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 |
|---|---|---|---|
| SteamTradingSiteTracker A Steam skin trading market tracker that continuously monitors sell-to-cash (挂刀) ratios across BUFF, IGXE, C5, UUYP, and ECO platforms for … | 32 | 2319 | active |
| usertour/usertour Usertour is an open-source, self-hostable user onboarding platform for creating in-app product tours, checklists, surveys, banners, and ann… | 86 | 2315 | active |
| cloudflare/meet Cloudflare Meet (formerly Orange Meets) is a demo video-conferencing application built on Cloudflare Realtime SFU (Calls) with WebRTC. It s… | 57 | 2314 | active |
| kubeshop/botkube Botkube is a ChatOps messaging bot for monitoring and troubleshooting Kubernetes clusters, integrating with Slack, Discord, and Mattermost.… | 23 | 2314 | active |
| jenkinsci/kubernetes-plugin A Jenkins plugin that runs dynamic build agents in a Kubernetes cluster by creating a Pod for each agent and tearing it down after each bui… | 99 | 2313 | active |
| claimed-framework/claimed CLAIMED (C3) is a component compiler that turns Jupyter notebooks, Python scripts, and R scripts into portable containerized AI components.… | 82 | 2305 | active |
| twikoojs/twikoo Twikoo is a simple, safe, and free comment system designed for static websites, deployable via Tencent CloudBase, Vercel, or private server… | 100 | 2304 | active |
| squat/kilo Kilo is a multi-cloud network overlay for Kubernetes built on WireGuard, providing an encrypted layer 3 network that connects nodes across … | 74 | 2294 | active |
| jupyter/nbviewer Jupyter NBViewer is a web application that renders Jupyter Notebooks as static HTML web pages, powering the public nbviewer.org service. It… | 76 | 2285 | active |
| morethanmin/morethan-log morethan-log is a Next.js static blog template that uses Notion as a headless CMS, letting users publish posts and resume/portfolio pages w… | 50 | 2283 | active |
| OpenCollective Open Collective is an online funding platform that lets communities, open source projects, and organizations raise, manage, and spend money… | 75 | 2278 | active |
| Bank-Vaults Bank-Vaults is a CNCF Sandbox umbrella project of tools for cloud-native secret management with Hashicorp Vault. This repository provides t… | 88 | 2276 | active |
| kuberhealthy/kuberhealthy Kuberhealthy is a Kubernetes operator that runs synthetic monitoring checks as short-lived pods, defined via HealthCheck custom resources. … | 99 | 2271 | active |
| apache/gobblin Apache Gobblin is a distributed data integration framework for ingesting, replicating, organizing, and managing lifecycle of data across st… | 66 | 2270 | stable |
| Amazon SageMaker Containers & SDK The SageMaker Python SDK is an open-source Python library for training and deploying machine learning models on Amazon SageMaker. It suppor… | 94 | 2268 | active |
| supabase/supavisor Supavisor is a cloud-native, multi-tenant Postgres connection pooler built in Elixir/Erlang. It proxies millions of client connections into… | 96 | 2266 | active |
| tianma-if/edgeever EdgeEver is an open-source, self-hosted Evernote alternative note-taking application with a classic three-pane layout, rich text/Markdown e… | 77 | 2264 | active |
| envoyproxy/ai-gateway Envoy AI Gateway is an open-source, Kubernetes-native gateway built on Envoy Gateway that manages traffic from application clients to Gener… | 86 | 2261 | stable |
| sun-guannan/VectCutAPI VectCutAPI is a Python library and cloud API ('toAgent' video editing tool) that lets AI agents programmatically edit video, audio, images,… | 64 | 2260 | active |
| oqtane/oqtane.framework Oqtane is an open-source CMS and modular application framework for building modern .NET applications using Blazor, supporting Server, WebAs… | 96 | 2258 | active |
| linode/apl-core App Platform for LKE is a pre-built, self-hosted Kubernetes developer platform that bundles an integrated CNCF open-source stack with a sel… | 95 | 2257 | active |
| grafana/grafana-zabbix A Grafana plugin that adds a Zabbix data source and application, letting Grafana query Zabbix metrics, problems, triggers, and IT services.… | 99 | 2253 | active |
| Up Up is a command-line tool that deploys serverless applications, APIs, and static sites to AWS Lambda and API Gateway in seconds, supporting… | 23 | 8792 | maintenance |
| kubeflow/trainer Kubeflow Trainer is a Kubernetes-native platform for distributed AI model training and LLM fine-tuning across frameworks like PyTorch, JAX,… | 92 | 2249 | active |
| App Metrics App Metrics is an open-source, cross-platform .NET library for recording and reporting application metrics such as gauges, counters, meters… | 34 | 2248 | active |
