their own billing systems, supporting subscriptions, usage-based models, and complex payment routing. Its plug-in architecture allows for extensive customization to meet unique business requirements.

✨ Key Features

  • Open-source and self-hostable
  • Subscription lifecycle management
  • Usage-based billing (metered billing)
  • Real-time payment processing with gateway abstraction
  • Extensible via a plug-in architecture
  • Invoice generation and dunning

🎯 Key Differentiators

  • Mature and feature-rich open-source platform
  • Highly extensible through a powerful plug-in architecture
  • Separation of billing logic from payment processing

Unique Value: Offers the ultimate flexibility and control for building a bespoke billing system through its mature, extensible, and open-source platform.

🎯 Use Cases (4)

Building a custom billing system with full control Companies with unique or complex billing logic Integrating billing into a broader OSS ecosystem Businesses requiring complex payment routing and gateway integrations

✅ Best For

  • Implementing custom subscription models
  • Creating a usage-based billing system for an internal platform
  • Building a multi-tenant billing service

💡 Check With Vendor

Verify these considerations match your specific requirements:

  • Companies without the engineering resources to deploy, manage, and customize an open-source platform.

🏆 Alternatives

Lago Stripe Billing Chargebee

Provides a more comprehensive and battle-tested open-source solution with a richer feature set and more extensive plugin capabilities compared to newer open-source alternatives.

💻 Platforms

API Self-Hosted

🔌 Integrations

Stripe Adyen Braintree PayPal Avalara Various payment gateways via plugins

🔒 Compliance & Security

✓ GDPR ✓ SSO ✓ PCI DSS compliant (requires proper deployment)

💰 Pricing

Contact for pricing
Free Tier Available

Free tier: Unlimited, self-hosted.

Visit Kill Bill Website →

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