The Linux Foundation

Cloud Native Computing Foundation →31

The Linux Foundation’s home for Kubernetes, Prometheus, Envoy and about 230 other cloud-native projects, each at a sandbox, incubating or graduated stage.

• Agones
• Argo CD
• Chaos Mesh
• CloudNativePG
• Crossplane
• Dapr
• Envoy
• etcd
• Fluentd
• gRPC
• Harbor
• Istio
• K3s
• Karpenter
• kind
• kubeadm
• KubeRay
• Kubernetes
• KubeVirt
• LitmusChaos
• minikube
• OpenTelemetry
• OpenTofu
• Oxia
• Podman
• Pravega
• Prometheus
• Tekton
• Upjet
• Velero
• Vitess

LF AI & Data Foundation →4

The Linux Foundation’s fund for open-source AI and data projects, from ONNX, Milvus and OpenLineage to Delta Lake, Unity Catalog and Vortex, each at a sandbox, incubation or graduated stage.

• Delta Lake
• LakeSoul
• Unity Catalog
• Vortex

OpenJS Foundation →3

The Linux Foundation’s home for JavaScript projects, from Node.js, Electron and webpack to jQuery, ESLint and Jest, each at an incubating, at-large or impact stage.

• Electron
• Node.js
• webpack

LF Decentralized Trust →2

The Linux Foundation’s home for ledger, identity and cryptography projects, formed in 2024 from the Hyperledger Foundation and Trust Over IP: Fabric, Besu, Hiero and others, each in incubation or graduated.

• Besu
• Hyperledger Fabric

LF Edge →2

The Linux Foundation’s umbrella for edge computing: EdgeX Foundry, Akraino, EVE, Open Horizon and ten more projects for running software near sensors and machines, each at an At-Large, Growth or Impact stage.

• EdgeX Foundry
• eKuiper

Open Infrastructure Foundation →2

The former OpenStack Foundation, home to OpenStack, Kata Containers, StarlingX and Zuul, and a directed fund of the Linux Foundation since June 2025.

• Kata Containers
• OpenStack

Open Source Security Foundation →2

The Linux Foundation’s home for open-source security work, formed in 2020: it hosts Sigstore, SLSA, Scorecard and OpenBao, and runs working groups on supply chains, vulnerabilities and package repositories.

• OpenBao
• Sigstore

Post-Quantum Cryptography Alliance →2

The Linux Foundation’s fund for open-source post-quantum cryptography: it hosts Open Quantum Safe, the PQ Code Package, CBOMkit and Longfellow ZK, paid for by members led by AWS, Cisco, Google and IBM.

• liboqs
• mlkem-native

PyTorch Foundation →2

The Linux Foundation’s home for PyTorch and, since May 2025, five more AI projects: vLLM, DeepSpeed, Ray, Helion and Safetensors.

• Ray
• Ray Serve

React Foundation →2

The Linux Foundation home that took React, React Native and JSX over from Meta in February 2026. A members’ board runs the money and infrastructure; React’s maintainers keep technical direction.

• React
• React Native

Agentic AI Foundation →1

The Linux Foundation’s home, since December 2025, for shared agent standards and tools: the Model Context Protocol, goose, AGENTS.md, A2A and six more projects.

• Model Context Protocol (MCP)

Continuous Delivery Foundation →1

The Linux Foundation’s home for CI/CD projects: launched in 2019 around Jenkins, Jenkins X, Spinnaker and Tekton, it hosts six projects in 2026 after Tekton and Shipwright moved to the CNCF.

• Jenkins

The Ceph Foundation →1

The Linux Foundation fund that pays for Ceph’s events, test infrastructure and documentation; since 2026 the Linux Foundation also holds the Ceph trademark, while a community steering committee runs the code.

• Ceph

Cloud Foundry Foundation →1

The Linux Foundation fund behind Cloud Foundry, Paketo and the Open Service Broker API: launched in 2015 with seven Platinum members, now backed mainly by SAP and Broadcom’s VMware.

