MongoDB vs Redis
No clear leader: MongoDB (75.7) and Redis (70.8) are within the 5-point margin; treat as a tie. The attribute-by-attribute breakdown below, with a source and date on every value, is the honest way to compare them.
Capabilities
Feature-by-feature on the axes that matter for databases. “-” means undocumented, not absent.
What each one is
The product in its own terms, so the numbers below have context.
MongoDB
MongoDB is a fully managed cloud database that uses flexible document-based storage and supports complex queries, analytics, and advanced search capabilities including vector and full-text search functionality.
Redis
A multi-purpose in-memory data platform that functions as a cache, vector database, document store, streaming engine, and message broker, with built-in support for advanced search, transactions, and multi-region replication.
Pricing
List pricing as published by each vendor, with the date we read it. Always verify at the source before you buy.
MongoDB
Free tier (512MB), Flex from $8–$30/month, Dedicated from $56.94/month
- Free (M0)Free
- 512MB storage
- 32MB sort memory
- 100 ops/sec
- shared vCPUs
- replica set
- Flex Clusters$8–$30/month based on usage
- hourly billing
- monthly invoices
- Dedicated ClustersFrom $56.94/month
- dedicated resources
- auto-scaling
- horizontal scaling via sharding
Redis
Free open-source software plus three cloud subscription tiers (Essentials, Flex, Pro)
- Essentials-
- Single database
- Index on RAM
- 99.99% uptime
- Flex-
- Tiered RAM and SSD storage
- Adjustable RAM ratio
- 99.99% uptime
- Up to 80% cost savings vs RAM alone
- Pro-
- Unlimited databases
- Unlimited storage
- Unlimited ops/sec
- Active-Active multi-region
- 99.999% uptime
Platform & deployment
Where each product runs and how it can be hosted. A dash means undocumented, not unsupported.
Integrations
What each product connects to. Counts come from the vendor's own integration directory where one exists.
MongoDB
- Vertex AI
- BigQuery
- Datastream
- Google Kubernetes Engine
- Looker
- Apigee
- Apache Kafka
- Google Vertex AI
- Google Cloud BigQuery
- Google Cloud Datastream
- Google Cloud Functions
- Kubernetes
Redis
- Oracle
- PostgreSQL
- MySQL
- MariaDB
- Percona XtraDB
- Microsoft SQL Server
- MongoDB
- Cassandra
- Google Cloud SQL
- Grafana
- Prometheus
- AWS
- Microsoft Azure
- Google Cloud
- Python
- Node.js
- Java
- Go
- .NET
- Datadog
- New Relic
- Azure
MongoDB or Redis: which one depends on you
A composite score cannot know your constraints. Describe them and both get re-weighted against what you actually need, with the evidence behind every position.
Free to run, no account needed to start. How the evaluation works
Comparison generated from independently-sourced facts. Every value links to its source and retrieval date. See the method.