Backend Runtimes & Frameworks

IN

instancez

4.4/5.01 verified review

Freemium·Open Source·Apache-2.0

Developer and LLM-friendly Supabase drop-in replacement packaged as a single Go binary.

• Drop-in wire compatibility with the standard supabase-js client.
• Simplified self-hosting deployment using a single Go binary.
• Engineered natively for coding agents and AI assistant workflows.

61stars on GitHub

AP

ABP Platform

4.4/5.01 verified review

Freemium·Open Source·LGPL-3.0

Open-source web application framework on top of ASP.NET Core for enterprise apps.

• Modular architecture structured following ASP.NET Core best practices.
• Pre-built modules that eliminate boilerplate code for standard features.
• Multiple UI options including Angular, Blazor, and MVC.

14.5kstars on GitHub

DE

Deepnote

4.4/5.01 verified review

Freemium

Collaborative data science and analytics workspace with Python and SQL support.

• Real-time multi-user collaboration similar to Google Docs for notebooks.
• Native integration with multiple SQL data sources and relational databases.
• Generation of interactive applications and dashboards directly from code.

NA

NativeAppTemplate

4.3/5.01 verified review

Freemium·Open Source·MIT

The fastest way to build a Rails-backed native iOS/Android SaaS app.

• True native architecture using Swift and Kotlin.
• Structured and scalable backend powered by Ruby on Rails.
• Pre-wired authentication and multitenancy components.

15stars on GitHub

SE

Sectr

4.3/5.01 verified review

Freemium·Open Source·MIT

Single source of truth and state management for artificial intelligence agents

• Direct integration with existing agent frameworks without restructuring
• Ability to scale agents to zero during human approval waits
• Native support for multiple AI SDKs in Python

AN

Anaconda

4.3/5.01 verified review

Freemium

Data science and AI platform for Python and R package management and virtual environments.

• Vast ecosystem of pre-compiled packages for data science and machine learning.
• Efficient management of complex virtual environments and binary dependencies in Python.
• Native integration with AI tools and multiple models from the development environment.

FA

Fireworks AI

4.3/5.01 verified review

Contact Sales

Inference and training platform for open artificial intelligence models

• High-speed inference for open language models
• Support for LoRA adapters and custom training
• Ability to route queries across multiple models to optimize costs

SaaS boilerplate built with NestJS and automated TypeDoc generation.

• Automated OpenAPI and TypeDoc generation through CI pipelines.
• Modular architecture designed for multi-tenant backend systems.
• Open source codebase available for self-hosted deployment.

BT

BTST

4.1/5.01 verified review

Freemium·Open Source·MIT

Open-source TypeScript system to add full features to your existing React applications.

• Fully open-source TypeScript architecture.
• Allows adding full-stack plugins without a hosted control plane.
• Generated code and UI can be fully ejected and modified.

79stars on GitHub

FI

Fixrb

4.0/5.01 verified review

Freemium·Open Source·MIT

A Ruby testing framework where test suites are RFC 2119 specifications without class coupling.

• RFC 2119 specification approach for clearer test readability.
• Strict class decoupling using duck typing paradigms.
• Execution of each context within its own isolated process.

47stars on GitHub

UN

Unity

4.0/5.01 verified review

Freemium

The leading real-time development engine for building interactive 2D, 3D, and XR experiences.

• Cross-platform ecosystem with native deployment to consoles, mobile devices, and XR systems
• Extensive developer community with a vast library of ready-to-use plugins and assets
• Extensible C#-based visual environment with optimized compilation support

LH

Labynet HC

4.0/5.01 verified review

Free

Native macOS environment running original HyperCard stacks and HyperTalk scripts.

• Compatible with original HyperCard stacks and HyperTalk scripts.
• Native macOS application with universal support for Intel and Apple Silicon.
• Distributed as free software with zero licensing cost.

21stars on GitHub