Port 3000HTTP (Development Web Servers)

TCP port 3000 commonly serves HTTP apps and development servers; IANA also lists it for the RemoteWare Client.

transport: tcp · udp
in transit: cleartext
assignment: official
risk: 5/10
lookups: 0

also known as remoteware-cl, RemoteWare Client, Grafana, Node.js development server

3 other services are registered on port 3000. compare all 4 →

Technical Details

what runs on :3000

There is no single protocol guaranteed on port 3000. In common TCP deployments, it carries HTTP: a client connects and sends an HTTP request, and the server returns an HTTP response. These services are often plaintext by default, though TLS may be configured or provided by a reverse proxy. Grafana uses TCP/3000 by default, and Rails and many Node.js applications use it as a development or application port. The IANA registry lists RemoteWare Client for TCP and UDP; that registered name does not describe the typical HTTP services engineers encounter on TCP/3000.

Security Information

exposure of :3000

risk score

5/ 10caution

worth attention. how exposed you are depends on configuration — don't leave it reachable from the internet without a reason.

web services averages 3.3 across 179 ports — this one sits 1.7 above.

in transit

cleartext

credentials and payloads are readable by anyone on path

assignment

official

registered with iana for this service — scanners fingerprint it by number

reachable over

tcp · udp

udp is connectionless — source addresses are trivially spoofed and it is a reflection favourite

security overview

Treat an open TCP/3000 as an application-specific web service and identify it before allowing access. Development servers and dashboards may expose debug features, internal data, or administrative functions, and HTTP deployments do not encrypt traffic by default. Avoid exposing it directly to the internet unless the application is hardened, access-controlled, and protected with TLS; restrict UDP/3000 unless you have identified a required service.

Record

iana registry entry

port: :3000
service: HTTP (Development Web Servers)
transport: TCPUDP
encryption: cleartext
assignment: iana registered
risk: 5/10caution
category: Web Services
usage: The IANA entry names the RemoteWare Client, but engineers commonly encounter TCP/3000 as an HTTP service: Rails development servers, Node.js applications, and Grafana's default web interface all commonly use it. UDP/3000 is not a general-purpose web service and is much less commonly encountered.
lookups: 0rank 993
added: 2026-09-26
updated: 2026-09-26
references: IANA service name registry — port 3000

Something wrong?

This record is maintained by the engineers who use port 3000. Every field on it is editable — change what's wrong, say how you know, and a reviewer publishes it, usually within a minute. Last touched 2026-09-26.

01edit any field on a page of its own
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edit this record →back to the registry

Related Ports

all 179 in web services →

the 8 most looked-up other ports in web services — 179 ports carry that label.

port	service	proto	category	risk	views
:8888	Sun Answerbook & Alt HTTP	TCP	Web Services	caution	123.9k
:8000	Intel Remote Desktop / Alternate HTTP Port	TCP	Web Services	safe	84.3k
:8888	NewsEDGE	TCPUDP	Web Services	caution	83.3k
:8888	HTTP Alternative Port	TCP	Web Services	caution	76.5k
:8888	GNUmp3d Streaming HTTP	TCP	Web Services	caution	76.3k
:9080	Groove RPC	TCPUDP	Web Services	caution	70.8k
:8881	Atlasz Secure Server	TCP	Web Services	caution	67.6k
:80	HTTP	TCPUDP	Web Services	caution	67.3k

risk mix of the 8 listed

safe13%
caution88%

0 of 8 encrypted

Port :3000HTTP (Development Web Servers)

Technical Details

Security Information

Related Ports

Port 3000HTTP (Development Web Servers)