A list of SaaS, PaaS and IaaS offerings that have free tiers of interest to devops and infradev

RAGFlow is a leading open-source Retrieval-Augmented Generation (RAG) engine that fuses cutting-edge RAG with Agent capabilities to create a superior context layer for LLMs

Ready-to-run cloud templates for RAG, AI pipelines, and enterprise search with live data. 🐳Docker-friendly.⚡Always in sync with Sharepoint, Google Drive, S3, Kafka, PostgreSQL, real-time data APIs,…

An open source payments switch written in Rust to make payments fast, reliable and affordable

Building a modern alternative to Salesforce, powered by the community.

Langchain-Chatchat（原Langchain-ChatGLM）基于 Langchain 与 ChatGLM, Qwen 与 Llama 等语言模型的 RAG 与 Agent 应用 | Langchain-Chatchat (formerly langchain-ChatGLM), local knowledge based LLM (like ChatGLM, Qwen and…

Fullstack app framework for web, desktop, and mobile.

Simple, open source, lightweight and privacy-friendly web analytics alternative to Google Analytics.

AI orchestration framework to build customizable, production-ready LLM applications. Connect components (models, vector DBs, file converters) to pipelines or agents that can interact with your data…

[EMNLP2025] "LightRAG: Simple and Fast Retrieval-Augmented Generation"

A free, open-source SaaS app starter for React & Node.js with superpowers. Full-featured. Community-driven.

Algorithmic trading and quantitative trading open source platform to develop trading robots (stock markets, forex, crypto, bitcoins, and options).

Unity / XNA game patcher and plugin framework

A full stack for bitcoin and blockchain-based applications

A highly performant e-commerce template using Next.js

A Laravel and Filament-powered accounting platform featuring full double-entry accrual accounting, delivering modern automation for professional financial management.

Flutter Grocery Shopping App (Mobile App, Web App)

Enatega is a fully realized and customizable food delivery application that can be used to set up your own order/delivery management system. For more information, visit the Enatega product page: 🚀🛒📦🌐

Customizable, multilanguage Telegram shop bot with Payments support

This is a basic and straightforward Telegram Mini App(TMA) implemented using plain JavaScript, HTML, and CSS. This project aims to provide a minimalistic example of how to create a simple TWA and l…

A free open source RAG based AI legal assistant.

The Lumen Database collects and analyzes legal complaints and requests for removal of online materials.

AI + Legal APIs: A Tool-Based Retrieval Augmented Generation Workbench for Legal AI UX Research.

TakedownGPT combines a LangChain Agent with OpenAI function calling to automate the discovery of domain registrars and drafting of takedown requests for malicious / copyright infringing domains.

AI Lawyer is an intelligent reasoning legal assistant powered by DeepSeek , Ollama RAG and LangChain, designed to streamline legal research and document analysis. By leveraging retrieval-augmented …