998 projects
Kubernetes
Kubernetes (K8s) is an open-source system for automating deployment, scaling, and management of containerized applications.
Contributors
116,706
Organizations
22,095
Software value
$5.8B
Node.js
Node.js® is a JavaScript runtime built on Chrome's V8 JavaScript engine.
Contributors
51,216
Organizations
9,787
Software value
$3.8B
The Linux Kernel
The Linux Kernel Organization is a California Public Benefit Corporation established in 2002 to distribute the Linux kernel and other Open Source software to the public without charge. We are recognized by the IRS as a 501(c)3 private operating foundation.
Contributors
43,021
Organizations
4,964
Software value
$1.4B
PyTorch
PyTorch is an open source machine learning framework that accelerates the path from research prototyping to production deployment.
Contributors
41,166
Organizations
5,597
Software value
$125M
LF Edge
LF Edge is an umbrella organization that aims to establish an open, interoperable framework for edge computing independent of hardware, silicon, cloud, or operating system. By bringing together industry leaders, LF Edge will create a common framework for hardware and software standards and best practices critical to sustaining current and future generations of IoT and edge devices.
Contributors
38,286
Organizations
4,884
Software value
$2.8M
Helm
Helm helps you manage Kubernetes applications — Helm Charts help you define, install, and upgrade even the most complex Kubernetes application.
Contributors
27,213
Organizations
5,415
Software value
$22M
OpenTelemetry
OpenTelemetry makes robust, portable telemetry a built-in feature of cloud-native software. OpenTelemetry provides a single set of APIs, libraries, agents, and collector services to capture distributed traces and metrics from your application. You can analyze them using Prometheus, Jaeger, and other observability tools.
Contributors
25,546
Organizations
5,321
Software value
$300M
Argo
Argo CD is a declarative, GitOps continuous delivery tool for Kubernetes.
Contributors
23,229
Organizations
5,436
Software value
$117M
vLLM
The mission of the Project is to develop an open-source library for fast LLM inference and serving.
Contributors
23,228
Organizations
2,457
Software value
$79M
gRPC
gRPC is a modern open source high performance RPC framework that can run in any environment. It can efficiently connect services in and across data centers with pluggable support for load balancing, tracing, health checking and authentication. It is also applicable in last mile of distributed computing to connect devices, mobile applications and browsers to backend services.
Contributors
21,878
Organizations
5,658
Software value
$151M
Prometheus
Prometheus is an open-source systems monitoring and alerting toolkit originally built at SoundCloud. Since its inception in 2012, many companies and organizations have adopted Prometheus, and the project has a very active developer and user community. It is now a standalone open source project and maintained independently of any company.
Contributors
20,800
Organizations
5,283
Software value
$38M
OpenStack
OpenStack is a cloud operating system that controls large pools of compute, storage, and networking resources throughout a datacenter, all managed and provisioned through APIs with common authentication mechanisms.
Contributors
19,432
Organizations
2,329
Software value
$506M
Keycloak
Keycloak is an open source Identity and access management solution aimed at modern applications and services. It makes it easy to secure applications and services with little to no code. Keycloak is based on standard protocols with an aim toward modern use cases and the flexibility to integrate with other solutions and prevent vendor lock in. Supported protocols include: OAuth2, OpenID Connect, User Managed Access 2.0 (UMA) and SAML 2.0.
Contributors
16,995
Organizations
2,664
Software value
$3.5B
Jest
Jest is a comprehensive JavaScript testing framework focused on simplicity and developer experience. It provides a complete testing solution with built-in assertion libraries, mocking capabilities, snapshot testing, and code coverage reporting. The framework is designed to work with most JavaScript projects, including React applications, with minimal configuration required.
Contributors
16,340
Organizations
4,708
Software value
$5.8M
Jupyter
This project is a project repository for Jupyter within Project Jupyter.
Contributors
16,102
Organizations
2,526
Software value
$184M
Webpack
Webpack is a static module bundler for modern JavaScript applications. It processes web applications by recursively building a dependency graph that includes every module an application needs, then packages all those modules into one or more bundles that can be served to the web browser.
Contributors
15,901
Organizations
4,468
Software value
$9.8M
Zephyr Project
The Zephyr Project is a scalable real-time operating system (RTOS) supporting multiple hardware architectures, optimized for resource constrained devices, and built with safety and security in mind.
Contributors
15,879
Organizations
1,863
Software value
$154M
OpenSearch
The purpose of the OpenSearch Software Foundation is to raise, budget and spend funds in support of various open source, open data and/or open standards projects relating to open source search and analysis solutions.
Contributors
14,778
Organizations
1,900
Software value
$581M
Fluentd
Fluentd is an open source data collector for unified logging layer. Fluentd allows you to unify data collection and consumption for a better use and understanding of data.
Contributors
13,572
Organizations
2,947
Software value
$168M
Istio
Istio extends Kubernetes to establish a programmable, application-aware network using the powerful Envoy service proxy. Working with both Kubernetes and traditional workloads, Istio brings standard, universal traffic management, telemetry, and security to complex deployments.
