6 Best Open Source Billsby Alternatives
A curated collection of the 6 best open source and self-hosted alternatives to Billsby in 2026.
Looking for a free, privacy-friendly, or self-hosted replacement for Billsby in 2026? The top open-source alternative is Lago — Open-source billing infrastructure for AI and tech businesses.
Other highly rated open-source Billsby alternatives include Autumn, Paymenter and OpenMeter.
Open-source billing infrastructure for AI and tech businesses
Lago is the billing platform that gives teams full transparency, control, and flexibility to manage and scale any pricing model. Designed for AI-native and tech businesses, Lago provides real-time usage metering, hybrid pricing, and open-source or cloud deployment. - Usage Metering: Real-time metering for flexible pricing models. - Hybrid Pricing: Combine different pricing models (e.g., subscription, usage-based, hybrid). - Billing & Invoicing: Automate billing and invoicing without engineering bottlenecks. - Entitlements: Manage entitlements directly in billing for better control. - Cash Collection: Flexible cash collection for hybrid billing models. - Revenue Analytics: Trusted revenue analytics across every stream. - AI-Powered Billing Intelligence: Leverage AI for smarter billing decisions. - Embedded Billing: White-label billing for platforms and ecosystems. - Enterprise Integrations: Scalable integrations for complex billing needs. - Self-Hosted Deployment: Deploy Lago anywhere for full data control. Lago is open-source and can be self-hosted for full data control and compliance. It supports hybrid deployment models, allowing teams to start with cloud and transition to self-hosted as needed. The platform is built with scalability in mind, handling complex metering and billing for AI, IoT, fintech, and enterprise use cases.
Drop-in billing for AI startups
Autumn simplifies billing, ledgering, and entitlements for AI startups by moving pricing from code into configuration. This allows teams to change plans and sell custom contracts up to 10x faster, without rebuilding complex billing infrastructure. - Usage-Based Pricing: Track and bill customers based on actual usage with real-time synchronization. - Ledgering & Entitlements: Maintain accurate credit ledgers and enforce usage limits effortlessly. - Plan Management: Configure and modify pricing plans directly in the dashboard. - Webhook Support: Receive real-time updates on payments, usage, and subscription changes. - Custom Contracts: Sell tailored pricing plans to enterprise customers without engineering overhead. - Developer-Friendly: Integrate with a simple API and SDK for quick implementation. - Scalability: Built to handle millions of customers and transactions seamlessly. - Customer Stories: Trusted by top AI startups like Mintlify, Firecrawl, and T3 Chat. Autumn is a cloud-native SaaS platform with no self-hosting option. It is designed for ease of use, scalability, and reliability, making it ideal for AI startups that need to focus on product development rather than infrastructure management. - Tech Stack: Built with modern web technologies for high performance and reliability. - Hosting: Fully managed cloud infrastructure with enterprise-grade security and compliance. - Integration: Works seamlessly with existing payment gateways, databases, and third-party tools. - Pricing: Free tier available for startups, with scalable paid plans for growing businesses.
Open-source billing platform for hosting businesses
Paymenter is an open-source billing platform designed specifically for hosting businesses. It simplifies billing automation, eliminates vendor lock-ins, and provides seamless customization options. - Automated Billing: Streamline subscriptions, invoicing, and payment processing with built-in automation. - Extensible Integrations: Supports multiple hosting control panels (Pterodactyl, cPanel, Plesk, etc.) and payment gateways (Stripe, PayPal, Mollie). - Self-Hosted & Open Source: Fully transparent code with no hidden costs or vendor dependencies. - Multi-Currency & Multi-Language: Accept payments globally with automatic currency conversion and built-in translation support. - Migration Tools: Securely migrate data from WHMCS and other platforms with automated importers. - Community & Support: Active Discord community and GitHub repository for contributions and support. - API Access: REST API for custom integrations, automation, and workflow management. - Affiliate System: Built-in affiliate tracking and reward system to grow your business. Paymenter is a PHP-based application built on Laravel, designed for easy self-hosting. It supports deployment on various cloud providers or dedicated servers. The platform includes a marketplace for extensions, allowing users to customize functionality. Documentation and installation guides are available for self-hosted setups.
