---
title: Scale MongoDB Clusters
description: Resize clusters and add standby nodes.
product: Databases
url: https://docs.digitalocean.com/products/databases/mongodb/how-to/scale-cluster/
last_updated: "2026-07-31"
---

> **For AI agents:** The documentation index is at [https://docs.digitalocean.com/llms.txt](https://docs.digitalocean.com/llms.txt). Markdown versions of pages use the same URL with `index.html.md` in place of the HTML page (for example, append `index.html.md` to the directory path instead of opening the HTML document).

# Scale MongoDB Clusters

Generated on 1 Aug 2026

MongoDB is a source-available cross-platform document-oriented database program for high-volume storage. Classified as a NoSQL database program, MongoDB uses JSON-like documents with optional schemas.

[How to Resize MongoDB Database Clusters](https://docs.digitalocean.com/products/databases/mongodb/how-to/resize/index.html.md): Change the size of your database cluster to accommodate your data needs.

[How to Add Standby Nodes to MongoDB Database Clusters](https://docs.digitalocean.com/products/databases/mongodb/how-to/add-standby-nodes/index.html.md): Add standby nodes to new or existing MongoDB database clusters for high availability.