Open-source cloud software
1969 open-source libraries, tools and applications tagged cloud, ranked by how closely cloud is their primary purpose, then by adoption and maintenance health. Each entry links to a page with sources, use cases and when to choose or avoid it.
1969 products, primary matches first, then adoption-weighted; health v2 shown.
| Product | Health v2 | Stars | Maturity |
|---|---|---|---|
| quay/quay Project Quay is an open-source container image registry that builds, stores, and distributes container images. It implements the Docker Reg… | 95 | 2835 | active |
| datachain-ai/datachain DataChain is a Python library that turns unstructured files in S3, GCS, and Azure into typed, versioned datasets queryable at warehouse spe… | 88 | 2827 | active |
| Lepton AI LeptonAI is a Python library and `lep` CLI for operating NVIDIA DGX Cloud Lepton, a platform that unifies global GPU compute for AI develop… | 96 | 2824 | active |
| beilunyang/moemail MoeMail is a self-hostable temporary (disposable) email service with a cute web UI, built on Next.js and the Cloudflare stack (Pages, Worke… | 80 | 2822 | active |
| useautumn/autumn Autumn is an open-source billing and pricing platform that acts as a control layer between Stripe and your application, managing subscripti… | 66 | 2818 | active |
| trustgraph-ai/trustgraph TrustGraph is an open-source context interoperability layer that builds unified semantic context layers using hypergraphs, knowledge graphs… | 78 | 2808 | active |
| OpenStack Swift OpenStack Swift is a distributed object storage system that scales from a single machine to thousands of servers, optimized for multi-tenan… | 75 | 2802 | stable |
| awslabs/amazon-redshift-utils A collection of Python utilities, admin scripts, views, and stored procedures for managing and optimizing Amazon Redshift data warehouse cl… | 46 | 2802 | active |
| pytorch/xla PyTorch/XLA is a Python package that connects the PyTorch deep learning framework to XLA devices such as Google Cloud TPUs via the XLA deep… | 63 | 2801 | active |
| opensolon/solon Solon is a Java enterprise application development framework built from scratch as a lighter, faster alternative to Spring Boot/Spring Clou… | 92 | 2794 | active |
| http4k http4k is a lightweight, functional HTTP toolkit for Kotlin where applications are just functions from Request to Response, with no annotat… | 95 | 2792 | stable |
| Erda Erda is an enterprise-grade cloud-native application platform built on Kubernetes that provides DevOps, microservice governance, and multi-… | 67 | 2756 | active |
| crbnos/carbon Carbon is an open-core manufacturing operating system combining ERP, MES, and QMS functionality in a single web application built on Supaba… | 70 | 2749 | active |
| keel-hq/keel Keel is a lightweight, stateless Kubernetes operator that automatically updates Deployments, StatefulSets, DaemonSets, and Helm releases wh… | 98 | 2738 | active |
| huggingface/OpenEnv OpenEnv is a Hugging Face framework for creating, deploying, and consuming isolated execution environments used in agentic reinforcement le… | 85 | 2728 | active |
| go-chassis/go-chassis Go-Chassis is a cloud-native microservice framework for Go that provides a pluggable handler chain, protocol-independent service invocation… | 81 | 2726 | active |
| tj-actions/changed-files A GitHub Action that detects all added, copied, modified, deleted, renamed, and type-changed files and directories relative to a target bra… | 88 | 2723 | active |
| postgres-ai/database-lab-engine DBLab Engine is an open-source platform that provides instant, full-size thin clones and branching of PostgreSQL databases using ZFS copy-o… | 91 | 2720 | active |
| devflowinc/trieve Trieve is an all-in-one API platform for semantic vector search, typo-tolerant full-text and neural search, recommendations, RAG, and analy… | 54 | 2718 | active |
| IDEA-Research/T-Rex T-Rex is the official Python API client for T-Rex2, a generic open-set object detection model that combines text and visual prompts to dete… | 45 | 2711 | active |
| CloudPaste CloudPaste is a serverless, self-hosted file management and text/Markdown sharing service that aggregates multiple storage backends (S3-com… | 53 | 2703 | active |
| argoproj/argo-events Argo Events is an event-driven workflow automation framework for Kubernetes that triggers actions like creating Kubernetes objects, invokin… | 90 | 2699 | active |
| Submariner Submariner is a CNCF sandbox tool that interconnects the overlay networks of multiple Kubernetes clusters, enabling direct Pod-to-Pod and S… | 98 | 2697 | active |
| juju/juju Juju is Canonical's open-source orchestration engine for deploying, integrating, and managing the lifecycle of applications at any scale us… | 99 | 2680 | stable |
