Links
AddGenerate clients, servers, and documentation from OpenAPI 2.0/3.x documents.
OpenAPI Generator allows generation of API client libraries (SDK generation), server stubs, documentation and configuration automatically given an OpenAPI Spec (v2, v3).
Convert OpenAPI 3.0/3.1 schemas to TypeScript types and create type-safe fetching.
openapi-typescript turns OpenAPI 3.0 & 3.1 schemas into TypeScript quickly using Node.js. No Java/node-gyp/running OpenAPI servers necessary.
Secure, Open-source Email Archiving for Data Sovereignty. Your Secure, Sovereign Email Archive.
Open Archiver is a self-hosted, open-source platform for archiving, searching, and managing your emails. Take control of your digital communication history, free from vendor lock-in.
▦ Universal, standards-based auth provider.
OpenAuth is a standards-based auth provider for web apps, mobile apps, single pages apps, APIs, or 3rd party clients.
OpenBao exists to provide a software solution to manage, store, and distribute sensitive data including secrets, certificates, and keys.
Related contents:
- OpenBao (Hashicorp Vault Fork effort) FAQ @ LF Edge.
- Open source forkers stick an OpenBao in the oven @ The Register.
- Vault on Kubernetes using OpenBao @ nanibot.net.
- Vault SSH : accès sécurisé aux serveurs @ DevSecOps :fr:.
- Monitor HCP Vault Dedicated Audit Logs with SigNoz @ SigNoz.
- Running OpenBao on Kubernetes with a CloudNativePG PostgreSQL backend @ CNCF.
Financial data platform for analysts, quants and AI agents. The AI Workspace for Finance.
Bridge your data with AI. Build AI-powered analytics applications, faster, securely and on your terms.
OpenBullet is a webtesting suite that allows to perform requests towards a target webapp and offers a lot of tools to work with the results. This software can be used for scraping and parsing data, automated pentesting, unit testing through selenium and much more.
Opensource CAL 3D printer with configuration flexibility based on commercially available optical components and 3D printed components. Intended for research purposes.
Computed axial lithography, or CAL, looks different from other forms of 3D printing. A vial of resin rotates while a sequence of carefully computed images are projected through the volume. Where enough light accumulates, a part forms, all at once, in just minutes. There are no layers and no support structures. Invented by Berkeley in 2017, the process has developed a lot over the decade.
Related contents:
Modular and decentralised honeypot.
OpenCanary is a daemon that runs canary services, which trigger alerts when (ab) is used. The alerts can be sent to a variety of sources, including Syslog, emails, and a companion daemon opencanary-correlator.
Agentic Development Environment for AI Coding. Desktop and web interface for OpenCode AI agent.
OpenChamber is an open-source workspace for running, supervising, and reviewing AI coding work across desktop, browser, editor, and mobile.
OpenChamber gives you one place to direct agent work, understand the changes, and move them toward release. Your projects stay available when you switch devices or step away.
Markdown to a beautiful Changelog Site.
Transform your Markdown files into stunning changelog sites effortlessly with OpenChangelog. Host, customize, and share product updates seamlessly. Free, open-source, and fully integrated with GitHub.
OpenChoreo is an open-source internal developer platform (IDP)
OpenChoreo is a complete, open-source Internal Developer Platform (IDP) designed for platform engineering (PE) teams who want to streamline developer workflows and deliver Internal Developer Portals without having to build everything from scratch. OpenChoreo orchestrates many CNCF and other projects to give a comprehensive framework for PE teams to build the platform they want.
Related contents:
OpenCiv3 is an open-source, cross-platform, mod-oriented, modernized remake of Civilization III by the fan community built with the Godot Engine and C#, with capabilities inspired by the best of the 4X genre and lessons learned from modding Civ3.
Related contents:
OpenClarity is an open source platform to enhance security and observability of cloud native applications and infrastructure.
OpenClarity is an open source tool for agentless detection and management of Virtual Machine Software Bill Of Materials (SBOM) and security threats such as vulnerabilities, exploits, malware, rootkits, misconfigurations and leaked secrets.
Related contents:
runs anywhere. uses anything. open-source coding agent CLI for any model
not a chatbot wrapper or another ide plugin. an open coding agent that runs in your terminal, talks to any model, and keeps every change reviewable.