| postgis/postgis PostGIS is a spatial extension for PostgreSQL that adds storage, indexing, and querying of geospatial vector and raster data. It provides h… | 77 | 2247 | stable |
| PragmaticFlow/NBomber NBomber is a distributed load-testing framework for .NET that lets you write load test scenarios in plain C# or F# with no dependency on pr… | 88 | 2241 | active |
| Raster Vision Raster Vision is an open source Python library and low-code framework for building computer vision models on satellite, aerial, and other l… | 57 | 2241 | active |
| livecycle/preevy Preevy is an open-source CLI tool that provisions, manages, and exposes ephemeral preview environments for Docker Compose applications in t… | 55 | 2234 | active |
| Karpenter Karpenter is a Kubernetes node autoscaler that watches for unschedulable pods, provisions right-sized nodes to meet their scheduling constr… | 95 | 2233 | active |
| AutomatedLab/AutomatedLab AutomatedLab is a PowerShell framework for provisioning complex test and lab environments on Hyper-V or Azure using simple declarative scri… | 80 | 2228 | active |
| Netflix/EVCache EVCache is a distributed in-memory key-value caching library built on memcached and spymemcached, designed primarily for AWS EC2 cloud infr… | 93 | 2224 | stable |
| hystax/optscale OptScale is an open-source FinOps and cloud cost optimization platform that provides visibility into infrastructure spend across AWS, Azure… | 99 | 2219 | active |
| Apache Fluss Apache Fluss is a lakehouse-native streaming storage built for real-time analytics and AI, serving as the real-time data layer for Lakehous… | 80 | 2216 | active |
| rcortx/kiwiq KiwiQ is a production-grade multi-agent orchestration platform in Python that lets you define AI workflows as JSON/Python graph schemas com… | 46 | 2211 | active |
| langchain-ai/executive-ai-assistant Executive AI Assistant (EAIA) is an open-source AI agent built with LangGraph that performs the job of an executive assistant, primarily by… | 10 | 2207 | active |
| sequinstream/sequin Sequin is an open-source change data capture (CDC) platform for Postgres, deployed as a standalone Docker container that streams database c… | 57 | 2206 | active |
| beelzebub-labs/beelzebub Beelzebub is an open-source deception runtime framework written in Go that deploys adaptive, LLM-powered honeypot decoy services across SSH… | 97 | 2192 | active |
| AlphaGenome A Python SDK providing programmatic access to Google DeepMind's AlphaGenome model, which predicts genomic regulatory outputs such as gene e… | 89 | 2192 | active |
| TensorFlow Extended (TFX) TensorFlow Extended (TFX) is an end-to-end, Google-production-scale platform for building and deploying production machine learning pipelin… | 87 | 2191 | stable |
| Jazee6/cloudflare-ai-web A self-hosted web application for chatting with multiple AI models via Cloudflare Workers AI and AI Gateway (including Gemini). Built with … | 94 | 2188 | active |
| Travis CI Travis CI is a hosted continuous integration and deployment platform for GitHub projects, configured via a simple .travis.yml file supporti… | 32 | 8486 | maintenance |
| Ainz-devs/OVL-MD-V2 OVL-MD-V2 is a multi-device WhatsApp bot built in JavaScript on top of the Baileys Web API. It ships with a broad feature set, a plugin sys… | 62 | 2184 | active |
| Capsule Capsule is a Kubernetes Operator that turns a single cluster into a shared multi-tenant platform by grouping namespaces into Tenant abstrac… | 96 | 2179 | active |
| Particular/NServiceBus NServiceBus is a .NET messaging framework for building distributed systems and async microservices, providing abstractions over message que… | 96 | 2171 | stable |
| Corteza Corteza is a 100% open-source, self-hosted low-code development platform for building CRM, business process, and structured data applicatio… | 92 | 2171 | active |
| intel/intel-extension-for-transformers Intel's toolkit for accelerating transformer-based GenAI/LLM workloads on Intel platforms, offering state-of-the-art compression (e.g., INT… | 10 | 2169 | active |
| coding-kitties/investing-algorithm-framework A Python framework for developing, backtesting, and deploying quantitative trading algorithms and trading bots. It supports vector and even… | 87 | 2165 | active |
| Motor Admin Motor Admin is a self-hostable, no-code admin panel and business intelligence tool that connects directly to your database to generate a CR… | 23 | 2165 | active |
| PrimeIntellect-ai/prime-rl prime-rl is a Python framework for large-scale, fully asynchronous reinforcement learning training of language models, built on FSDP2 for t… | 88 | 2164 | active |
