How to Deploy Your First App to Railway From GitHub in 2026

Railway deploys an app from a GitHub repo in about ten minutes: sign in with GitHub, click New Project, pick the repo, and Railway detects the language, builds it with Nixpacks, and gives you a public URL on *.up.railway.app. No Dockerfile needed for Node, Python, Go, or Ruby.

The pitch is Heroku without the sleep. Whether that holds up depends on your traffic shape, which is worth checking before you move a production app.

What Is Railway and How Does It Differ From Heroku?

Railway is a platform-as-a-service that builds from source and runs containers on shared or dedicated compute. You pay for CPU and memory per minute of actual use, plus a small per-service baseline.

Compared with Heroku, three differences matter. Railway has no sleeping dynos on paid plans, supports long-running workers without a separate add-on tier, and lets you provision Postgres, Redis, and MySQL as first-class services inside the same project rather than as add-ons billed separately.

How Do I Deploy a Repo to Railway Step by Step?

1. Sign in at railway.com with GitHub. The free trial credit is $5, once, and it expires after 30 days.
2. Click New Project → Deploy from GitHub repo. Grant repo access if it is your first time.
3. Pick the repo. Railway runs a Nixpacks build; watch the log pane, not the spinner.
4. Add environment variables under the service’s Variables tab. You can paste a .env block directly.
5. Click Generate Domain under Settings → Networking to get a public URL.

A Node app only needs npm start in package.json. If Railway cannot find a start command it picks node index.js, which fails silently on anything that expects dist/server.js.

Why Did My Build Fail?

Most Railway build failures come from three causes, in order of frequency.

Symptom	Cause	Fix
Cannot find module on start	Build ran but start path is wrong	Set a custom start command
Build succeeds, app crashes at boot	Missing env var	Copy .env into Variables tab
Port already in use or 502	App bound to hardcoded port	Listen on process.env.PORT

That third one gets everyone once. Railway injects PORT at runtime; an app hardcoded to 3000 will build fine and serve 502s forever.

How Much Does Railway Actually Cost?

There is no free tier for always-on apps. The trial gives $5 of credit, and after that the Hobby plan starts at $5 per month, which includes $5 of usage. Compute is billed at roughly $0.000463 per vCPU-minute and $0.000231 per GB-minute at the time of writing.

A small Node API with one worker and a Postgres instance typically lands between $5 and $12 a month. Compare that with a $7 Hetzner VPS that handles ten times the traffic — Railway is convenience, not cheap compute. It wins when you would otherwise pay an engineer to run servers.

How Do I Add a Database and Custom Domain?

Right-click the project canvas → Database → Add PostgreSQL. Railway injects DATABASE_URL into every service in the project automatically, so your app picks it up with no config change.

For a custom domain: Settings → Networking → Custom Domain, then add the CNAME Railway shows you at your DNS provider. TLS is issued automatically and renews itself. Propagation is usually under ten minutes with Cloudflare proxy off — leave the orange cloud on and you will fight SSL errors for an hour.

Is Railway Right for You?

Good fit: side projects, staging environments, internal tools, and small APIs where $10 a month beats an afternoon of server setup. Bad fit: anything that needs to run for free indefinitely, GPU workloads, or apps with hard compliance requirements around data residency — Railway’s regions are limited.

Quick Summary

• Railway builds from a GitHub repo in about 10 minutes with no Dockerfile.
• The $5 trial credit is one-time; always-on apps cost at least $5/month.
• Listen on process.env.PORT or you get 502s.
• Postgres and Redis are one-click services that inject connection strings automatically.
• It is a convenience purchase — a $7 VPS is far cheaper if you can manage it.