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Build with AI. Ship with confidence.

The AI app builder with built-in testing and production Python code you own.

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trusted by 30% of fortune 500
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How it works

Describe, build, test, and ship it

From an idea to a tested, production-ready Python app in four steps.

Describe what you want

Describe what you want

Give a prompt, upload a PRD, or screenshot an existing app to recreate it.

Watch it come to life

Watch it come to life

AI builds your app in real-time with live preview. Agent researches the web, reads docs, figures out integrations.

Test before you ship

Test before you ship

The builder suggests tests automatically after each feature. You review, customize, or add your own.

Deploy anywhere

Deploy anywhere

One-click deploy to Reflex Cloud, your cloud, or on-prem.

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Testing

AI-assisted testing, built in

AI suggests tests automatically. You review, customize, or add your own.

The agent writes the tests

The agent writes the tests

AI builder suggests and writes the pytest, browser, or UI test for you. The agent doesn't ship code it can't verify.

Catch regressions before they ship

Catch regressions before they ship

Every build runs the complete suite. Historical pass rates indicate if the latest change caused any issues, ensuring you ship the prototype to production.

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Integrations

Connect to your systems

Your databases, your APIs, your internal libraries — not just pre-built SaaS integrations. Any Python package works.

Pre-built integrations, pre-vetted

Pre-built integrations, pre-vetted

The agent uses tested abstractions for every integration. Same implementation, every time — so what works on your laptop works in production, and what works for one teammate works for the next.

Or any Python package

Or any Python package

Pre-built isn't the limit — Reflex is Python, so the agent can use anything on PyPI or your private registry. Lovable and v0 can't say that.

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Collaboration

Bring your whole team in

Technical and non-technical, working on the same codebase.

One codebase, two editors

One codebase, two editors

Your engineer ships with Claude Code and MCP from a terminal. Your PM builds in the visual web builder. Same project, same branches, same test suite — nobody re-implements anything.

Roles built for real teams

Roles built for real teams

Admins set integrations and guardrails. Builders create within them. Viewer seats let stakeholders review and interact with apps — no deploy, no separate staging environment, no extra license.

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Code you can trust

Production code, not AI slop

Every app outputs clean, readable Python backed by git.

Every change, backed by git

Every change, backed by git

Every AI change, every human change — committed to a real git branch with a message and an author. Full history, branches, rollback to any version. Audit-ready out of the box.

Code your team would actually approve

Code your team would actually approve

Reflex apps output idiomatic Python with type hints, docstrings, and the patterns your senior devs would use. Built on the framework Amazon, NASA, and Dell ship on. Apache 2.0 — you own the code.

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—“Reflex definitely saved us from needing to hire a frontend engineer and sped us up by 4x relative to learning React.”

Misha van BeekMisha van BeekCo-founder, Bayesline
App Management

One click to production

One click to Reflex Cloud—SSL, CDN, and scaling included. Bring your own AWS, GCP, or Azure with our deployment scripts, or run on-prem. For enterprise, the AI builder itself runs on your infrastructure.

Deploy anywhere
Reflex
AWS
Azure
Databricks
Google Cloud
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Start now

Start building. Test it. Ship it

Ships apps that are actually tested, scalable, and all in Python code you can edit.

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Triangles Pattern
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The Platform to Build and Scale Enterprise AppsDescribe your idea, and let AI transform it into a complete, production-ready Python web application.
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