| Exchange API A free currency exchange rates API serving 200+ currencies, including cryptocurrencies and metals, with daily updates and no rate limits. D… | 70 | 2678 | active |
| jitpack/jitpack.io JitPack is a package repository for JVM and Android projects that builds Git projects on demand and serves ready-to-use artifacts (jar, aar… | 75 | 2669 | stable |
| vllm-project/production-stack vLLM Production Stack is a reference implementation for deploying vLLM LLM inference at scale on Kubernetes, distributed via Helm charts. I… | 88 | 2667 | active |
| Bright Data MCP A Model Context Protocol (MCP) server by Bright Data that gives AI agents and LLMs real-time access to public web data through 69 tools cov… | 86 | 2663 | active |
| Terraform Google Provider The official Terraform provider plugin for Google Cloud Platform, maintained by Google and HashiCorp. It lets Terraform provision and manag… | 96 | 2662 | active |
| NeMo Agent Toolkit NVIDIA NeMo Agent Toolkit is an open-source Python library for connecting, orchestrating, and optimizing teams of AI agents across any agen… | 85 | 2660 | active |
| Nutlope/roomGPT RoomGPT is an open-source Next.js web application that lets users upload a photo of a room and generate redesigned variations using the Con… | 31 | 10681 | maintenance |
| OpenTelemetry Java OpenTelemetry auto-instrumentation for Java, providing a Java agent JAR that attaches to any Java 8+ application and injects bytecode to ca… | 99 | 2654 | active |
| pynamodb/PynamoDB PynamoDB is a Python library providing a simple, elegant, model-based interface to Amazon's DynamoDB NoSQL database. It abstracts DynamoDB'… | 60 | 2646 | stable |
| absmach/magistrala Magistrala is an open-source, multi-tenant IoT platform framework written in Go that provides device management, messaging, identity, and a… | 97 | 2645 | active |
| AWS Controllers for Kubernetes (ACK) AWS Controllers for Kubernetes (ACK) is a collection of Kubernetes custom resource definitions and controllers that let you define and mana… | 76 | 2635 | active |
| spotify/scio Scio is a Scala API for Apache Beam and Google Cloud Dataflow, inspired by Apache Spark and Scalding. It provides a unified batch and strea… | 96 | 2629 | active |
| instantdb/instant Instant is an open-source backend platform (the 'Modern Firebase') providing a real-time relational database, auth, permissions, storage, p… | 67 | 10546 | maintenance |
| Architect Architect is an open-source framework and CLI for building Functional Web Apps (FWAs) on AWS serverless infrastructure using concise declar… | 65 | 2624 | active |
| huilang-me/CF-Server-Monitor A free multi-server monitoring probe system built on Cloudflare Workers, D1, and Durable Objects, with a real-time dashboard, offline alert… | 59 | 2619 | active |
| ueberdosis/hocuspocus Hocuspocus is a Yjs CRDT-based WebSocket backend for conflict-free real-time collaboration, written in TypeScript. It provides a server, cl… | 97 | 2611 | active |
| ymyuuu/IPDB IPDB is a hosted API service that provides curated lists of Cloudflare official and reverse-proxy (preferred) IP addresses, updated in real… | 72 | 2604 | active |
| miantiao-me/hacker-podcast An AI-powered Chinese podcast application that automatically scrapes daily Hacker News top stories, generates Chinese summaries and scripts… | 66 | 2597 | active |
| imzyb/MiSub MiSub is a lightweight, self-hosted subscription management panel for proxy nodes, deployed on Cloudflare Pages with KV or D1 storage. It c… | 64 | 2596 | active |
| Google Colaboratory The official Python libraries shipped inside Google Colaboratory, Google's free hosted Jupyter notebook environment for machine learning ed… | 77 | 2591 | active |
| rubyonjets/jets Jets is a Ruby serverless framework and deployment service that packages Rails, Sinatra, Hanami, or any Rack app and runs it on AWS Lambda.… | 51 | 2590 | active |
| Griptape Griptape is a modular Python framework for building generative AI applications, providing abstractions for agents, pipelines, workflows, RA… | 92 | 2581 | active |
| kubereboot/kured Kured (KUbernetes REboot Daemon) is a Kubernetes daemonset that safely performs automatic node reboots when the underlying OS indicates one… | 90 | 2581 | stable |
| stefanzweifel/git-auto-commit-action A GitHub Action that detects files changed during a workflow run and automatically commits and pushes them back to the repository. It is wr… | 86 | 2578 | active |
| nammayatri/nammayatri Namma Yatri is an open, direct-to-driver mobility platform (ride-hailing) built in Haskell, with zero commission for drivers and open data/… | 65 | 2571 | active |