Contributors
13,501
Organizations
2,885
Software value
$428M
GraphQL Foundation
GraphQL is a query language for APIs and a runtime for fulfilling those queries with your existing data. GraphQL provides a complete and understandable description of the data in your API, gives clients the power to ask for exactly what they need and nothing more, makes it easier to evolve APIs over time, and enables powerful developer tools.
Contributors
12,694
Organizations
2,953
Software value
$16M
Cloud Native Computing Foundation (CNCF)
The Cloud Native Computing Foundation (CNCF) hosts critical components of the global technology infrastructure. CNCF brings together the world’s top developers, end users, and vendors and runs the largest open source developer conferences.
Contributors
12,560
Organizations
3,503
Software value
$3.5B
Express
Express is a minimal and flexible Node.js web application framework that provides a robust set of features for web and mobile applications.
Contributors
12,282
Organizations
2,915
Software value
$4M
Podman Container Management Tool
Podman: A tool for managing OCI containers and pods.
Contributors
11,562
Organizations
3,009
Software value
$149M
Model Context Protocol (MCP)
An open protocol that enables seamless integration between LLM applications and external data sources and tools.
Contributors
11,343
Organizations
2,302
Software value
$20M
Kubeflow
Kubeflow is an open source machine learning platform built on Kubernetes that makes deploying and managing ML workflows on Kubernetes simple, portable and scalable. It provides end-to-end orchestration of machine learning pipelines, model training, serving, and experiment tracking.
Contributors
10,567
Organizations
2,288
Software value
$433M
PX4
PX4 is used in a wide range of use-cases, from consumer drones to industrial applications. It is also the leading research platform for drones and has been successfully applied to under water vehicles and boats.
Contributors
9,923
Organizations
994
Software value
$622M
Envoy
ENVOY IS AN OPEN SOURCE EDGE AND SERVICE PROXY, DESIGNED FOR CLOUD-NATIVE APPLICATIONS.
Contributors
9,906
Organizations
2,187
Software value
$3.8B
Harbor
Harbor is an open source container image registry that secures images with role-based access control, scans images for vulnerabilities, and signs images as trusted.
Contributors
9,186
Organizations
2,129
Software value
$41M
Ray
Ray is an open-source unified framework for scaling AI and Python applications. It provides a simple, universal API for building distributed applications and includes libraries for machine learning, serving, streaming, and more. Ray enables developers to parallelize single-machine code with minimal code changes and scale applications from a laptop to a cluster.
Contributors
8,891
Organizations
1,494
Software value
$51M
Jupyter Frontends
Jupyter Frontends is a sub-project of Project Jupyter.
Contributors
8,771
Organizations
1,511
Software value
$107M
Servo Project
The mission of the Project is to provide an independent, modular, embeddable web engine, which allows developers to deliver content and applications using web standards. NOTE: Servo Project was originally set up as a Series LLC (and under the Servo Project Fund). Both of those were archived on June 15, 2023 and Servo Project was transitioned to being a LF Europe Project with technical charter set at https://github.com/servo/project/blob/main/governance/CHARTER.md.
Contributors
8,426
Organizations
1,782
Software value
$1.4B
ONNX
ONNX is an open format built to represent machine learning models. ONNX defines a common set of operators - the building blocks of machine learning and deep learning models - and a common file format to enable AI developers to use models with a variety of frameworks, tools, runtimes, and compilers.
Contributors
8,039
Organizations
998
Software value
$51M
Backstage
Backstage is an open platform for building developer portals that helps organizations streamline software development by centralizing technical documentation, APIs, services, and tools into a unified interface. It provides a microservices architecture, plugin system, and tools for service catalogs, documentation, and infrastructure management.
Contributors
7,964
Organizations
2,251
Software value
$125M
Ceph
The power of Ceph can transform your organization’s IT infrastructure and your ability to manage vast amounts of data. If your organization runs applications with different storage interface needs, Ceph is for you! Ceph’s foundation is the Reliable Autonomic Distributed Object Store (RADOS), which provides your applications with object, block, and file system storage in a single unified storage cluster—making Ceph flexible, highly reliable and easy for you to manage.
Contributors
7,832
Organizations
1,518
Software value
$309M
cert-manager
cert-manager is a Kubernetes add-on to automate the management and issuance of TLS certificates from various issuing sources.
Contributors
7,784
Organizations
2,730
Software value
$32M
Cilium
Cilium is an open source software for providing, securing and observing network connectivity between container workloads - cloud native, and fueled by the revolutionary Kernel technology eBPF.
Contributors
7,662
Organizations
2,143
Software value
$1.1B
Etcd
A distributed, reliable key-value store for the most critical data of a distributed system.
Contributors
7,606
Organizations
1,825
Software value
$69M
MLflow
MLflow is an open source platform to manage the ML lifecycle, including experimentation, reproducibility, deployment, and a central model registry.
Contributors
7,580
Organizations
1,233
Software value
$51M
NATS
NATS.io is a simple, secure and high performance open source messaging system for cloud native applications, IoT messaging, and microservices architectures.