Personal AI Assistant. The AI that actually does things. Your own personal AI assistant. Any OS. Any Platform. The lobster way. 🦞
Clears your inbox, sends emails, manages your calendar, checks you in for flights. All from WhatsApp, Telegram, or any chat app you already use.
Clawdbot is a personal AI assistant you run on your own devices. It answers you on the channels you already use (WhatsApp, Telegram, Slack, Discord, Google Chat, Signal, iMessage, Microsoft Teams, WebChat), plus extension channels like BlueBubbles, Matrix, Zalo, and Zalo Personal. It can speak and listen on macOS/iOS/Android, and can render a live Canvas you OpenClaw Minimum Viable Agent Cheatsheet control. The Gateway is just the control plane — the product is the assistant.
Related contents:
- OpenClaw Security Engineer's Cheat Sheet @ Semgrep.
- Awesome OpenClaw Use Cases @ GitHub.
- « Un désastre se profile à l’horizon » : pourquoi le phénomène Clawdbot inquiète autant qu’il fascine ? @ Numerama :fr:.
- Clawdbot sheds skin to become Moltbot, can't slough off security issues @ The Register.
- clawdbot (moltbot? openmolt?) is a security nightmare @ Low Level's YouTube.
- Episode 652: Have Your Bot Call My Bot @ Linux Unplugged.
- Clawdbot (Moltbot) Has 100K Stars. It Has Zero AI @ Jake Van Clief's YouTube.
- Unless That Claw Is The Famous OpenClaw @ Don't Worry About the Vase.
- OpenClaw is What Apple Intelligence Should Have Been @ Jake Quist.
- Saga OpenClaw (ClawdBot, Moltbot) : enjeux techniques, juridiques et éthiques d’un assistant IA open source @ LinuxFr.org :fr:.
- Episode #126: Natural born SaaS killers @ Changelog & Friends.
- OpenClaw Is a Preview of Why Governance Matters More Than Ever @ CloudBees.
- An AI Agent Published a Hit Piece on Me @ The Shamblog.
- OpenClaw, OpenAI and the future @ Peter Steinberger.
- 🦞 CRACKING THE CLAW @ CTO Lunch NYC.
- #126 - 🤖 News Janvier 2026 : Open Code, Qwen Code et un peu de code @ Double Slash :fr:.
- Pi: The Minimal Agent Within OpenClaw @ Armin Ronacher's Thoughts and Writings.
- AI tool OpenClaw wipes the inbox of Meta's AI Alignment director despite repeated commands to stop — executive had to manually terminate the AI to stop the bot from continuing to erase data @ tom's Hardware.
- OpenClaw’s Top Skill is a Malware that Stole SSH Keys and Opened Reverse Shells in 1,184 Packages @ Cyber Security News.
- Why Trying to Secure OpenClaw is Ridiculous @ aikido.
- The OpenClaw Necropsy: Agency, Apathy, and the Great Enclosure @ the mind of ai.
- OpenClaw Vulnerability Allowed Websites to Hijack AI Agents @ Security Week.
- Running OpenClaw safely: identity, isolation, and runtime risk @ Microsoft Security.
- OpenClaw Surpasses React to Become the Most-Starred Software Project on GitHub @ GitHub Star history blog.
- Meet the Startup That Used AI and OpenClaw to Automate Its Own Developers @ The Wall Street Journal.
- OpenClaw has 500,000 instances and no enterprise kill switch @ Venture Beat.
- OpenClaw Minimum Viable Agent Cheatsheet @ macebake's GitHub Gist.
- OpenClaw Minimum Viable Agent Quick Start @ macebake's GitHub Gist.
- OpenClaw for Dummies @ Tessl.
- #80 - Passing the Gourd @ Linux Matters.
- Inside the OpenClaw Ecosystem: What Happens When AI Agents Get Credentials to Everything @ Permiso.
The OpenCLI specification (OCS) defines a standard, platform and language agnostic interface to CLI applications which allows both humans and computers to understand how a CLI tool should be invoked without access to source code or documentation.
An OpenCLI Description can be used by documentation software to display usage of a tool, or code generation tools to create clients for interoping with a CLI tool.
Related contents:
Clear boundaries. No limits.
Excellent file sharing: Secure and scalable cloud solutions.