| Altinity Kubernetes Operator for ClickHouse The Altinity Kubernetes Operator for ClickHouse is a Go-based Kubernetes operator that creates, configures, and manages ClickHouse clusters… | 97 | 2569 | active |
| Azure/azure-sdk-for-java The official Azure SDK for Java, providing client and management libraries for consuming and administering Azure services. It follows the A… | 96 | 2564 | active |
| splunk/attack_range Splunk Attack Range is a tool that builds instrumented, vulnerable lab environments in the cloud (AWS, Azure, GCP) or locally using Terrafo… | 81 | 2562 | active |
| SPIFFE SPIFFE is a framework and set of standards for issuing cryptographic identities to workloads, and SPIRE (the SPIFFE Runtime Environment) is… | 96 | 2559 | stable |
| hudy9x/namviek Namviek is an open-source, self-hosted project management application for small development teams, built with Next.js, Node.js, MongoDB, an… | 64 | 2552 | active |
| Wire Wire is an open-source, end-to-end encrypted messaging and collaboration platform whose server components are written primarily in Haskell.… | 56 | 2550 | active |
| apache/fineract Apache Fineract is an open-source, cloud-ready core banking platform written in Java, providing client management, loan and savings portfol… | 90 | 2533 | stable |
| Lamini The official Python client and SDK for Lamini's hosted API for building generative AI applications. It lets developers call Lamini's LLM in… | 34 | 2533 | active |
| Squidex/squidex Squidex is an open-source (MIT) headless CMS and content management hub built with ASP.NET Core and CQRS, exposing content and assets throu… | 95 | 2511 | active |
| mattzcarey/shippie Shippie is an extendable AI code-review agent that reads pull request diffs, explores the codebase with developer tools, and posts focused … | 91 | 2511 | active |
| pingcap/ossinsight OSSInsight is a web analytics platform that analyzes over 10 billion GitHub events to provide rankings, trends, and comparisons of open sou… | 65 | 2509 | active |
| kentcdodds/kentcdodds.com The open-source code behind Kent C. Dodds' personal website (kentcdodds.com), a blog and educational hub built with React Router v7, React,… | 77 | 2500 | active |
| google/tunix Tunix is a lightweight JAX-based library for post-training large language models, supporting supervised fine-tuning, preference optimizatio… | 81 | 2491 | active |
| Brighter Brighter is a Command Dispatcher and Command Processor framework for .NET and C# that implements the Command pattern with a middleware pipe… | 99 | 2486 | active |
| GridDB GridDB is an open-source, high-performance distributed database optimized for time-series IoT and big data workloads, offering both NoSQL a… | 60 | 2474 | active |
| TrashUwU/PokeAssistant A Discord assistant bot for the Pokétwo game that automatically identifies Pokémon from spawn images using AI, pings roles or users when le… | 10 | 2470 | active |
| Qovery Platform Qovery Engine is the Rust orchestration runtime behind Qovery's Kubernetes control plane, turning API operations into reproducible infrastr… | 75 | 2465 | active |
| parseablehq/parseable Parseable is an open source, columnar data lake observability platform built in Rust that unifies logs, metrics, traces, and events in a si… | 96 | 2460 | active |
| Amazon VPC CNI The AWS VPC CNI plugin is a Kubernetes networking plugin that assigns VPC IP addresses to pods using Elastic Network Interfaces on AWS. It … | 98 | 2457 | active |
| metarank/metarank Metarank is an open-source, low-code Learning-to-Rank service that personalizes search results, listings, and recommendations using real-ti… | 85 | 2454 | active |
| AI-Hypercomputer/maxtext MaxText is a high-performance, scalable open-source LLM training library written in pure Python/JAX, targeting Google Cloud TPUs and GPUs. … | 98 | 2446 | active |
| Shuffle Shuffle is an open source security automation, orchestration and response (SOAR) platform built for security professionals, with a visual w… | 97 | 2444 | active |
| RubyGems.org RubyGems.org is the Ruby community's central gem hosting service, a Rails application that lets developers publish, search, and install Rub… | 77 | 2439 | active |
| Supabase CLI Supabase is an open‑source Postgres development platform that provides a hosted database, authentication, auto‑generated REST and GraphQL A… | 95 | 2438 | active |
| iliane5/meridian Meridian is an open-source AI-powered news intelligence system that scrapes hundreds of RSS sources, clusters and analyzes articles with LL… | 27 | 2437 | active |
| NovaSky-AI/SkyRL SkyRL is a modular full-stack reinforcement learning library for post-training large language models, combining a training framework (skyrl… | 83 | 2436 | active |