Contributors
7,571
Organizations
1,774
Software value
$84M
Fastify
Fastify is a web framework highly focused on providing the best developer experience with the least overhead and a powerful plugin architecture.
Contributors
7,539
Organizations
1,741
Software value
$11M
JupyterHub
JupyterHub is a subproject of JupyterHub and Binder, which is a sub-project of Project Jupyter.
Contributors
7,168
Organizations
1,513
Software value
$19M
Flux
Flux is a tool that automatically ensures that the state of your Kubernetes cluster matches the configuration you’ve supplied in Git. It uses an operator in the cluster to trigger deployments inside Kubernetes, which means that you don’t need a separate continuous delivery tool.
Contributors
7,057
Organizations
2,156
Software value
$19M
Moment
A JavaScript library for parsing, validating, manipulating, and formatting dates and times
Contributors
6,801
Organizations
1,871
Software value
$11M
k3s
K3s is a highly available, certified Kubernetes distribution designed for production workloads in unattended, resource-constrained, remote locations or inside IoT appliances.
Contributors
6,425
Organizations
1,980
Software value
$14M
OpenTofu
The mission of the Project is to develop and preserve open source infrastructure as code
Contributors
6,093
Organizations
1,466
Software value
$314M
jQuery
jQuery is a fast, small, and feature-rich JavaScript library. It makes things like HTML document traversal and manipulation, event handling, animation, and Ajax much simpler with an easy-to-use API that works across a multitude of browsers.
Contributors
6,028
Organizations
1,944
Software value
$197M
App Runtime Interfaces WG
App Runtime Interfaces WG provides APIs for the CF App Runtime and community clients for end users.
Contributors
5,989
Organizations
769
Software value
$566M
Containerd
An industry-standard container runtime with an emphasis on simplicity, robustness and portability
Contributors
5,906
Organizations
1,667
Software value
$104M
Spack
The mission of the Project is to: i. Develop and support a package manager for diverse computing environments that simplifies development, integration, and deployment of all types of high performance software; ii. Build a generalized, flexible software model to easily support new packages, toolchains, languages, and platforms; iii. Maintain a comprehensive, secure software distribution, including source recipes; and iv. Eliminate barriers to adoption and promote contribution to Spack and its software ecosystem
Contributors
5,895
Organizations
1,019
Software value
$220M
Spinnaker
Spinnaker is an open source, multi-cloud continuous delivery platform for releasing software changes with high velocity and confidence.
Contributors
5,626
Organizations
948
Software value
$118M
Jaeger
Monitor and troubleshoot transactions in complex distributed systems. As on-the-ground microservice practitioners are quickly realizing, the majority of operational problems that arise when moving to a distributed architecture are ultimately grounded in two areas: networking and observability.
Contributors
5,615
Organizations
1,444
Software value
$42M
DeepSpeed
The mission of the Project is to develop a deep learning optimization library that makes distributed training and inference easy, efficient, and effective.
Contributors
5,454
Organizations
287
Software value
$21M
The Presto Foundation Fund
Presto is an open source distributed SQL query engine for running interactive analytic queries against data sources of all sizes ranging from gigabytes to petabytes. Presto was designed and written from the ground up for interactive analytics and approaches the speed of commercial data warehouses while scaling to the size of organizations like Facebook.
Contributors
5,409
Organizations
744
Software value
$2.1B
Yocto Project
The Yocto Project (YP) is an open source collaboration project that helps developers create custom Linux-based systems regardless of the hardware architecture.
Contributors
5,356
Organizations
1,810
Software value
$16M
Academy Software Foundation (ASWF)
The mission of the Academy Software Foundation (ASWF) is to increase the quality and quantity of contributions to the content creation industry’s open source software base; to provide a neutral forum to coordinate cross-project efforts; to provide a common build and test infrastructure; and to provide individuals and organizations a clear path to participation in advancing our open source ecosystem.
Contributors
5,246
Organizations
906
Software value
$23M
SONiC Foundation
SONiC is an open source network operating system based on Linux that runs on switches from multiple vendors and ASICs. SONiC offers a full-suite of network functionality, like BGP and RDMA, that has been production-hardened in the data centers of some of the largest cloud-service providers.
Contributors
5,213
Organizations
706
Software value
$595M
Lodash
A modern JavaScript utility library delivering modularity, performance, and extras through consistent, well-documented functions for common programming tasks like data manipulation, function composition, and type checking
Contributors
5,090
Organizations
1,670
Software value
$3.7M
Milvus
As an open source vector similarity search engine, Milvus is easy-to-use, highly reliable, scalable, robust, and blazing fast. Adopted by over 100 organizations and institutions worldwide, Milvus empowers applications in a variety of fields, including image processing, computer vision, natural language processing, voice recognition, recommender systems, drug discovery, etc.
Contributors
5,023
Organizations
455
Software value
$48M
Thanos
Open source, highly available Prometheus setup with long term storage capabilities.
Contributors
4,951
Organizations
1,385
Software value
$22M