---
title: "opensigma"
description: "Free, open-source Stripe Sigma & Data Pipeline replacement on Cloudflare D1."
canonical: "https://choy.in/opensigma"
author: "Cho Yin Yong"
keywords: "stripe, sigma, sql, d1, analytics, open source"
---

# opensigma

> Free, open-source Stripe Sigma & Data Pipeline replacement on Cloudflare D1.

Read the full write-up at [https://choy.in/opensigma](https://choy.in/opensigma).