• Cloud Foundry

Confidential Computing Consortium →1

The Linux Foundation’s home for software that protects data while it is being processed, inside hardware trusted execution environments: 14 projects such as Gramine, Open Enclave SDK and Veraison, at incubation, graduation or emeritus.

• Gramine

DAOS Foundation →1

The Linux Foundation’s home for DAOS, the high-performance storage system Intel started for exascale supercomputers: member dues and a governing board on one side, a technical steering committee that now makes the releases on the other.

• DAOS

eBPF Foundation →1

The Linux Foundation’s fund for eBPF itself: member companies pay for research grants, fellowships, events and security work, and a steering committee of kernel maintainers sets direction. Since October 2025 it hosts no projects of its own.

• eBPF

FinOps Foundation →1

The Linux Foundation’s community for people who manage cloud and technology spending: it publishes the FinOps Framework, trains and certifies practitioners and vendors, and funds FOCUS, the open format for billing data.

• FOCUS

Fintech Open Source Foundation →1

The Linux Foundation’s home for open source and open standards in financial services, backed by banks and asset managers, with projects such as FDC3, the Common Domain Model, Morphir and Goldman Sachs’s Legend.

• Legend

GraphQL Foundation →1

The Linux Foundation’s fund behind GraphQL: it holds the trademark and pays for grants and GraphQLConf, while an elected steering committee runs the spec, GraphQL.js and GraphiQL.

• GraphQL

Green Software Foundation →1

A Linux Foundation standards body for measuring and cutting the energy, carbon and water footprint of software, best known for the Software Carbon Intensity (SCI) specification, now ISO/IEC 21031:2024.

• Software Carbon Intensity (SCI)

High Performance Software Foundation →1

The Linux Foundation’s home for open-source supercomputing software such as Spack, Kokkos and Open MPI, launched in May 2024 by US national laboratories, AWS, HPE and chip makers, with CNCF-style emerging, established and core stages.

• Spack

Jupyter Foundation →1

The Linux Foundation fund that pays for work on Project Jupyter. It controls money, not code: Jupyter’s own elected councils still make every technical decision.

• Jupyter

LF Networking →1

The Linux Foundation’s umbrella for open-source networking: OpenDaylight, ONAP, FD.io, Nephio, Anuket and newer projects for telecom and cloud networks, sharing one budget and a technical advisory council.

• OpenDaylight

OpenAPI Initiative →1

The Linux Foundation project that owns the OpenAPI Specification, formerly Swagger, and its companions Arazzo and Overlay: members pay for it, and a small steering committee of maintainers writes the specs.

• OpenAPI Specification

OpenSearch Software Foundation →1

The Linux Foundation fund that has held OpenSearch, the Apache 2.0 fork of Elasticsearch, since AWS handed it over in September 2024.

• OpenSearch

Presto Foundation →1

The Linux Foundation’s home for Presto, the SQL query engine built at Facebook: it owns the name and spends member dues, while a nine-seat steering committee runs the code.

• Presto (PrestoDB)

SONiC Foundation →1

The Linux Foundation’s home for SONiC, the open-source network operating system Microsoft built for Azure’s switches: members fund it, and an elected seven-seat steering committee runs the code.

• SONiC

TARS Foundation →1

A Linux Foundation sub-foundation for microservices, formed in 2020 around Tencent’s TARS framework. It is still listed as active, but has published nothing since April 2022; the code carries on in its GitHub repositories.

• TARS

TLA+ Foundation →1

The Linux Foundation’s fund behind TLA+, Leslie Lamport’s specification language: member dues pay for grants and tooling, while a Specification Language Committee decides what TLA+ is.

• TLA+

Unified Acceleration (UXL) Foundation →1

The Linux Foundation project that took over Intel’s oneAPI: an open specification and a set of C++ libraries for CPUs, GPUs and other accelerators, steered by chip and cloud companies as a vendor-neutral answer to single-vendor stacks.