| nz-m/SocialEcho SocialEcho is a full-featured social networking platform built on the MERN stack (MongoDB, Express.js, React.js, Node.js) with automated co… | 31 | 2433 | active |
| microsoft/chat-copilot Chat Copilot is a sample application from Microsoft for building your own LLM-powered chat copilot, built on Semantic Kernel. It consists o… | 10 | 2428 | active |
| Microsoft365DSC/Microsoft365DSC Microsoft365DSC is an open-source PowerShell Desired State Configuration (DSC) module that lets organizations automate the deployment, conf… | 96 | 2427 | active |
| MichaCo/CacheManager CacheManager is an open-source caching abstraction layer for .NET written in C#, supporting multiple cache providers such as Redis, Memcach… | 58 | 2422 | active |
| moj-analytical-services/splink Splink is a Python library for fast, scalable probabilistic record linkage and entity resolution, based on the Fellegi-Sunter model with un… | 91 | 2421 | active |
| brightbeanxyz/brightbean-studio BrightBean Studio is an open-source, self-hostable social media management platform for scheduling, publishing, and monitoring content acro… | 59 | 2420 | active |
| intentfreedomain/FreeDomain Intent FreeDomain is a non-profit service (fiscally sponsored by Hack Club) that provides free subdomains like .int.yt and .nc.to for devel… | 61 | 2417 | active |
| CodeXBotz/File-Sharing-Bot A Telegram bot built with Pyrogram that stores posts and documents in a database channel and shares them via special links. It supports for… | 46 | 2412 | active |
| vercel/chat Chat SDK is a unified TypeScript SDK for building chat bots and AI agents that run across Slack, Microsoft Teams, Google Chat, Discord, Tel… | 80 | 2410 | active |
| learnhouse/learnhouse LearnHouse is a next-generation open-source learning management system (LMS) for creating, sharing, and selling educational content. It com… | 100 | 2404 | active |
| southleft/figma-console-mcp A Model Context Protocol (MCP) server that connects AI assistants like Claude to Figma, exposing design tokens, variables, components, styl… | 78 | 2392 | active |
| community-valheim-tools/valheim-server-docker A Docker container image that runs a Valheim dedicated game server with automatic updates, world backups, and BepInEx/ValheimPlus mod suppo… | 100 | 2391 | active |
| Checkmk/checkmk Checkmk is a comprehensive IT infrastructure and application monitoring platform covering servers, networks, containers, and cloud environm… | 76 | 2391 | stable |
| Mentra-Community/MentraOS MentraOS is an open-source operating system and development platform for smart glasses, providing pairing, connection management, data stre… | 92 | 2389 | active |
| apple/axlearn AXLearn is a Python deep learning library built on JAX and XLA for developing and training large-scale models, with an object-oriented conf… | 69 | 2375 | active |
| apache/kyuubi Apache Kyuubi is a distributed, multi-tenant Thrift JDBC/ODBC gateway that provides serverless SQL access to data warehouses and lakehouses… | 90 | 2367 | stable |
| EasyRec EasyRec is a TensorFlow-based framework from Alibaba for building large-scale deep learning recommendation models covering matching, rankin… | 59 | 2361 | active |
| datopian/portaljs PortalJS is an open-source, AI-native framework for building data portals on plain Next.js + Tailwind, with Claude Code agentic skills that… | 92 | 2359 | active |
| Oinone AI-Powered Low-Code Framework Oinone Pamirs is the Java back-end of Oinone, an AI-powered low-code framework that is 100% metadata-driven and positions itself as infrast… | 61 | 2350 | active |
| Levanter WhatsApp Bot A feature-rich WhatsApp user bot built in JavaScript that supports running multiple WhatsApp sessions from one instance, with a plugin syst… | 67 | 2349 | active |
| stephengpope/no-code-architects-toolkit A self-hostable Flask-based API that consolidates common media processing tasks—video editing, captioning, audio conversion, transcription,… | 47 | 2345 | active |
| openmeterio/openmeter OpenMeter is an open-source metering and billing platform for AI, API, and DevOps products that ingests high-volume usage events, aggregate… | 94 | 2341 | active |
| kubernetes-sigs/aws-iam-authenticator A tool that lets users authenticate to Kubernetes clusters using AWS IAM credentials instead of separate certificates or tokens. It runs as… | 100 | 2337 | active |
| vearch/vearch Vearch is a cloud-native distributed vector database for efficient similarity search of embedding vectors, supporting hybrid vector and sca… | 76 | 2331 | active |
| YTsaurus YTsaurus is an open-source, fault-tolerant big data platform combining distributed storage, MapReduce processing, a SQL query engine, and a… | 95 | 2320 | active |