Best Subscription Billing tools by public signals

These picks are computed from scored public evidence. Use the openness column in the ranking to separate OSI-approved, source-available, open-core, proprietary, and unverified-license tools.

Use Case Rankings

Ordered by ToolVitals score, then health, shipping, confidence, GitHub stars, and name.

#ToolHealthShippingOpennessStarsScoreStatus
01Flexprice
Usage-based pricing and billing for developers ๐Ÿ”“ Cloud or self-hosted โš™๏ธ No-code UI ๐Ÿ’ฐ Realtime usage metering ๐ŸŽŸ Credits & top-ups ๐Ÿ”‘ Control feature access
9798OSI-approved OSS5.5k98Active
02OpenMeter
Metering and Billing for AI, API and DevOps. Collect and aggregate millions of usage events in real-time and enable usage-based billing.
9696OSI-approved OSS2.3k96Active
03FOSSBilling
Empower your hosting business with FOSSBilling, the free and open-source solution for efficient billing and client management.
9695OSI-approved OSS1.7k95Active
04Panelica
๐Ÿงพ Open-source WHMCS alternative โ€” self-hosted hosting billing & client portal. Laravel 13 + MySQL. Invoicing, domains, SSL, tickets, reseller, multi-language (30 locales), 15 themes. Free & MIT-licensed.
9296OSI-approved OSS5694Active
05Autumn
Autumn is an open-source pricing & billing platform
9289OSI-approved OSS2.7k91Active
06AI Billing
Billing layer for Vercel AI SDK applications.
9189OSI-approved OSS390Active
07Ubilling
Open-source billing system for ISP and network service management.
9090OSI-approved OSS18290Active
08BillRun
Open source billing and fraud detection system.
9186OSI-approved OSS13089Active
09Lago
Open Source Metering and Usage Based Billing API โญ๏ธ Consumption tracking, Subscription management, Pricing iterations, Payment orchestration & Revenue analytics
9086OSI-approved OSS10.5k88Active
10REMP
Open-source tools for publisher engagement and monetization.
9086OSI-approved OSS13788Active
11Kill Bill
Open-Source Subscription Billing & Payments Platform
8678OSI-approved OSS5.7k83Active
12KeyGate
Open source license management platform with subscriptions and usage metering.
8175OSI-approved OSS7079Active
13dj-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.
8172OSI-approved OSS1.8k78Active
14Meteroid
Open-source Pricing and Billing Infrastructure ๐Ÿš€ Subscription management, Invoicing, Pricing, Usage-based billing, Cost limiting, Grandfathering, Experiments, Revenue analytics & Actionable insights
8172OSI-approved OSS1.2k78Active
15Billmora
Open-source billing management with recurring automation and provisioning.
7877OSI-approved OSS1477Active
16Subkit
Laravel subscription management with a Filament UI. Eliminates days of custom billing setup using Stripe via Cashier.
7271OSI-approved OSS3671Warning
17PayKit
The billing framework for TypeScript. Code-first products, handles Stripe, webhooks, and usage state, runs in your app.
5734OSI-approved OSS1.1k48Warning
18Subscribie
Collect recurring payments online - subscription payments collection automation
5223OSI-approved OSS6340Warning
19NovaBilling
Open-source billing for SaaS with subscriptions, metering, invoices, and wallets.
4925OSI-approved OSS440Critical
20Lotus
Open Source Pricing & Packaging Infrastructure
4814OSI-approved OSS1.8k34Critical
21Ctrlpanel
Billing platform for hosting providers with Pterodactyl integration.
364OSI-approved OSS51123Critical
22Faveo Invoicing
Faveo Invoicing is an open-source platform for SaaS billing and license management, tailored to meet the needs of software companies.
363OSI-approved OSS24223Critical
23Usage Credits
Add usage-based credits to a Rails app.
262OSI-approved OSS16517Critical
24Unimeter
Usage metering engine for billing by customer consumption.
185OSI-approved OSS313Critical

Not Scored

Tracked for context, but excluded from rankings because comparable open/source-visible evidence is unavailable.

AgentPay AI

Lightweight pay-per-use GenAI agent platform that simulates token-based billing for AI tasks.

ToolVitals does not score proprietary or unknown-license tools because their public source evidence is not comparable to open/source-visible projects.

EasyBilling AI

AI-native billing, pricing, payments, and tax infrastructure for AI companies.

ToolVitals does not score proprietary or unknown-license tools because their public source evidence is not comparable to open/source-visible projects.

Hostinvo

SaaS web hosting billing platform.

ToolVitals does not score proprietary or unknown-license tools because their public source evidence is not comparable to open/source-visible projects.

MesaHub

Private SaaS backend for accounts, billing, and multi-tenant API key management.

ToolVitals does not score proprietary or unknown-license tools because their public source evidence is not comparable to open/source-visible projects.

Meterflow

Usage-based API billing platform.

ToolVitals does not score proprietary or unknown-license tools because their public source evidence is not comparable to open/source-visible projects.

Paid Memberships Pro

The Trusted Membership Platform That Grows with You: Restrict access to content and charge recurring subscriptions using Stripe, PayPal, and more. Fully open source. 100% GPL.

ToolVitals does not score proprietary or unknown-license tools because their public source evidence is not comparable to open/source-visible projects.

Railzway

Self-hosted billing engine for usage-based SaaS โ€” metering, subscriptions, invoicing

ToolVitals does not score proprietary or unknown-license tools because their public source evidence is not comparable to open/source-visible projects.

Recura

Subscription management platform for small businesses.

ToolVitals does not score proprietary or unknown-license tools because their public source evidence is not comparable to open/source-visible projects.

Revstack

Open source billing OS for modern SaaS.

ToolVitals does not score proprietary or unknown-license tools because their public source evidence is not comparable to open/source-visible projects.

TokenToll

๐Ÿพ TokenToll: is a self-hostable billing infrastructure for LLM APIs and SaaS products. Drop-in SDKs for Node.js and Python, YAML-defined pricing plans, Stripe adapter, and a real-time usage dashboard | The open-source alternative to Lago and Orb.

ToolVitals does not score proprietary or unknown-license tools because their public source evidence is not comparable to open/source-visible projects.