What Are Railway's Limitations? (The Ones That Actually Matter at Scale)
Railway's limitations become real problems at a specific inflection point: when your startup moves from "ship fast" to "stay up, stay compliant, and control costs." The platform is genuinely excellent at what it does — fast deploys, one-click databases, clean UI. But several of its architectural constraints are non-negotiable product decisions, not gaps that will be patched in the next release.
This isn't a takedown. It's the honest list of what breaks, and when, so you can make the right infrastructure decision before you're forced into an emergency migration.
The Limitations Nobody Talks About (Until They Hit Them)
1. No VPC Isolation
This is the one that surprises teams most. Railway runs all workloads on shared infrastructure. There is no VPC (Virtual Private Cloud) per customer, no network-level isolation between tenants, and no private networking that extends beyond your own Railway project.
For side projects and internal tools, this is fine. For a B2B SaaS with enterprise customers, a fintech product, a healthcare application, or anything heading toward SOC 2 or ISO 27001 certification, it's a blocker.
When your enterprise prospect's security team asks "are your workloads network-isolated?" the answer on Railway is no. That question will come up. It always does.
On AWS, every NoahOps environment gets its own VPC. Production, staging, and preview environments are isolated at the network layer, not just the application layer. This is table stakes for compliance-sensitive workloads.
2. No SSH Access to Running Containers
Railway doesn't give you SSH access to your containers. You can view logs. You can run one-off commands via Railway's CLI. But if you need to inspect a running process, attach to a container, debug a memory issue, or run a migration against a live database with precise control over what you're doing — you can't do it the way you'd do it on a server you control.
For most apps, this doesn't matter. For teams debugging hard-to-reproduce production issues, it matters a lot. "We can't see inside the box" is a real operational constraint, and it's one that gets more painful as your system complexity grows.
On AWS ECS, you get SSH access to your instances. You can exec into a running container. You own the infrastructure, so you can observe it at any level.
3. Egress Costs Can Surprise You
Railway charges $0.10 per GB of network egress. For most web apps, this is invisible. For applications that move significant data — video platforms, file storage, data pipelines, high-traffic APIs returning large payloads — it can dominate your bill in unexpected ways.
One well-documented case: a Railway user serving ~820GB of video content per month saw $41 of a $51.79 bill come from egress alone — roughly 79% of their total cost. They switched to Railway's object storage (which has free egress) for static assets, but the underlying pattern stands: if your application is data-heavy, model your egress costs before you commit to a pricing tier.
This isn't unique to Railway — cloud egress costs are a general problem. But Railway's per-GB rate is meaningful for scale-up workloads.
4. No Managed RDS-Equivalent
Railway offers one-click PostgreSQL, MySQL, Redis, and MongoDB. These are convenient and well-integrated. What they are not: fully managed, enterprise-grade database instances with the operational depth of AWS RDS.
RDS gives you: Multi-AZ failover, read replicas, automated backups with configurable retention windows, point-in-time recovery, encryption at rest and in transit, VPC-contained endpoints, IAM-based access control, and performance insights.
Railway's databases are good enough for most applications at early stage. But when you need a primary-replica setup for read scaling, when you need a failover SLA for production, or when your compliance audit asks for evidence of your backup and recovery procedures — Railway's database offering is a different product category than RDS.
5. No SOC 2 Certification (Yet)
As of 2026, Railway does not hold SOC 2 certification. For consumer applications, this is irrelevant. For B2B SaaS products selling to enterprise buyers, it's frequently a hard requirement.
Enterprise procurement teams run security questionnaires. One of the first questions is whether your cloud provider is SOC 2 certified. If the answer is no, some procurement processes stop there.
AWS infrastructure is SOC 2 certified, as is NoahOps (which deploys onto your own AWS account). If you're building toward enterprise sales, this constraint appears earlier than most founders expect.
6. Limited Region Support
Railway runs primarily on GCP infrastructure with limited region selection. If your users are primarily in India, Southeast Asia, or the Middle East and you need low-latency deployments close to them, Railway's region coverage may leave you in a suboptimal region with no alternative.