• oneTBB

Hosted by the Linux Foundation itself31

ACRNDormantOpen sourceA series of LF Projects, LLC, started with code from IntelA small type-1 hypervisor for Intel-based embedded and industrial systems that runs real-time and safety VMs on dedicated cores next to Linux, Windows or Android guests on the same board.AGNTCYOpen sourceA series of LF Projects, LLC, donated by CiscoOpen infrastructure for agents from different vendors to find, verify and message each other: a schema for describing agents, a federated directory, verifiable agent identities and an encrypted messaging layer that carries A2A and MCP.AsyncAPIOpen sourceA series of LF Projects, LLCA specification, and a set of open-source tools, for describing event-driven APIs in one YAML or JSON document: the brokers an application connects to, the channels it sends to or receives from, and the messages on them.Cloud HypervisorOpen sourceA Rust virtual machine monitor for modern cloud VMs on KVM or Microsoft’s hypervisor: virtio devices only, plus hotplug, VFIO passthrough, live migration, snapshots and Windows guests.Cruise Control for KafkaOpen sourceA series of LF Projects, LLC, started at LinkedInA service that watches a Kafka cluster’s load, works out which partitions to move to balance it, and moves them: on request through a REST API, or by itself when a broker fails.DocsyOpen sourceA series of LF Projects, LLC, contributed by GoogleA free Hugo theme for technical documentation: Markdown in a Git repository becomes a docs site with sidebar navigation, search, translations, a blog and Markdown copies for AI agents. Kubernetes, etcd and OpenTelemetry use it.DocumentDBOpen sourceA series of LF Projects, LLC, donated by MicrosoftA MongoDB-compatible document database built as PostgreSQL extensions plus a gateway, so MongoDB drivers and tools talk to Postgres underneath.DPDK (Data Plane Development Kit)Open sourceA Linux Foundation project with its own governing board and technical boardC libraries and drivers for processing packets in user space at line rate: applications take NICs away from the kernel and poll them from dedicated CPU cores, with no interrupts or system calls per packet.entOpen sourceA series of LF Projects, LLC, donated by Facebook (now Meta)A Go entity framework from Facebook: describe entities and their edges as Go code, and go generate writes a fully typed client for querying and traversing them in SQL databases.FRRouting (FRR)Open sourceAn open-source IP routing suite for Linux and BSD: BGP, OSPF, IS-IS, PIM, BFD and other protocols as separate daemons that install routes into the kernel, used in switch operating systems, routers and Kubernetes clusters.JanssenOpen sourceA self-funded project chartered directly under the Linux Foundation; Gluu leads day-to-day developmentA self-hosted identity and access management server: a certified OpenID Connect provider and OAuth 2.0 authorization server with FIDO2, SCIM and a self-service portal, plus Cedarling, an embeddable policy engine built on Cedar.KernelCIOpen sourceRun as the KernelCI Foundation, a member-funded Linux Foundation projectContinuous integration for the upstream Linux kernel: it builds kernel trees in many configurations, boots and tests them on real boards in community labs, and collects results from other kernel CI systems in one public database.LuraOpen sourceA series of LF Projects, LLC, donated by KrakenDA Go framework for building stateless API gateways that fan one client request out to several backends and merge, filter and reshape their responses; the engine inside the KrakenD API Gateway.MalloyOpen sourceA series of LF Projects, LLCA modelling and query language from Looker co-founder Lloyd Tabb that compiles to SQL: define joins and measures once in a source, then write short queries, including nested ones, that run on DuckDB, BigQuery, Snowflake, PostgreSQL and other engines.MLflowOpen sourceA series of LF Projects, LLC, since June 2020An open-source platform that records training runs, keeps a registry of versioned models with aliases, packages models for serving, and, since 2024, traces and evaluates LLM apps and agents.OCSFOpen sourceA series of LF Projects, LLC, since November 2024The Open Cybersecurity Schema Framework: an open, vendor-neutral schema for security events and