These products are placed in Payments & billing infrastructure alongside Defined Chase. The order reflects how much of Defined Chase’s category footprint each one covers. It is not a ranking, and no company can pay to appear here.
Open-Source Subscription Billing & Payments Platform. killbill is open source, written primarily in Java, released under Apache License 2.0. Its repository has 5.6K GitHub stars and 947 forks, and was last committed to within the last two weeks. Niched places it in Payments & billing infrastructure.
A self-hosted open source application for managing your invoices, clients and payments. InvoicePlane is open source, written primarily in PHP, released under Other. Its repository has 3.1K GitHub stars and 867 forks, and was last committed to within the last two weeks. Niched places it in Payments & billing infrastructure.
Open-source Pricing and Billing Infrastructure 🚀 Subscription management, Invoicing, Pricing, Usage-based billing, Cost limiting, Grandfathering, Experiments, Revenue analytics & Actionable insights. meteroid is open source, written primarily in Rust, released under GNU Affero General Public License v3.0. Its repository has 1.2K GitHub stars and 61 forks, and was last committed to within the last two weeks. Niched places it in Payments & billing infrastructure, Pricing, paywalls & upsells.
Simple subscription billing in the browser. recurly-js is open source, written primarily in JavaScript, released under MIT License. Its repository has 646 GitHub stars and 142 forks, and was last committed to within the last two weeks. Niched places it in Payments & billing infrastructure.
All AI developers deserve to get paid. Turn your AI prototype into a paid SaaS with open-source infrastructure for usage billing, payments, attribution, affiliates, anti-abuse, and deployment. velobase-harness is open source, written primarily in TypeScript, released under MIT License. Its repository has 585 GitHub stars and 70 forks, and was last committed to within the last two months. Niched places it in Payments & billing infrastructure.
An out-of-box Django REST framework solution for payment and subscription management using Stripe. drf-stripe-subscription is open source, written primarily in Python, released under MIT License. Its repository has 120 GitHub stars and 20 forks, and was last committed to about 11 months ago. Niched places it in Payments & billing infrastructure.
Category placement comes from the classifier and human review, not from a paid submission. A product missing from this page has either not entered the Niched research set or carries no category assignment yet. Absence is never evidence against it. Read the method or submit a missing product.