Is this tool free to use?

Yes, this tool is completely free to use with no usage limits, registration, or hidden charges.

Is my data sent to a server?

No. All processing happens entirely in your browser. Your data never leaves your device, ensuring complete privacy and security.

Does this tool work offline?

Once the page is loaded, the tool works entirely client-side and does not require an active internet connection for its core functionality.

What is a MongoDB connection string?

A MongoDB connection string (URI) uses the format `mongodb://user:password@host:27017/dbname?authSource=admin&ssl=true`. It can include multiple hosts for replica sets: `mongodb://host1:27017,host2:27017/dbname?replicaSet=rs0`.

LangStop/

MongoDB Connection String Builder

v1.0

MongoDB Builder

Local OnlyNo Login

Parse Existing Connection String

Paste a connection string to auto-detect the database and populate fields

Database Connection

Database Type

Host

Port

Database Name

Username

Password

SSL Mode

Warning: database

Database name is empty

Generated Connection Strings

Standard connection URI

mongodb://localhost

All Formats Preview

URI

mongodb://localhost

Spring Boot

# MongoDB Configuration
spring.data.mongodb.uri=mongodb://localhost
spring.data.mongodb.database=

TypeORM

import { DataSource } from "typeorm";
export const AppDataSource = new DataSource({
  type: "mongodb",
  host: "localhost",
  port: 27017,
  username: "",
  password: "",
  database: "",
  synchronize: false,
  logging: true,
});

Drizzle

import { defineConfig } from "drizzle-kit";

export default defineConfig({
  schema: "./src/db/schema.ts",
  out: "./drizzle",
  dialect: "mongodb",
  dbCredentials: {
    url: process.env.DATABASE_URL!
  },
});

# .env
DATABASE_URL="mongodb://localhost"

Docker Compose

version: '3.8'

services:
  mongodb:
    image: mongo:7
    container_name: mongodb-db
    restart: unless-stopped
    ports:
      - "27017:27017"
    environment:
      MONGO_INITDB_DATABASE: mydb
      MONGO_INITDB_ROOT_USERNAME: admin
      MONGO_INITDB_ROOT_PASSWORD: password
    volumes:
      - mongodb_data:/var/lib/mongodb/data

volumes:
  mongodb_data:

K8s Secret

apiVersion: v1
kind: Secret
metadata:
  name: mongodb-connection
type: Opaque
stringData:
  url: "mongodb://localhost"
---
apiVersion: v1
kind: ConfigMap
metadata:
  name: mongodb-config
data:
  host: "localhost"
  port: "27017"
  database: ""
  username: ""

.env

MONGODB_URI="mongodb://localhost"
MONGO_HOST="localhost"
MONGO_PORT=27017
MONGO_DB=""

MongoDB Shell

mongosh "mongodb://localhost"
# Or using connection options:
mongosh \
  --host localhost \
  --port 27017 \

MongoDB Connection String Builder

Generate, parse, and convert MongoDB connection URIs with replica sets, authentication, SSL, and write concern configuration.

MongoDB Connection String Builder

Generate and parse MongoDB connection URIs for standalone, replica set, and Atlas deployments.

MongoDB Connection String Formats

Standalone

mongodb://user:password@host:27017/dbname?authSource=admin

Replica Set

mongodb://user:password@host1:27017,host2:27017/dbname?replicaSet=rs0

Atlas (SRV)

mongodb+srv://user:password@cluster0.example.mongodb.net/dbname

mongosh CLI

mongosh "mongodb://user:password@host:27017/dbname?authSource=admin"

How to Use

Select MongoDB as your provider
Enter host, port, database, and credentials
Configure replica set, auth source, SSL, and write concern
Choose your output format and copy

Common Mistakes to Avoid

❌ Not specifying authSource for MongoDB authentication

✅ MongoDB uses the `admin` database for authentication by default. If your user is defined in another database, set `authSource` to that database name.

❌ Using mongodb:// instead of mongodb+srv:// for Atlas

✅ Always use `mongodb+srv://` for MongoDB Atlas connections. This enables automatic DNS-based seed list discovery and TLS encryption.