findings, so logs from firewalls, endpoints, identity providers and clouds arrive with the same field names and can be queried and correlated together.Open Container Initiative (OCI) specificationsOpen sourcePublished by the Open Container Initiative, an LF project run by its own Technical Oversight BoardThree vendor-neutral standards that let any build tool, registry and runtime share containers: how a runtime starts one, how an image is laid out, and the HTTP API registries use to push and pull it.Open vSwitchOpen sourceA programmable software switch for hypervisors and container hosts: it connects VMs and containers to each other and to tunnels across the physical network, and forwards packets by OpenFlow rules that a controller can change.osqueryOpen sourceMoved from Facebook in 2019; run by a Technical Steering Committee from several companiesAn agent for Linux, macOS and Windows that exposes the operating system as SQL tables, so you can query processes, users, open ports, installed software and more, interactively or on a schedule that logs what changed.OVN (Open Virtual Network)Open sourceA series of LF Projects, LLC, split out of the Open vSwitch repository in 2019A control plane for virtual networks built on Open vSwitch: you describe logical switches, routers, ACLs, NAT and load balancers, and it programs the OVS on every host to implement them.P4Open sourceMoved from the Open Networking Foundation in 2024; supported by a directed fund with its own governing boardA programming language for the data plane: it describes which headers a switch, NIC or software switch parses and which match-action tables it applies, so packet processing can be changed by recompiling instead of waiting for new chips.RethinkDBDormantOpen sourceBought from the defunct RethinkDB company by the CNCF and contributed to the Linux FoundationA clustered JSON document database whose queries can stay open as changefeeds, pushing every change to the client instead of the app polling for it.runcOpen sourcePart of the Open Container InitiativeThe reference OCI runtime: a small Linux command-line tool that turns a bundle into a running container, and the default runtime underneath containerd and Docker Engine.SPDK (Storage Performance Development Kit)Open sourceA series of LF Projects, LLC, since Intel handed it over in 2025C libraries and ready-made targets for building storage software that drives NVMe SSDs from user space, polling for completions instead of waiting on kernel interrupts.SQLMeshOpen sourceA series of LF Projects, LLC, contributed by FivetranA SQL and Python transformation framework with a Terraform-style plan and apply: it parses every model, shows what a change breaks, and promotes tested tables to production by swapping views instead of rebuilding them.StackStormOpen sourceA series of LF Projects, LLC, handed over by Extreme NetworksEvent-driven automation for operations, “IFTTT for ops”: sensors turn alerts and webhooks into triggers, rules match them, and actions or YAML workflows fix the problem, with every run audited.StarRocksOpen sourceAn open-source MPP analytical database with a vectorized engine that serves fast joins and real-time updates on its own tables, and also queries Iceberg, Hudi, Delta Lake and Hive tables in place.ValkeyOpen sourceThe Linux Foundation’s BSD-licensed fork of Redis 7.2.4: an in-memory key-value server that Redis clients can talk to unchanged.Xen Project hypervisorOpen sourceThe open-source type-1 hypervisor from Cambridge that ran the first Amazon EC2 instances: a small microkernel-style core that boots first, with drivers and management in a privileged VM called dom0.Yocto ProjectOpen sourceA Linux Foundation project that shares BitBake and OpenEmbedded-Core with the OpenEmbedded communityTools and metadata for building your own Linux distribution for an embedded device, from source: kernel, toolchain, packages, root filesystem image and SDK, reproducibly and with licence records.ZephyrOpen sourceA member-funded Linux Foundation project with its own governing board and technical steering committeeA real-time operating system for microcontrollers: the firmware on the sensor, wearable or controller at the edge of an IoT system, with its own networking, Bluetooth and MQTT client, built for more than 1,000 boards.