Excellent file management and collaboration for public authorities, providers and business - or anyone who values ease of use and digital sovereignty.
Related contents:
AI coding agent built for the terminal.
Related contents:
- Awesome Opencode @ GitHub.
- Self-Hosting AI Models After Claude's Usage Limits @ Peter Steinberger.
- OpenCode vs Claude Code @ builder.io.
- How to Integrate AI into Your Terminal Using OpenCode @ freeCodeCamp.
- Subagents: When and How to Use Them @ builder.io.
- Stop Using OpenCode @ Luke Wren.
- #1021: We got addicted to an AI model we can't talk about @ Syntax.
Fast, efficient, battle-tested at Alibaba's scale. Hybrid architecture code review tool: deterministic pipelines + LLM Agent, precise line-level comments, built-in multi-language ruleset (NPE, thread-safety, XSS, SQL injection), OpenAI & Anthropic compatible.
Collaborative Money Management. Raise, manage and disburse money with full transparency.
We provide the infrastructure for effective financial coordination. Enabling organizations, groups and communities to build trust around money.
Related contents:
Open Console can be used to level the playfield: an alternative to Google's Search Console is a module in the Open Console web-interface. Your prove your identity and site ownership ones, and all Search Engines can get the same configuration you entered.
The Open Container Initiative is an open governance structure for the express purpose of creating open industry standards around container formats and runtimes.
Established in June 2015 by Docker and other leaders in the container industry, the OCI currently contains three specifications: the Runtime Specification (runtime-spec), the Image Specification (image-spec) and the Distribution Specification (distribution-spec). The Runtime Specification outlines how to run a “filesystem bundle” that is unpacked on disk. At a high-level an OCI implementation would download an OCI Image then unpack that image into an OCI Runtime filesystem bundle. At this point the OCI Runtime Bundle would be run by an OCI Runtime.
Related contents:
The largest open database of companies in the world
open source cost monitoring for cloud native environments.
OpenCost is a vendor-neutral open source project for measuring and allocating cloud infrastructure and container costs in real time. Built by Kubernetes experts and supported by Kubernetes practitioners, OpenCost shines a light into the black box of Kubernetes spend.
OpenCost give teams visibility into current and historical Kubernetes and cloud spend and resource allocation. These models provide cost transparency in Kubernetes environments that support multiple applications, teams, departments, etc. It also provides visibility into the cloud costs across multiple providers.
Related contents:
Open CoDesignDesign with intent. Open-Source AI Design Tool — BYOK, Local-First.
An open-source desktop AI design tool. Bring your own model, keep everything local — a self-hosted alternative to Claude Design, built for teams who can't afford subscription lock-in.
Open-source Claude Design alternative. One-click import your Claude Code / Codex API key. Prompt → prototype / slides / PDF. Multi-model (Claude, GPT, Gemini, Kimi, GLM, Ollama). BYOK, local-first, MIT.
The open-source CapCut alternative.
A simple but powerful video editor that gets the job done. Works on any platform.
Open Computer Vision. Open source machine learning library for computer vision.
Related contents:
OpenDAL represents Open Data Access Layer. Our vision is One Layer, All Storage.
OpenDAL (/ˈoʊ.pən.dæl/, pronounced "OH-puhn-dal") is an Open Data Access Layer that enables seamless interaction with diverse storage services.
OpenDAL's development is guided by its vision of One Layer, All Storage and its core principles: Open Community, Solid Foundation, Fast Access, Object Storage First, and Extensible Architecture.
Related contents:
OpenDepot is a self-hosted, Kubernetes-native registry where Depots continuously reconcile OpenTofu and Terraform modules and providers. Define distribution in manifests and let OpenDepot keep your registry in sync.
Related contents:
Design with the agent already on your laptop.
🎨 Local-first, open-source alternative to Anthropic's Claude Design. ⚡ 19 Skills · ✨ 71 brand-grade Design Systems 🖼 Generate web · desktop · mobile prototypes · slides · images · videos · HyperFrames 📦 Sandboxed preview · HTML/PDF/PPTX/MP4 export 🤖 Runs on Claude Code / Codex / Cursor / Gemini / OpenCode / Qwen / Copilot / Hermes / Kimi CLI.
Related contents:
Turn your spare Apple devices into second monitors for your Mac (free & open source).
