Install using .tgz Tarball on macOS


The following tutorial downloads the .tgz file directly to install MongoDB Community Edition on macOS. To install using brew, see Install MongoDB Community Edition on macOS instead.


MongoDB 4.2+ only supports macOS versions 10.12 and later on Intel x86-64. See Supported Platforms for more information.

Install MongoDB Community Edition


To install a different version of MongoDB, please refer to that version’s documentation. To install the previous version, see the tutorial for version 4.0.


Download the MongoDB .tgz tarball.

Download the tarball for your system from the MongoDB Download Center.


Extract the files from the downloaded archive.

tar -zxvf mongodb-macos-x86_64-4.2.1.tgz

If your web browser automatically unzips the file as part of the download, the file would end in .tar instead.


Ensure the binaries are in a directory listed in your PATH environment variable.

The MongoDB binaries are in the bin/ directory of the tarball. You can either:

  • Copy the binaries into a directory listed in your PATH variable, such as /usr/local/bin (Update /path/to/the/mongodb-directory/ with your installation directory as appropriate)

    sudo cp /path/to/the/mongodb-directory/bin/* /usr/local/bin/
  • Create symbolic links to the binaries from a directory listed in your PATH variable, such as /usr/local/bin (Update /path/to/the/mongodb-directory/ with your installation directory as appropriate):

    sudo ln -s  /path/to/the/mongodb-directory/bin/* /usr/local/bin/

Run MongoDB


Create the data directory.

Before you start MongoDB for the first time, you must create the directory to which the mongod process will write data.

For example, to create the /usr/local/var/mongodb directory:

sudo mkdir -p /usr/local/var/mongodb


Starting with macOS 10.15 Catalina, Apple restricts access to the MongoDB default data directory of /data/db. On macOS 10.15 Catalina, you must use a different data directory, such as /usr/local/var/mongodb.


Create the log directory.

You must also create the directory in which the mongod process will write its log file:

For example, to create the /usr/local/var/log/mongodb directory:

sudo mkdir -p /usr/local/var/log/mongodb

Set permissions for the data and log directories.

Ensure that the user account running mongod has read and write permissions for these two directories. If you are running mongod as your own user account, and you just created the two directories above, they should already accessible to your user. Otherwise, you can use chown to set ownership, substituting the appropriate user:

sudo chown my_mongodb_user /usr/local/var/mongodb
sudo chown my_mongodb_user /usr/local/var/log/mongodb

Run MongoDB.

To run MongoDB, run the mongod process at the system prompt, providing the two parameters dbpath and logpath from above, and the fork parameter to run mongod in the background. Alternatively, you may choose to store the values for dbpath, logpath, fork, and many other parameters in a configuration file.

Run mongod with command-line parameters

Run the mongod process at the system prompt, providing the three necessary parameters directly on the command-line:

mongod --dbpath /usr/local/var/mongodb --logpath /usr/local/var/log/mongodb/mongo.log --fork

Run mongod with a configuration file

Run the mongod process at the system prompt, providing the path to a configuration file with the config parameter:

mongod --config /usr/local/etc/mongod.conf


If you receive an error message indicating that mongod could not be opened, go to System Preferences > Security and Privacy. Under the General tab, click the “Allow Anyway” button to the right of the message about mongod.


Verify that MongoDB has started successfully.

Verify that MongoDB has started successfully:

ps aux | grep -v grep | grep mongod

If you do not see a mongod process running, check the logfile for any error messages.


Begin using MongoDB.

Start a mongo shell on the same host machine as the mongod. You can run the mongo shell without any command-line options to connect to a mongod that is running on your localhost with the default port of 27017:



If you needed to explicitly approve the mongod application in System Preferences above, you must also do so for mongo.

For more information on connecting using the mongo shell, such as to connect to a mongod instance running on a different host and/or port, see The mongo Shell.

To help you start using MongoDB, MongoDB provides Getting Started Guides in various driver editions. See Getting Started for the available editions.

Additional Considerations


Starting with MongoDB 3.6, MongoDB binaries, mongod and mongos, bind to localhost by default.

When bound only to the localhost, these binaries can only accept connections from clients that are running on the same machine. Remote clients cannot connect to the binaries bound only to localhost. For more information, including how to override and bind to other ip addresses, see Localhost Binding Compatibility Changes.