Definition
Railway is a deployment platform that provisions infrastructure and runs applications in the cloud. Developers connect a code repository and the platform handles building, running, and networking; officially it is positioned as “The all-in-one intelligent cloud provider”. Product documentation lives at the official quick start.
How it works
Work is organized around projects: a repository can be connected for automatic builds, or a deployment can be started from a template or the official CLI. Applications run as services, with managed databases (PostgreSQL, MySQL, Redis, MongoDB) available alongside them; environment variables are stored per service and per environment, with support for multiple environments and rollbacks. The docs also publish comparison pages against Vercel, Heroku, Render, and other platforms.
Usage
Typical use is putting a web app, an API, and its database online together without self-managing servers — a common fit for individual developers and small teams. Templates and one-click deploys are also used to spin up demos or self-hosted services quickly.
Related and confusable terms
The word railway also means rail transport, so search results mix in unrelated topics. The platform is frequently compared with Vercel and Heroku; the official Compare to Vercel page describes the differences.
Episode discussion
In Weekly #007, in the chapter “从 Key 泄露聊到 AI 时代的安全边界” (Chinese transcript), Guizang describes Railway as a platform for one-click deploys and relays a claim that its database was fully exfiltrated, including stored environment variables and API keys; Xiangyang Qiaomu adds that “Railway is a particularly large PaaS platform”. The reported breach is not confirmed by any official channel and is treated here as the speakers’ account. See the chapter.
Frequently asked questions
How do I deploy an app on Railway?
Connect a repository to a Railway project and the platform builds and runs it; templates and the official CLI are alternatives. The full walkthrough is in the official quick start.
How does Railway differ from Vercel?
Both host applications with different positioning. Railway’s own Compare to Vercel documentation lays out the differences; compare it with each platform’s pricing page before deciding.