Reflex

Software built around the way your business works.

Reflex helps companies build the software that runs their business.

For decades, businesses have had to choose between generic SaaS that doesn’t fit how they work and expensive custom development that requires a large software team. AI has changed that equation.

Reflex is the complete platform for building, deploying, and managing custom software. It brings together AI-powered development, company data integrations, secure deployment, and governance on one standardized stack.

Your team can build and maintain software themselves, with Reflex providing the platform and support. Or our forward-deployed engineers can work alongside your team to identify and deliver high-value systems. Either way, every application is real, editable code that you control and can run in the cloud or fully on-premises.

The result is software designed around your business: tools, workflows, portals, dashboards, and AI systems that help you move faster, reduce costs, and adopt AI without building a large internal software organization.

Reflex is built on an open-source Python framework with nearly 30,000 GitHub stars and 400,000 monthly downloads, used by teams across 30% of the Fortune 500.

Alek PetuskeyNikhil Rao

Alek Petuskey & Nikhil Rao

Founders
Y Combinator
Abstract
Outset
Lux Capital
Box Group
Picus Capital

Reflex is backed by leading venture capital firms and angel investors including Qasar Younis (Applied Intuition), Jack Altman (Lattice), Paul Copplestone (Supabase), Matt Kraning (Palo Alto Networks), Alfredo Andere (Latch Bio), and others.

Our story

Built in the open, from the beginning.

Reflex began as a simple idea: building web apps in Python should feel effortless. What started as an internal experiment grew into a community-driven framework powering more than a million applications.

Open source is at the core of Reflex. We build in the open, listen to our community, and believe the best developer tools are shaped by the people who use them. Transparency, collaboration, and craft come first.

The Reflex team presenting at a developer conference

Built as one system

One Python codebase. The whole application lifecycle.

The open-source framework, AI Builder, and Reflex Cloud share the same runtime—so what you prototype is what you deploy. Teams keep control of their code, infrastructure, and data from the first prompt to production.

1M+

applications built with Reflex

25%

development time saved at Autodesk

28K

stars on GitHub

The people behind Reflex

Members of the Reflex team together at sunset

A small team, building alongside an open-source community.

We're Hiring

Help teams build software around their work

Our team includes open-source maintainers, top-ranked competitive programmers and IOI medalists, and early builders from leading developer-tool companies.

View open roles
Two Reflex teammates collaborating on laptops

Keep up with Reflex

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The platform to build and scale enterprise apps.

Describe your idea, and let AI transform it into a complete, production-ready Python web application.