---
title: "Deploy PgAdmin 4 | Open Source PostgreSQL GUI on Railway"
description: "Self Host PgAdmin. Web UI,  SQL editor, ERD, Backup, Monitoring"
category: "Storage"
url: https://railway.com/deploy/pgadmin4
---

# Deploy PgAdmin 4 | Open Source PostgreSQL GUI on Railway

Self Host PgAdmin. Web UI,  SQL editor, ERD, Backup, Monitoring

**[Deploy PgAdmin 4 | Open Source PostgreSQL GUI on Railway on Railway](https://railway.com/template/pgadmin4)**

- **Creator:** Heimdall
- **Category:** Storage
- **Total deploys:** 10

## Template content

### PgAdmin https://cdn.jsdelivr.net/gh/homarr-labs/dashboard-icons/svg/pgadmin.svg

- **Image:** dpage/pgadmin4:latest
- **Public domain:** Yes

## Documentation

![pgAdmin logo](https://docs.sensef.ru/images/reference/performance-aws-instances/method/pgadmin/pgadmin-starting.png)

# Deploy and Host pgAdmin 4 on Railway

pgAdmin 4 is the leading open source administration and development platform for PostgreSQL — a fully web-based GUI that lets you manage databases, run queries, inspect schemas, monitor server activity, and much more, all from a browser. 

Self-hosting pgAdmin gives your team a shared, always-on database management interface without installing anything locally. This Railway template deploys `dpage/pgadmin4:latest` with all required environment variables pre-configured, so you can run pgAdmin on Railway with a single click and connect it to any PostgreSQL instance — including Railway-hosted Postgres services via private networking.

## Getting Started with pgAdmin 4 on Railway

Once the Railway deployment is live, navigate to the public URL assigned to your service. You'll be presented with the pgAdmin login screen — sign in with the `PGADMIN_DEFAULT_EMAIL` and `PGADMIN_DEFAULT_PASSWORD` you configured. From the dashboard, click **Add New Server**, give it a name, then switch to the **Connection** tab. Enter the hostname (use the Railway private hostname for a co-deployed Postgres service, e.g. `postgres.railway.internal`), port `5432`, and your database credentials. Save the connection and you'll have full GUI access to your PostgreSQL database.

![pgAdmin dashboard screenshot](https://res.cloudinary.com/asset-cloudinary/image/upload/v1773941530/pgadmin_dashboard_ze6rzp.png)

## About Hosting pgAdmin 4

pgAdmin 4 is a complete rewrite of the original pgAdmin desktop client, rebuilt as a Python/Flask web application with a ReactJS frontend. It is the official management tool maintained by the PostgreSQL community and supports PostgreSQL 9.2 and above.

Key features:
- **Query Tool** — full-featured SQL editor with syntax highlighting, auto-complete, query history, and EXPLAIN visualizer
- **Schema Browser** — hierarchical tree view of databases, schemas, tables, views, functions, roles, and extensions
- **ERD Tool** — auto-generates entity-relationship diagrams from existing schemas
- **Backup & Restore** — GUI-driven `pg_dump` / `pg_restore` with format and compression options
- **Server Monitoring** — real-time dashboards for active sessions, locks, and transaction throughput
- **pgAgent** — optional job scheduling engine for automating maintenance tasks
- **Multi-server management** — connect to and manage multiple PostgreSQL servers from a single interface

## Why Deploy pgAdmin 4 on Railway

Railway handles the infrastructure so you can focus on your databases:

- No Docker config, volume management, or reverse proxy setup required
- Persistent admin session storage out of the box
- One-click redeploys whenever a new `dpage/pgadmin4` image is released
- Managed TLS and custom domains via Railway's built-in proxy
- Private networking to Railway Postgres services — no public port exposure needed
- Environment variable management through the Railway dashboard

## Common Use Cases

- **Team database management** — give your whole engineering team a shared pgAdmin instance connected to a staging or production Postgres service, without everyone needing local installs or VPN credentials
- **Schema design and migration review** — use the ERD tool and query diff features during sprint planning or code review
- **Database monitoring** — keep the Railway-hosted pgAdmin open on a secondary monitor for a live view of active queries, locks, and vacuum status
- **Ad-hoc data exploration** — run one-off analytical queries or data corrections during incidents without connecting a local SQL client

## Dependencies for pgAdmin 4

- **pgAdmin 4** — `dpage/pgadmin4:latest` ([Docker Hub](https://hub.docker.com/r/dpage/pgadmin4/), [GitHub](https://github.com/pgadmin-org/pgadmin4))

No database is bundled in this template — pgAdmin is a management client only. Connect it to an existing Railway Postgres service or any external PostgreSQL instance.

