Polar

The billing stack for the intelligence era.

polar.sh
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Launched
—
Category
Payment Provider
Sub-Category
Merchant of Record
Pricing Model
Freemium
Starts From
5% + $0.50 per transaction
Platforms
Web
Founder
Birk Jernström

Target Audience

DevelopersIndie hackersSaaS foundersAI startupsStartup teamsOpen-source developersDigital product businesses

What is Polar

Polar is an open-source billing and Merchant of Record platform for developers, startups, and digital product businesses. It handles payments, subscriptions, usage-based billing, tax compliance, customer management, checkout, and automated product access.

Overview

Polar provides billing infrastructure for software businesses, with a focus on SaaS, AI products, and digital products. It acts as a Merchant of Record, handling international sales tax, payment processing, fraud, refunds, and chargebacks. Developers can sell one-time products or subscriptions, create fixed, pay-what-you-want, free, seat-based, or metered pricing, and integrate through hosted checkout, embedded checkout, APIs, SDKs, and framework adapters. Polar also provides automated benefits such as license keys, file downloads, GitHub repository access, and Discord access. Its platform is open source and supports usage metering, customer portals, webhooks, analytics, and subscription management.

Who should use it

  • You are building SaaS, AI, or another digital product and need billing infrastructure.
  • You want a Merchant of Record to handle international tax compliance.
  • You need usage-based, subscription, seat-based, credit-based, or one-time pricing.
  • You want an API-first payment and billing system designed for developers.
  • You want automated delivery of benefits such as license keys, files, GitHub access, or Discord access.
  • You prefer an open-source billing platform.

Key Features

  • Merchant of Record
  • Global tax compliance
  • One-time purchases
  • Subscription billing
  • Usage-based billing
  • Seat-based pricing
  • Credits and prepaid balances
  • Fixed pricing
  • Pay-what-you-want pricing
  • Free products
  • Hosted checkout
  • Embedded checkout
  • Checkout API
  • Customer portal
  • Automated benefits and entitlements
  • License key delivery
  • Secure digital file delivery
  • GitHub repository access
  • Discord access
  • Usage metering
  • Webhooks
  • Billing and customer analytics
  • Cost and gross-margin insights
  • Sandbox environment

Integrations Supported

Next.jsBetter AuthLaravelDenoNuxtRemixFastifyHonoTanStack StartElysiaAstroExpressSvelteKitJavaScriptTypeScriptPythonGoPHPZapier

Frequently Asked Questions

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