Top 12 Open-Source Alternatives to Microsoft SQL Server

Product categories

Data Integration Databases Document Databases Graph Databases Key-Value Database NoSQL Database As A Service NoSQL Databases Relational Databases SQL Database Tool

Summary

The top open-source alternatives to Microsoft SQL Server are MongoDB, PostgreSQL, and MariaDB. One of the criteria for ordering this list is the number of mentions that products have on reliable external sources. You can suggest additional sources through the form here.

MongoDB Landing Page
1

MongoDB

MongoDB (from "humongous") is a scalable, high-performance NoSQL database.
Pricing:
- Open Source
#NoSQL Databases #Databases #Document Databases 15 social mentions
PostgreSQL Landing Page
2

PostgreSQL

PostgreSQL is a powerful, open source object-relational database system.
Pricing:
- Open Source
#Databases #Relational Databases #NoSQL Databases 15 social mentions
MariaDB Landing Page
3

MariaDB

An enhanced, drop-in replacement for MySQL
Pricing:
- Open Source
#Databases #Relational Databases #NoSQL Databases 33 social mentions
SQLite Landing Page
4

SQLite

SQLite Home Page
Pricing:
- Open Source
#Databases #Relational Databases #NoSQL Databases 18 social mentions
Redis Landing Page
5

Redis

Redis is an open source in-memory data structure project implementing a distributed, in-memory key-value database with optional durability.
Pricing:
- Open Source
#Key-Value Database #NoSQL Databases #Databases 183 social mentions
MySQL Landing Page
6

MySQL

The world's most popular open source database
Pricing:
- Open Source
#Databases #Relational Databases #SQL Database 4 social mentions
CouchBase Landing Page
7

CouchBase

Document-Oriented NoSQL Database
Pricing:
- Open Source
#NoSQL Databases #Databases #Graph Databases 2 social mentions
Firebird Landing Page
8

Firebird

Relational database offering many ANSI SQL standard features that runs on Linux, Windows, and a variety of Unix platform
Pricing:
- Open Source
#Databases #NoSQL Databases #Relational Databases 3 social mentions
Amazon RDS Landing Page

9

Amazon RDS

Easy to manage relational databases optimized for total cost of ownership.

#Databases #NoSQL Databases #Relational Databases 68 social mentions
Oracle DBaaS Landing Page
10

Oracle DBaaS

See how Oracle Database 12c enables businesses to plug into the cloud and power the real-time enterprise.
Pricing:
- Open Source
#Databases #Relational Databases #NoSQL Databases
ArangoDB Landing Page
11

ArangoDB

A distributed open-source database with a flexible data model for documents, graphs, and key-values.
Pricing:
- Open Source
#Graph Databases #NoSQL Databases #Databases 3 social mentions
Realm.io Landing Page
12

Realm.io

Realm is a mobile platform and a replacement for SQLite & Core Data. Build offline-first, reactive mobile experiences using simple data sync.
Pricing:
- Open Source
#Data Integration #Databases #NoSQL Databases 24 social mentions