API Infrastructure Open Source Tools

Alternative toAmazon RDS for MySQL

Open source MySQL-compatible relational database server

• 8,393 GitHub stars
• GPL-2.0Licence GPL-2.0
• #Database

Alternative toCouchbase Capella

NoSQL database with multi-primary sync and HTTP API

• 6,981 GitHub stars
• Apache-2.0Licence Apache-2.0
• #Database

Alternative toNeo4j

Distributed open source graph database for massive scale

• 5,858 GitHub stars
• Apache-2.0Licence Apache-2.0
• #Database

Alternative toPusher

Self-hosted Pusher-compatible WebSocket server, open source

• 5,635 GitHub stars
• AGPL-3.0Licence AGPL-3.0

Alternative toKong Konnect

Unified API keys, gateways, and observability for developers.

• 5,471 GitHub stars
• FSL-1.1-ALv2Licence FSL-1.1-ALv2

Alternative toAzure Cosmos DB

Multi-model NoSQL database: graphs, docs, and key-value

• 4,995 GitHub stars
• Apache-2.0Licence Apache-2.0
• #Database

Alternative toSlack

Open protocol for secure, decentralized messaging and VoIP

• 4,716 GitHub stars
• AGPL-3.0Licence AGPL-3.0
• #Chat

Alternative toPlainID

Move access control out of app code into testable YAML policies

• 4,627 GitHub stars
• Apache-2.0Licence Apache-2.0

Alternative toiText 7

Free open source Java library for creating and editing PDFs

• 4,378 GitHub stars

Alternative toAdobe Experience Manager

Open source CMS for enterprise and complex digital experiences

• 4,292 GitHub stars
• #CMS