| benvinegar/counterscale Counterscale is a self-hosted, privacy-friendly web analytics tracker and dashboard built on Cloudflare Workers and Workers Analytics Engin… | 78 | 2155 | active |
| Azure/AKS Azure Kubernetes Service (AKS) is Microsoft's managed Kubernetes offering on Azure. This repository serves as the public issue tracker and … | 99 | 2143 | active |
| Kludex/mangum Mangum is a Python adapter that runs ASGI applications (FastAPI, Starlette, Quart, Django, etc.) inside AWS Lambda. It translates API Gatew… | 88 | 2142 | active |
| anthropics/anthropic-sdk-typescript The official TypeScript/JavaScript SDK for accessing Anthropic's Claude language model APIs from server-side applications. It provides a ty… | 93 | 2132 | active |
| feldera/feldera Feldera is an incremental computation engine written in Rust that evaluates arbitrary SQL programs incrementally using DBSP theory, maintai… | 94 | 2131 | active |
| OpenVidu OpenVidu is a self-hosted, open-source video conferencing platform and WebRTC SDK suite, built as a LiveKit fork with mediasoup as its SFU … | 88 | 2131 | active |
| okd-project/okd OKD is the community distribution of Kubernetes that powers Red Hat OpenShift, adding developer and operations tooling, a web console, moni… | 92 | 2127 | active |
| authorizerdev/authorizer Authorizer is an open-source, self-hosted authentication and authorization server written in Go, providing OAuth2/OIDC, SAML SSO, MFA, soci… | 97 | 2107 | active |
| artifacthub/hub Artifact Hub is a web-based application for finding, installing, and publishing Cloud Native packages such as Helm charts, OLM operators, F… | 82 | 2103 | active |
| agentset-ai/agentset Agentset is an open-source RAG-as-a-service platform that handles document ingestion, chunking, embeddings, retrieval, and agentic search w… | 64 | 2103 | active |
| Foundatio Foundatio is a C# library of pluggable abstractions for building loosely coupled distributed applications, covering caching, queues, messag… | 93 | 2102 | active |
| authgear/authgear-server Authgear is an open-source customer identity and access management (CIAM) platform serving as a self-hostable alternative to Auth0, Clerk, … | 98 | 2098 | active |
| dotnetcore/EasyCaching EasyCaching is a .NET caching library that unifies basic and advanced caching usage behind a common abstraction. It supports multiple backe… | 24 | 2095 | active |
| miantiao-me/BroadcastChannel BroadcastChannel is an Astro-based application that turns a Telegram channel into a SEO-friendly microblog website with zero client-side Ja… | 85 | 2092 | active |
| prometheus-community/elasticsearch_exporter A Prometheus exporter written in Go that exposes Elasticsearch and OpenSearch cluster, node, and index metrics for scraping. It ships as bi… | 84 | 2091 | active |
| apache/polaris Apache Polaris is an open-source, fully-featured catalog for Apache Iceberg tables that implements the Iceberg REST catalog API. It provide… | 86 | 2082 | active |
| BOSH Cloud Foundry BOSH is an open-source tool chain for release engineering, deployment, and lifecycle management of large-scale distributed se… | 98 | 2079 | active |
| someengineering/fixinventory Fix Inventory is an open-source cloud asset inventory and security tool that collects metadata from cloud providers (AWS, GCP, Azure, Digit… | 52 | 2078 | active |
| NVIDIA-NeMo/RL NeMo RL is NVIDIA's open-source post-training library for scaling reinforcement learning methods (GRPO, PPO, DPO, SFT, distillation) on LLM… | 79 | 2077 | active |
| groundcover-com/caretta Caretta is a lightweight standalone tool that uses eBPF to map all service network interactions in a Kubernetes cluster and visualizes them… | 34 | 2069 | active |
| Microcks Microcks is an open source, cloud native platform for API mocking and testing that turns OpenAPI, AsyncAPI, gRPC, GraphQL, Postman and Soap… | 96 | 2067 | active |
| zarr-developers/zarr-python Zarr is a Python library implementing the Zarr storage format for chunked, compressed, N-dimensional arrays with NumPy-compatible dtypes. I… | 97 | 2064 | stable |
| superglue-ai/superglue superglue is an open-source, self-hostable agentic integration platform that builds production-grade API integrations, data migrations, and… | 62 | 2064 | active |
| microsoft/azure-devops-mcp An MCP (Model Context Protocol) server from Microsoft that exposes Azure DevOps capabilities—projects, repos, builds, work items, test plan… | 85 | 2061 | active |
| Kubefirst Kubefirst is a CLI that provisions instant GitOps-based Kubernetes platforms, integrating tools like Argo CD, Atlantis, Vault, and external… | 69 | 2061 | active |