Open source usage-based billing and metering
OpenMeter is a developer-first platform for building usage-based billing and metering into your products. Whether you need real-time event tracking, flexible pricing models, or seamless integration with payment providers, OpenMeter provides the tools to scale your billing infrastructure efficiently. - Real-time Metering: Track usage at millisecond precision with low-latency enforcement for quotas and limits - Flexible Pricing Models: Support for plans, credits, usage-based pricing, and commitments with a dynamic product catalog - Entitlements & Access Control: Manage customer access and feature flags directly through the platform - Multi-language SDKs: Node.js, Python, Go, and more for easy integration - CRM & Payment Integrations: Connect with Stripe, tax providers, and other business tools - Usage Insights: Identify expansion opportunities and revenue growth signals for sales teams - Self-Service Portal: Empower customers to monitor their usage and manage subscriptions - Scalable Architecture: Built for high-volume event processing with battle-tested streaming techniques OpenMeter is available as both a self-hosted open-source solution and a managed service on Kong's platform. The open-source version can be deployed on Kubernetes or other container orchestration systems. Documentation and quickstart guides are available for self-hosting scenarios. Tech Stack: Go, Kubernetes, Kafka, PostgreSQL Deployment Options: - Self-hosted (Docker, Kubernetes) - Managed service via Kong Konnect - Cloud-native architecture for high availability
Open-source billing & monetization platform
Meteroid is the open-source billing and monetization platform designed for SaaS, infrastructure, and AI companies. It simplifies complex usage-based billing, empowering teams to monetize features quickly, send accurate invoices, and turn usage data into revenue opportunities. - Flexible Billing: Support for subscriptions, metering, and complex pricing models with no engineering overhead. - Usage-Based Billing: Turn raw usage data into billable metrics with precision. - CPQ (Configure, Price, Quote): Empower sales teams to close custom deals without spreadsheets or manual work. - Real-Time Insights & Reporting: Track revenue growth opportunities and streamline financial operations. - Modern API-First Architecture: Integrate seamlessly into your stack with zero friction. - Built with Rust: High-performance, reliable billing infrastructure. - Self-Hosted Option: Full control over data with no vendor lock-in. Meteroid is open-source and can be self-hosted for complete data control. It supports modern deployment workflows and integrates with existing infrastructure via a robust API. The platform is designed for scalability, performance, and ease of integration, making it ideal for teams prioritizing data sovereignty and customization.
All-in-one subscription billing platform
UniBee is a comprehensive subscription billing and recurring payments platform designed to simplify revenue operations for SaaS businesses. It unifies subscription management, real-time usage metering, and multiple payment gateways into a single solution. - Flexible Billing Models: Support for recurring, usage-based, tiered, and prepaid pricing structures. - Usage Metering: Real-time tracking and billing based on actual usage metrics. - SaaS Entitlements: Manage feature access and permissions for subscribers. - Multi-Gateway Payments: Integrate with popular payment providers like PayPal, Stripe, and more. - Global Compliance: Support for international tax regulations and multi-currency transactions. - Analytics & Reporting: Advanced dashboards for tracking revenue, churn, and customer behavior. - Developer-Friendly: RESTful API and comprehensive documentation for easy integration. - Scalable Infrastructure: Cloud-based solution that grows with your business needs. UniBee is a fully managed SaaS platform with no self-hosting option. It is built for scalability and reliability, handling all infrastructure requirements so businesses can focus on growth.
About Billsby
Billsby is a subscription billing and revenue management platform designed for SaaS and recurring revenue businesses. It simplifies complex billing workflows with automated invoicing, dunning management, and real-time revenue analytics.
Key Features of Billsby
- Automated Billing: Handles recurring payments, prorations, and renewals automatically
- Dunning Management: Reduces churn with smart retry logic and payment failure handling
- Revenue Analytics: Provides real-time insights into MRR, ARR, and customer lifetime value
- Multi-Currency Support: Processes payments in over 135 currencies with automatic tax calculation
- Self-Service Portal: Allows customers to manage their own subscriptions and payment methods
- Integrations: Connects with Stripe, PayPal, and other payment processors
- Compliance: Ensures PCI DSS compliance and supports GDPR requirements
Tech / Self-Hosting
Billsby is a fully managed SaaS platform with no self-hosting options available. The service runs on Azure infrastructure and handles all technical aspects including security, scaling, and maintenance.