# Reflex

> Reflex is an open-source, full-stack Python framework and cloud platform that lets developers build and deploy production-grade web apps entirely in Python - no JavaScript required. Founded by ex-Apple and Ancestry engineers Nikhil Rao and Alek Petuskey, the company (originally Pynecone, a Y Combinator W23 startup) wraps React components in Python so data scientists, analysts, and engineers can ship UI, backend, and deployment from a single codebase. It has grown to over a million apps built, 25k+ GitHub stars, and adoption inside Fortune 500 companies.

- **Founded:** 2022
- **Headquarters:** San Francisco, California, United States
- **Founders:** Nikhil Rao (Co-founder & CEO), Alek Petuskey (Co-founder)
- **Team size:** ~51 employees (per LinkedIn/Apollo data)
- **Products:** Reflex Framework, Reflex Cloud, Reflex AI Builder (Reflex Build), Reflex Enterprise
- **Notable:** Over 1 million apps built on the platform, 25,000+ GitHub stars (crossed 20k in under two years), Raised $5M seed led by Lux Capital in 2023

## Products & services

- **Reflex Framework** — Open-source (Apache 2.0) full-stack Python framework that wraps React components in Python, available via pip install reflex, with built-in state management, styling, and routing.
- **Reflex Cloud** — Managed one-command deployment platform with SSL, CDN, autoscaling, and multi-region support.
- **Reflex AI Builder (Reflex Build)** — AI-powered app generation - describe an app in plain English and Reflex builds a full-stack Python app you can then own and edit.
- **Reflex Enterprise** — On-premises / VPC deployment, SSO, audit logs, and dedicated support for regulated and large organizations.

## Achievements

- Over 1 million apps built on the platform
- 25,000+ GitHub stars (crossed 20k in under two years)
- Raised $5M seed led by Lux Capital in 2023
- Graduated Y Combinator W23 batch
- Adopted inside roughly 30% of Fortune 500 companies for internal tools
- Used in production by 500+ teams with 10,000+ new apps built monthly

## Latest updates

- **2025-12** — Launched Reflex Build On-Prem, a secure AI app builder that runs entirely inside a company's own infrastructure.
- **2025** — Expanded Reflex AI Builder (Reflex Build) for natural-language full-stack app generation.
- **2024-11** — Passed 20,000 GitHub stars in under two years.
- **2023-08** — Announced $5M seed round led by Lux Capital.
- **2023-06** — Rebranded from Pynecone to Reflex to avoid confusion with the Pinecone vector database.

## Links

- Website: https://reflex.dev
- LinkedIn: https://www.linkedin.com/company/reflex-dev
- Twitter/X: https://twitter.com/getreflex
- GitHub: https://github.com/reflex-dev/reflex
- YouTube: https://www.youtube.com/@reflex-dev

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Profile page: https://yespress.io/reflex
Published by YesPress — https://yespress.io
Last updated: 2026-07-03