### Environment Variables Reference

| Variable | Description | Required |
|---|---|---|
| `PGADMIN_DEFAULT_EMAIL` | Login email for the pgAdmin admin account | ✅ Yes |
| `PGADMIN_DEFAULT_PASSWORD` | Password for the pgAdmin admin account | ✅ Yes |
| `PORT` | Port pgAdmin listens on inside the container (default: `80`) | Optional |
| `RAILWAY_RUN_UID` | Set to `0` to run as root — required on Railway due to filesystem permission constraints | ✅ Yes |

### Deployment Dependencies

- **Runtime**: Python 3.9+ (bundled in container)
- **Docker image**: `dpage/pgadmin4:latest`
- **Docker Hub**: https://hub.docker.com/r/dpage/pgadmin4/
- **GitHub**: https://github.com/pgadmin-org/pgadmin4
- **Official docs**: https://www.pgadmin.org/docs/pgadmin4/latest/container_deployment.html

## Minimum Hardware Requirements for pgAdmin 4

| Resource | Minimum | Recommended |
|---|---|---|
| CPU | 0.5 vCPU | 1 vCPU |
| RAM | 256 MB | 512 MB |
| Storage | 200 MB (image) | 500 MB (with logs/config) |
| Python | 3.9+ | 3.11+ |

pgAdmin itself is lightweight. RAM usage scales with the number of active connections and open query tabs. For teams with multiple simultaneous users, 512 MB or more is advisable.

## pgAdmin 4 vs DBeaver vs TablePlus

| Feature | pgAdmin 4 | DBeaver CE | TablePlus |
|---|---|---|---|
| Open source | ✅ Yes | ✅ Yes | ❌ No |
| Self-hostable (web) | ✅ Yes | ❌ Desktop only | ❌ Desktop only |
| PostgreSQL-specific features | ✅ Deep (ERD, pgAgent, EXPLAIN) | Partial | Partial |
| Multi-database support | ❌ PostgreSQL only | ✅ 80+ databases | ✅ Multiple |
| Pricing | Free | Free (EE is paid) | Free tier + paid |
| ER diagrams | ✅ Built-in | ✅ EE only | ❌ |

pgAdmin is the right choice when PostgreSQL is your primary database and you want a web-accessible shared interface — DBeaver wins for multi-database environments, TablePlus for a fast native desktop experience.

## Self-Hosting pgAdmin 4

**Docker (quickest):**

```
docker run -d \
  --name pgadmin \
  -p 5050:80 \
  -e PGADMIN_DEFAULT_EMAIL=admin@example.com \
  -e PGADMIN_DEFAULT_PASSWORD=supersecret \
  dpage/pgadmin4:latest
```

Visit `http://localhost:5050` to access the interface.

**Docker Compose (with Postgres):**

```
services:
  postgres:
    image: postgres:16-alpine
    environment:
      POSTGRES_PASSWORD: pgpass
    volumes:
      - pgdata:/var/lib/postgresql/data

  pgadmin:
    image: dpage/pgadmin4:latest
    ports:
      - "5050:80"
    environment:
      PGADMIN_DEFAULT_EMAIL: admin@example.com
      PGADMIN_DEFAULT_PASSWORD: supersecret
    depends_on:
      - postgres

volumes:
  pgdata:
```

Inside pgAdmin, connect to the Postgres container using hostname `postgres`, port `5432`.

## Is pgAdmin 4 Free?

pgAdmin is fully free and open source, released under the PostgreSQL Licence (similar to BSD/MIT). There are no paid tiers, enterprise editions, or usage limits. The only cost of running it on Railway is your infrastructure — compute and any egress. The Docker image (`dpage/pgadmin4`) is maintained by the pgAdmin project and updated regularly alongside PostgreSQL releases.

## FAQ

**What is pgAdmin 4?**
pgAdmin 4 is the official open source GUI for PostgreSQL. It runs as a web application and lets you manage databases, write and execute SQL, inspect schemas, visualize query plans, and monitor server performance — all from a browser.

**What does this Railway template deploy?**
It deploys a single `dpage/pgadmin4:latest` container with the admin email, password, and port pre-configured. No Postgres instance is bundled — pgAdmin is a client tool that connects to an existing PostgreSQL server. Add a Railway Postgres service to the same project and connect using its private hostname.

**Why is `RAILWAY_RUN_UID=0` needed?**
Railway's container filesystem requires root permissions for pgAdmin to write its SQLite config database and session files. Without this, pgAdmin will fail to start with permission-denied errors.

**Can I connect pgAdmin to a Railway Postgres service?**
Yes. In Railway, add a Postgres service to the same project. In pgAdmin's server connection dialog, use the private hostname (e.g. `postgres.railway.internal`) and port `5432`. Private networking is available within the same Railway environment at no extra cost.

**Is pgAdmin safe to expose publicly?**
pgAdmin is protected by the login credentials you set via `PGADMIN_DEFAULT_EMAIL` and `PGADMIN_DEFAULT_PASSWORD`. Railway provides TLS termination automatically. For production, use a strong password and consider restricting access with a Railway private network or IP allowlist if your plan supports it.

**Does pgAdmin support PostgreSQL 16 and 17?**
Yes. pgAdmin 4 supports PostgreSQL 9.2 through the latest release. The `dpage/pgadmin4:latest` image is updated alongside each PostgreSQL version and includes bundled `pg_dump`, `pg_restore`, and `psql` binaries for versions 13 through 17.


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