AWS supports 30+ regions globally. If your growth is in a geography that matters for latency — and for a lot of B2B and consumer products, it does — Railway's regional footprint is a constraint.
7. Unpredictable Costs Under Variable Traffic
Railway's usage-based pricing is transparent and generally fair. But for applications with highly variable traffic patterns — a product with viral growth moments, a B2B tool with heavy usage during business hours and near-zero overnight — the usage-based model can produce bills that are difficult to budget for.
You're not paying for reserved capacity, which means you're also not getting the cost predictability that comes with it. At significant scale, committing to reserved AWS instances is almost always cheaper than paying on-demand equivalent rates through a PaaS layer.
When Railway's Limitations Don't Matter
To be fair: for a lot of startup stages, none of the above matters.
If you're pre-product-market-fit, running an internal tool, or building a side project — Railway is excellent. The developer experience is genuinely the best in the PaaS category. One-click deploys, automatic Nixpacks builds, clean dashboard, preview environments that just work.
The limitations hit when you're past that stage:
- First enterprise customer asks for your security posture
- You need an on-call engineer to SSH into production at 2am
- Your compliance audit requires network isolation evidence
- Your egress costs start appearing as a line item worth noticing
- You need a primary-replica database setup
That transition happens at different times for different products, but it's predictable. You can plan for it.
What Moving to AWS Actually Looks Like
The reason most teams stay on Railway past the point where they should leave is that moving to AWS looks complicated. Terraform files. IAM policies. VPC configuration. ECS service definitions. It's a lot.
NoahOps exists to remove that complexity. You get:
- Your own AWS account — you own every resource, there's zero vendor lock-in
- VPC isolation per environment (production, staging, preview) — one-click provisioned
- CI/CD connected to your GitHub repo — push to deploy, auto-rollback on failure
- Managed RDS PostgreSQL and ElastiCache Redis — credentials auto-injected into your ECS environment
- SSH access to your instances
- Noah AI — describe what you want in plain English and it executes the deployment
The infrastructure runs in your AWS account. NoahOps is the layer that makes it as easy to operate as Railway, without the architectural constraints that come with a managed PaaS.
The Decision Framework
Here's a simple way to think about it:
Stay on Railway if:
- You're pre-PMF or in early growth
- Your users don't ask about your security posture
- Your application isn't data-egress-heavy
- You don't need SSH access to debug production
- Compliance certification is not on your roadmap
Move to AWS if:
- You have or are targeting enterprise customers
- You're handling sensitive data (financial, health, PII at scale)
- You need Multi-AZ database failover
- You need network-level isolation for compliance
- Your egress or compute costs have become a visible budget line
- You want to own your infrastructure with no lock-in
The migration is simpler than it looks. Most teams move in under a day.
FAQ
Does Railway support VPC peering?
No. Railway runs workloads on shared infrastructure. VPC peering and per-customer network isolation are not currently available. If you need network-level isolation, you need AWS infrastructure.
Can I SSH into my Railway containers?
No. Railway provides log access and CLI-based one-off command execution, but not SSH access to running containers. If you need container-level debugging access, you need infrastructure you control.
Is Railway SOC 2 certified?
As of 2026, Railway does not hold SOC 2 Type 2 certification. This is a requirement for many enterprise customer procurement processes. AWS infrastructure (and NoahOps, which runs on AWS) is SOC 2 certified.
How expensive does Railway get at scale?
Costs scale linearly with compute and egress usage. At moderate traffic levels ($20–100/mo range), Railway is competitive. As traffic scales significantly or your application generates high egress volume, the costs of reserved AWS instances typically become more favourable. Model your specific workload before committing.
How long does it take to migrate from Railway to AWS with NoahOps?
Most teams complete the migration in under a day. NoahOps handles VPC provisioning, ECS service configuration, database setup, and CI/CD integration. You point it at your existing repo and it handles the rest.
Request a free demo at noahops.com — see your app running on AWS-native infrastructure in 15 minutes, without writing a single line of infrastructure config.