3 Open Source Alternatives to Lemon Squeezy

A list of 3 carefully selected open-source alternatives to Lemon Squeezy.

Adrian
Created by
Adrian
Mar 9, 2025Updated4 min read

The open-source alternatives are ranked based on our custom ranking system and score. This system takes into account various factors to determine the best alternatives.

If you’re looking for alternative features or workflows, here is a prepared detailed list of Lemon Squeezy open-source alternatives — each with its own distinctive strengths and key features.

#1
Crater logo

Crater

7,968
1,603

Crater is an open source invoicing solution designed for individuals and businesses seeking a robust, all-in-one financial management tool. It streamlines tasks such as invoicing, payments, lending, and accounting automation to help users manage cash flow and financial operations efficiently.

Crater screenshot

Key Features

  • Intuitive invoicing and billing workflows
  • Embedded general ledger for comprehensive financial tracking
  • AI-powered Financial Copilot for instant answers and report generation
  • Seamless payments integration with card and ACH support
  • Robust APIs and customizable SDKs for developers
  • Easy integration with QuickBooks, Xero, and other accounting tools

Crater consolidates invoicing workflows, bill payments, and working capital tools into a single platform. It features embedded general ledger functionality for holistic financial tracking, an AI-powered Financial Copilot for quick insights, and seamless integration with popular accounting software via robust APIs and SDKs, making it ideal for developers and businesses alike.

#2
Polar logo

Polar

4,670
234

Polar is an open source engine designed to help developers integrate payments and billing into their digital products. With an emphasis on simplicity and speed, it enables you to start selling SaaS and digital products in minutes.

Polar screenshot

Key Features

  • Setup in under a minute with six lines of code
  • Global Merchant of Record handles billing, taxes, and refunds
  • Automated benefits configuration (license keys, digital downloads, etc.)
  • Customizable checkout links and embedded checkout options
  • Developer-friendly CLI tools for quick bootstrapping
  • Zero fixed costs with a transparent fee structure

Polar streamlines payment processing and digital product management with just six lines of code. It offers reliable, secure, and fast integration along with a global Merchant of Record that handles billing, taxes, and transactions. Developers benefit from automated product benefits such as license keys and digital downloads, along with easy-to-implement checkout links and customer portals. Command line tools further simplify bootstrapping subscriptions, products, and checkouts in your projects.

#3
Lago logo

Lago

7,414
359

Lago is an open source metering and usage-based billing API designed for consumption tracking, subscription management, pricing iterations, payment orchestration, and revenue analytics. It delivers a robust solution for both large tech companies and small projects, enabling effortless handling of billing complexities.

Lago screenshot

Key Features

  • Open source billing and metering API
  • Usage-based pricing and consumption tracking
  • Flexible subscription and billing cycle management
  • Instant charge options with customizable invoicing
  • Seamless integration with customer portals and payment systems

Lago streamlines billing operations by offering powerful APIs that support usage-based pricing, flexible billing cycles, and instant charge management. With both a premium offering for teams needing control and an open source version for smaller projects, Lago integrates seamlessly into your workflow, allowing you to focus on building your product rather than worrying about billing intricacies.

Price comparison of Lemon Squeezy open-source alternatives

ToolTier 1Details
Polar logo
Polar
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Transaction Fee
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* Pricing shown is based on publicly available information and may not reflect current rates. Visit each tool's website for detailed pricing information and additional tiers.

About Lemon Squeezy

Lemon Squeezy is a brand on a mission to revolutionize the process of selling digital products. With a deep understanding of the challenges faced by creators and entrepreneurs in the global marketplace, Lemon Squeezy is here to make selling online easy-peasy for everyone. They offer a streamlined and accessible payments platform that aims to make global digital sales and payments accessible to all. By providing a fun and user-friendly experience, they empower their community to have a significant impact on the world. The Lemon Squeezy team is made up of experienced professionals in the SaaS and creator space, with a wealth of knowledge and expertise. They are dedicated to simplifying the process of selling digital products and are always available to help and support their customers. Whether you are just starting out or are an established business, Lemon Squeezy has you covered. Their top-notch customer support ensures that you have peace of mind throughout your journey, from initial setup to massive migration. Take your business to the next level with Lemon Squeezy and experience the convenience and efficiency of their digital products platform. Get started for free and join the Lemon Squeezy community today.
This comparison data was compiled with AI assistance.
Lemon Squeezy logo

Lemon Squeezy

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.

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