| gocrane/crane Crane is a FinOps platform for cloud resource analytics and cost optimization in Kubernetes clusters. It provides cost insight, optimizatio… | 23 | 2060 | active |
| matrixorigin/matrixone MatrixOne is a cloud-native, distributed HTAP SQL database written in Go that is MySQL-compatible and includes built-in vector search and f… | 96 | 2057 | active |
| ine-labs/AWSGoat AWSGoat is a deliberately vulnerable AWS infrastructure deployed via Terraform, featuring OWASP Top 10 web vulnerabilities and cloud miscon… | 39 | 2055 | active |
| kwhitley/itty-router Itty Router is an ultra-tiny (~450B-1kB) TypeScript HTTP router library designed for serverless and edge environments like Cloudflare Worke… | 83 | 2050 | active |
| Kamaji Kamaji is a Kubernetes operator that manages hosted Kubernetes control planes, running control plane components as pods inside a management… | 94 | 2046 | active |
| upstash/ratelimit-js A TypeScript rate limiting library backed by Upstash Redis that works over HTTP, making it suitable for serverless and edge runtimes. It pr… | 93 | 2046 | stable |
| nottelabs/notte Notte is a full-stack framework and cloud platform for building, deploying, and scaling AI web agents and browser automations. It combines … | 85 | 2040 | active |
| jkroepke/helm-secrets helm-secrets is a Helm plugin that transparently encrypts and decrypts Helm value files using sops, allowing secrets to be safely stored in… | 99 | 2033 | active |
| jamsocket/plane Plane is a distributed system for running stateful WebSocket backends at scale, acting like a distributed hashmap of running processes keye… | 54 | 2028 | active |
| Azure Functions Azure Functions is Microsoft's serverless, event-driven compute platform, and this repo contains the open-source runtime host that executes… | 94 | 2023 | active |
| memochou1993/gpt-ai-assistant GPT AI Assistant is an application that connects the OpenAI API with the LINE Messaging API, letting users chat with their own AI assistant… | 58 | 7742 | maintenance |
| tazjin/nixery Nixery is a Docker-compatible container registry that transparently builds container images on demand using the Nix package manager. Packag… | 63 | 2019 | active |
| supermemoryai/markdowner Markdowner is a fast web service that converts any website into LLM-ready markdown, with optional LLM filtering, detailed responses, and au… | 25 | 2019 | active |
| vercel/nextjs-subscription-payments A Next.js SaaS subscription starter template integrating Supabase authentication and database with Stripe Checkout, customer portal, and we… | 10 | 7721 | maintenance |
| Nitric Nitric is a multi-language framework for building cloud backends with infrastructure declared inline in application code. It provisions res… | 95 | 2016 | active |
| GoogleCloudPlatform/PerfKitBenchmarker PerfKit Benchmarker is a Python tool that automates running a canonical set of benchmarks across cloud providers like GCP, AWS, and Azure. … | 68 | 2014 | active |
| johnkorzhuk/grabient Grabient is a web application for generating CSS gradients and discovering color palettes, built as a Cloudflare Worker with Hono and Solid… | 77 | 2013 | active |
| OpenYurt OpenYurt is a CNCF incubating open-source platform that extends upstream Kubernetes to edge computing environments without modifying the Ku… | 91 | 2004 | stable |
| openclaw/clawsweeper ClawSweeper is a conservative GitHub maintenance bot that reviews open issues and pull requests on a schedule, writes durable markdown repo… | 76 | 2004 | active |
| broadinstitute/gatk GATK (Genome Analysis Toolkit) is the Broad Institute's industry-standard toolkit for analyzing high-throughput DNA and RNA sequencing data… | 84 | 2003 | active |
| dynamodb-toolbox/dynamodb-toolbox DynamoDB-Toolbox is a lightweight, type-safe query builder and abstraction layer over the AWS DynamoDB Document Client for TypeScript. It p… | 93 | 2002 | active |
| Pravega Pravega is an open-source distributed storage service that implements Streams as a first-class primitive: durable, elastic, append-only, un… | 23 | 2000 | active |
| Tencent/cloudbase-framework CloudBase Framework is Tencent Cloud's official fullstack deployment tool that deploys frontend and backend applications to a Serverless ar… | 10 | 1998 | active |
| anomalyco/ion SST (formerly under anomalyco/ion) is a framework for building full-stack apps on your own cloud infrastructure, with a CLI and infrastruct… | 10 | 1992 | active |
| Hyperopt Hyperopt is a Python library for distributed asynchronous hyperparameter optimization over search spaces with real-valued, discrete, and co… | 84 | 7595 | maintenance |