FerretDB (formerly MangoDB) is an open-source proxy, which converts MongoDB wire protocol queries to SQL, and uses PostgreSQL as a database engine.
Cost / License
- Free
- Open Source (Apache-2.0)
Platforms
- Mac
- Windows
- Linux
- Online
- Self-Hosted
FaunaDB is described as 'Fauna is a flexible, developer-friendly, transactional database delivered to you as a secure, web-native API' and is an app in the development category. There are four alternatives to FaunaDB for a variety of platforms, including Web-based, Mac, Windows, Linux and BSD apps. The best FaunaDB alternative is FerretDB, which is both free and Open Source. Other great apps like FaunaDB are OrbitDB, HarperDB and Codehooks.io.
FerretDB (formerly MangoDB) is an open-source proxy, which converts MongoDB wire protocol queries to SQL, and uses PostgreSQL as a database engine.
OrbitDB is a serverless, distributed, peer-to-peer database. OrbitDB uses IPFS as its data storage and IPFS Pubsub to automatically sync databases with peers. It's an eventually consistent database that uses CRDTs for conflict-free database merges making OrbitDB an excellent...
HarperDB is a database that optimizes the data value chain for any size company without sacrificing features, functionality and stability. HarperDB is designed to handle most workloads on a single product.

Codehooks.io is a minimalistic approach to backend as a service which lets you get real quickly. Deploy an API using built-in NoSQL database storage, message queues & scheduled jobs. Perfect for Apps, JAMstack sites, IoT and automation.



