Billing and subscription management systems in 2026
13 commercial products, ranked by how many people read about each, or about its maker, on Wikipedia's mobile site. Of those with an article of their own, GoCardless has the most readers, about 406 a month. 20 open-source projects, ranked by GitHub stars and how recently each was worked on. Lago leads with 11k stars, ahead of Polar. 19 had code pushed in the last three months. Most common licenses: MIT (9), Apache-2.0 (4) and AGPL-3.0 (3).
Narrower
- Subscription billing libraries 9 RevenueCat, Cashier-stripe and Pay
Commercial billing and subscription management systems
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1
Stripe Billing Stripe, Inc.
Power your subscriptions with Stripe Billing. Set up recurring and usage-based pricing with APIs or within the Dashboard. Reduce churn with AI-powered tools.
Complete system Production-ready You already use Stripe Payments and want recurring billing set up through its API or dashboard with little extra work.
Commercial -
2
GoCardless GoCardless
Collect and send payments, minimise failures, and fight fraud. No more chasing payments and no expensive card fees.
Complete system Production-ready You collect regular invoices or subscriptions and want lower fees and fewer failures than cards.
406 readers a month Since 2011 Commercial -
3
Zuora Zuora
Zuora is the leading Quote to Cash and subscription management platform, unifying billing, payments, revenue, and AR to scale your modern monetization.
Complete system Production-ready A large company with complex subscription and usage contracts needs billing and ASC 606 revenue recognition at enterprise scale.
315 readers a month Since 2007 Commercial -
4
Zoho Billing Zoho Corporation
Complete system Production-ready A small subscription business wants cheap recurring billing and already uses Zoho accounting.
Commercial -
5
Recurly Recurly
Recurly powers subscription management and recurring billing for high-volume digital commerce. Launch, retain, and scale with a platform that handles billions in annual payments for leading brands.
Complete system Production-ready A high-volume consumer subscription business wants strong failed-payment recovery and gateway flexibility.
Commercial -
6
Chargebee Chargebee
Complete system Production-ready A subscription business has outgrown Stripe Billing's defaults and wants gateway choice, finance reporting and a no-code billing admin.
Commercial -
7
Maxio Maxio
Maxio is the all-in-one billing and financial reporting platform trusted by over 2,000 SaaS, AI, and subscription businesses. Drive revenue growth with simplified billing, revenue recognition and reporting.
Complete system Production-ready A B2B SaaS finance team wants billing and SaaS metrics like ARR and churn reporting in one place.
Commercial -
8
Paddle Paddle.com Market Ltd
Complete system Production-ready A software or SaaS seller wants to sell worldwide without registering for sales tax and VAT in every jurisdiction.
Commercial -
9
Lemon Squeezy Stripe, Inc.
Sell digital products and SaaS software the easy peasy way with Lemon Squeezy. As your merchant of record, we handle the tax compliance burden so you can focus on more revenue and less headache.
Complete system Usable An indie developer or small creator wants to sell software or downloads worldwide without dealing with sales tax.
Commercial -
10
Orb Orb
Design, execute, and operate revenue with usage-based billing. Orb helps modern software companies adapt pricing as products, usage, and costs evolve.
Complete system Production-ready A software or AI company charges by usage and needs to change pricing models often without rebuilding billing.
Commercial -
11
Metronome Metronome
Metronome is the usage-based billing platform that helps you launch products faster. Easily model your pricing today, iterate confidently tomorrow.
Complete system Production-ready A high-volume API or AI company sells usage commitments and credits and needs billing that handles enterprise contracts.
Commercial -
12
WHMCS WHMCS Limited
WHMCS is the #1 web hosting automation platform that automates billing, provisioning, support, and hosting management for providers worldwide.
Complete system Production-ready You run a hosting or domain reseller business and want to automate signups, invoices and server provisioning.
Commercial -
13
RevenueCat RevenueCat
The world’s best apps use RevenueCat to power in-app purchases, manage customer data, and grow revenue across iOS, Android, and the web.
Building block Production-ready A mobile app sells subscriptions and you do not want to build receipt validation and entitlement logic yourself.
Commercial
Open-source billing and subscription management systems
Complete systems you can adopt 2
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1
Polar polarsource
Polar — A billing platform for the intelligence era
Complete system Production-ready You sell software or digital products internationally and want tax handling and billing done for you.
★ 10k Apache-2.0 Python Active, pushed today -
2
Paymenter Paymenter
Free and open-source webshop solution for hostings
Complete system Usable You run a small game or web hosting business and want a free alternative to WHMCS.
★ 2.8k MIT PHP Active, pushed today
Building blocks for your own system 5
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1
Lago getlago
Open Source Metering and Usage Based Billing API ⭐️ Consumption tracking, Subscription management, Pricing iterations, Payment orchestration & Revenue analytics
Building block Production-ready A software or AI company bills on usage and wants an open-source alternative to Stripe Billing or Orb it can self-host.
★ 11k AGPL-3.0 Go Active, pushed 6 days ago -
2
Flexprice flexprice
Usage-based pricing and billing for developers 🔓 Cloud or self-hosted ⚙️ No-code UI 💰 Realtime usage metering 🎟 Credits & top-ups 🔑 Control feature access
Building block Usable An AI product sells credits or usage tiers and wants an open-source billing backend.
★ 6.9k AGPL-3.0 Go Active, pushed yesterday -
3
Killbill killbill
Open-Source Subscription Billing & Payments Platform
Building block Production-ready A company with Java engineers needs mature subscription billing it fully controls, at scale.
★ 5.8k Apache-2.0 Java Active, pushed 11 days ago -
4
OpenMeter openmeterio
Metering and Billing for AI, API and DevOps. Collect and aggregate millions of usage events in real-time and enable usage-based billing.
Building block Usable You run an API or AI product and need accurate metering, with billing optional.
★ 2.4k Apache-2.0 Go Active, pushed today -
5
Lotus uselotus
Open Source Pricing & Packaging Infrastructure
Building block Experimental A SaaS team wants to experiment with pricing models on a self-hosted engine.
★ 1.8k MIT Python Active, pushed 7 days ago
Integrations 3
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1
Cashier-stripe laravel
Laravel Cashier provides an expressive, fluent interface to Stripe's subscription billing services.
Integration Production-ready You are building a Laravel SaaS and charging through Stripe.
★ 2.5k MIT PHP Active, pushed 13 days ago -
2
Pay pay-rails
Payments for Ruby on Rails apps
Integration Production-ready You are building a Rails SaaS and want one billing API that can switch payment providers.
★ 2.3k MIT Ruby Active, pushed today -
3
Dj-stripe dj-stripe
dj-stripe automatically syncs your Stripe Data to your local database as pre-implemented Django Models allowing you to use the Django ORM, in your code, to work with the data making it easier and faster.
Integration Production-ready You run a Django app on Stripe and want to query billing data with the ORM.
★ 1.8k MIT Python Active, pushed today
Compared head to head
Looking for an alternative to
Open-source licenses
- Permissive: 13. Use it anywhere, including in closed products. You keep the copyright notice; Apache-2.0 also grants patent rights.
- Network copyleft: 3. Like GPL, and running a changed version as a web service counts as distributing it, so its users get the source too.
- Strong copyleft: 3. If you distribute the program or anything built on it, you must release the whole source under the same license.
- Weak copyleft: 1. Changes to the licensed files must be shared, but you can link them into a closed program.
Languages
PHP 7, Go 3, Python 3, Ruby 2, TypeScript 2, Java 1, Rust 1 and JavaScript 1.
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