← Back to All Connection String Builders View All 14 Database Builders →

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LangStop/

MongoDB Connection String Builder

v1.0

MongoDB Builder

Local OnlyNo Login

Parse Existing Connection String

Paste a connection string to auto-detect the database and populate fields

Database Connection

Database Type

Host

Port

Database Name

Username

Password

SSL Mode

Warning: database

Database name is empty

Generated Connection Strings

Standard connection URI

mongodb://localhost

All Formats Preview

URI

mongodb://localhost

Spring Boot

# MongoDB Configuration
spring.data.mongodb.uri=mongodb://localhost
spring.data.mongodb.database=

TypeORM

import { DataSource } from "typeorm";
export const AppDataSource = new DataSource({
  type: "mongodb",
  host: "localhost",
  port: 27017,
  username: "",
  password: "",
  database: "",
  synchronize: false,
  logging: true,
});

Drizzle

import { defineConfig } from "drizzle-kit";

export default defineConfig({
  schema: "./src/db/schema.ts",
  out: "./drizzle",
  dialect: "mongodb",
  dbCredentials: {
    url: process.env.DATABASE_URL!
  },
});

# .env
DATABASE_URL="mongodb://localhost"

Docker Compose

version: '3.8'

services:
  mongodb:
    image: mongo:7
    container_name: mongodb-db
    restart: unless-stopped
    ports:
      - "27017:27017"
    environment:
      MONGO_INITDB_DATABASE: mydb
      MONGO_INITDB_ROOT_USERNAME: admin
      MONGO_INITDB_ROOT_PASSWORD: password
    volumes:
      - mongodb_data:/var/lib/mongodb/data

volumes:
  mongodb_data:

K8s Secret

apiVersion: v1
kind: Secret
metadata:
  name: mongodb-connection
type: Opaque
stringData:
  url: "mongodb://localhost"
---
apiVersion: v1
kind: ConfigMap
metadata:
  name: mongodb-config
data:
  host: "localhost"
  port: "27017"
  database: ""
  username: ""

.env

MONGODB_URI="mongodb://localhost"
MONGO_HOST="localhost"
MONGO_PORT=27017
MONGO_DB=""

MongoDB Shell

mongosh "mongodb://localhost"
# Or using connection options:
mongosh \
  --host localhost \
  --port 27017 \

MongoDB Connection String Builder

Generate, parse, and convert MongoDB connection URIs with replica sets, authentication, SSL, and write concern configuration.

MongoDB Connection String Builder

Generate and parse MongoDB connection URIs for standalone, replica set, and Atlas deployments.

MongoDB Connection String Formats

Standalone

mongodb://user:password@host:27017/dbname?authSource=admin

Replica Set

mongodb://user:password@host1:27017,host2:27017/dbname?replicaSet=rs0

Atlas (SRV)

mongodb+srv://user:password@cluster0.example.mongodb.net/dbname

mongosh CLI

mongosh "mongodb://user:password@host:27017/dbname?authSource=admin"

How to Use

Select MongoDB as your provider
Enter host, port, database, and credentials
Configure replica set, auth source, SSL, and write concern
Choose your output format and copy

Common Mistakes to Avoid

❌ Not specifying authSource for MongoDB authentication

✅ MongoDB uses the `admin` database for authentication by default. If your user is defined in another database, set `authSource` to that database name.

❌ Using mongodb:// instead of mongodb+srv:// for Atlas

✅ Always use `mongodb+srv://` for MongoDB Atlas connections. This enables automatic DNS-based seed list discovery and TLS encryption.

← Back to All Connection String Builders View All 14 Database Builders →

Other Database Connection Builders

PostgreSQL MySQL MariaDB SQLite SQL Server Oracle Redis Elasticsearch RabbitMQ Kafka ClickHouse Cassandra CockroachDB

Additional Parameters6

MongoDB Connection String Builder

MongoDB Connection String Builder

MongoDB Connection String Formats

Standalone

Replica Set

Atlas (SRV)

mongosh CLI

How to Use

Common Mistakes to Avoid

Other Database Connection Builders

Related Tools

All Developer Tools

JSON Tools Hub

Code Generation Hub

API Tools

Linux Tools

AI Prompt Engineering

Popular Developer Tools

JSON Formatter

JSON to YAML

JSON to TypeScript

JWT Decoder

Regex Tester

Base64 Encoder

Cron Helper

JSON to CSV

HTML Formatter

SQL Formatter

Timestamp Converter

Hash Generator

Password Generator

Additional Parameters6

MongoDB Connection String Builder

MongoDB Connection String Builder

MongoDB Connection String Formats

Standalone

Replica Set

Atlas (SRV)

mongosh CLI

How to Use

Common Mistakes to Avoid

Other Database Connection Builders