Open Source Backend Development Tools

Alternative toAWS Amplify

Open source Apple SDK for Firebase auth, data, push and crashes

• 6,974 GitHub stars
• Apache-2.0Licence Apache-2.0

InDeveloper Tools

TypeScript to native executables, no runtime required

• 6,369 GitHub stars
• Apache-2.0Licence Apache-2.0

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 toAugment AI

AI-powered codebase analysis with knowledge graphs

• 5,268 GitHub stars
• MITLicence MIT

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 toPlainID

Move access control out of app code into testable YAML policies

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

Alternative toGoogle Gemini Enterprise Agent Platform

Agentic AI framework for the JVM

• 4,524 GitHub stars
• Apache-2.0Licence Apache-2.0
• #AI Agents

InCustomer Support

Open-source tools that work instantly, no signup required

• 4,511 GitHub stars
• GPL-3.0Licence GPL-3.0