localhost:5555: what runs on it and how to open it
Port 5555 is the default port of Prisma Studio and Celery Flower. How to open them and fix errors.
Open this address: http://localhost:5555This opens on your own computer. It only works if the program is running.
localhost:5555 can be Prisma Studio or Celery Flower, depending on what you started. Both are local admin pages, so keep them off the public internet.
What runs on localhost:5555
- Prisma Studio, the data viewer started by npx prisma studio
- Celery Flower, the task monitor
Commands to start and test port 5555
npx prisma studionpx prisma studio --port 5556celery -A proj flowerFind what is using port 5555
Run these in a terminal on your computer. Nothing is sent to this site.
If localhost:5555 will not open
- Prisma Studio says no schema found
- Run the command inside the project folder that has prisma/schema.prisma.
- Two tools want 5555
- Prisma Studio and Flower both default to 5555. Start one on another port.
- Port 5555 is already in use
- Another program is on this port. Find it with the tool below and stop it, or start yours on another port.
- This site can’t be reached (ERR_CONNECTION_REFUSED)
- The program is not running. Start it and keep that terminal open. See the full checklist.
- Works on your computer, not on your phone
- Start the server on all network addresses and use your computer’s IP address. See how to open localhost from your phone.
Other ports like 5555
| Port | Usually used by |
|---|---|
| localhost:11434 | Ollama (AI models) |
| localhost:5601 | Kibana |
| localhost:11501 | Not a standard port: check what is using it |
| localhost:9200 | Elasticsearch |
| localhost:5672 | RabbitMQ |
| localhost:15672 | RabbitMQ admin page |
| localhost:9090 | Prometheus |
Questions about localhost:5555
- Which one am I seeing?
- Look at the page title. Prisma Studio shows your database tables, and Flower shows Celery workers and tasks.
- Is localhost:5555 safe?
- Yes, as long as it stays on localhost. Only your own computer can reach it. It becomes reachable from other devices only if you start the program on 0.0.0.0 or your computer's IP address. Do not put development or admin tools on the public internet.
- Can I use a different port instead of 5555?
- Yes. Most programs let you choose the port with a setting or a command option. Pick a free port above 1024 and open that number instead.
- How do I check what is using port 5555?
- Use the port checker on this page. It shows the command for Windows, macOS and Linux and does not send anything to this site.
- Can I open localhost:5555 from my phone?
- Yes, if both are on the same Wi-Fi. Start the program so it listens on all addresses, then open your computer's IP address with the port on the phone. A firewall on the computer can still block it.
Free tools that help
- Common ports listSearch a list of common TCP and UDP port numbers: SSH 22, HTTP 80, HTTPS 443, MySQL 3306, PostgreSQL 5432 and more, with dev server ports.