Free, open-source Sidecar/Duet alternative — use your iPhone or iPad as a true second monitor for your Mac over USB or WiFi. Low latency H.264, Retina HiDPI, touch input.
Related contents:
Free Open Source Drone Log Analysis and backup tool- Own Your Drone Data.
Free, open-source drone flight log analyzer for DJI and Litchi. Analyze telemetry, replay 3D flights, track battery health with privacy-first local storage. Desktop & Docker available.
Related contents:
Kubernetes storage simplified.
OpenEBS helps Developers and Platform SREs easily deploy Kubernetes Stateful Workloads that require fast and highly reliable container attached storage. OpenEBS turns any storage available on the Kubernetes worker nodes into local or distributed Kubernetes Persistent Volumes.
OpenEmu is about to change the world of video game emulation. One console at a time...
Open source monitoring for understanding energy. Exploring zero carbon energy systems.
The first open-source platform for automated database provisioning and management. It supports multiple database technologies and can be hosted on any Kubernetes infrastructure, in the cloud or on-premises.
OpenEverest is an open-source platform for automated database provisioning and management. It supports multiple database technologies and can be hosted on any Kubernetes infrastructure, in the cloud or on-premises.
Related contents:
AI-powered virtual executive team — a single coherent executive persona backed by 8 specialist Claude agents (FastAPI + Next.js).
Standardizing Feature Flagging for Everyone.
OpenFeature is an open specification that provides a vendor-agnostic, community-driven API for feature flagging that works with your favorite feature flag management tool or in-house solution.
Open Federation is a community-driven open source initiative to create and maintain a specification for federated GraphQL APIs. Be part of the future; let's craft together.
Talks/events/meetups/conferences feedback.
Open Feedback is an opened SaaS platform for organisers and speakers to gather users feedback. It connects to one of 3 data source: OpenFeedback database, hoverboard-v2, or your own API, to retrieve all the sessions & speakers.
Fine-Grained Authorization. A high performance and flexible authorization/permission engine built for developers and inspired by Google Zanzibar
Relationship-based access control made fast, scalable, and easy to use.
OpenFGA is an open-source authorization solution that allows developers to build granular access control using an easy-to-read modeling language and friendly APIs.
Related contents:
Open models to compute tax and benefit systems. OpenFisca is a versatile microsimulation free software. The most widely adopted free and open-source engine to write rules as code.
Government departments, lawmakers and civil society finally share a common language to debate and activate social and fiscal policies: OpenFisca enables collaboratively modelling laws and regulations and making them computable over open APIs for developers, datascientists and researchers.
The OpenFlexure project makes high precision mechanical positioning available to anyone with a 3D printer - for use in microscopes, micromanipulators, and more.
Related contents:
Free Local-First AI Diagramming for Builders.
100% Free, Open-source local-first AI diagramming for architecture diagrams and flowcharts with animated exports.
Create flows from templates, code, structured imports, or AI. Refine them visually, keep them local-first, and export — including as a cinematic animated video that no other open-source tool offers.
An open source port of Cannon Fodder.
Cannon Fodder is an action-strategy shoot ‘em up game developed by Sensible Software and published by Virgin Interactive.
The game is military-themed and based on shooting action but with a strategy game-style control system. The player directs troops through numerous missions, battling enemy infantry, vehicles and installations.
Related contents:
OpenFreeMap lets you display custom maps on your website and apps for free.
You can either self-host or use our public instance. Everything is open-source, including the full production setup — there’s no ‘open-core’ model here. Check out our GitHub. The map data comes from OpenStreetMap.
Related contents:
The open agent runtime.
Open, self-hostable agentic runtime for organizations — durable, replayable agent sessions, human approvals, governed credentials and memory, running in managed sandboxes or on your own hardware. Apache-2.0.
A powerful Python package for integrating artificial intelligence with geospatial data analysis and visualization.
Related contents:
Self-hosted pastebin powered by Git, open-source alternative to Github Gist.
Related contents:
A lightweight, vanilla JS, open source BYOK (Bring Your Own Key) clone of the Google Antigravity UI. It currently features a live xterm.js terminal with direct local file system sync and a sidebar agent capable of running commands and editing files. Built in pure HTML/CSS/JS for maximum speed and zero installation.
Amphion (/æmˈfaɪən/) is a toolkit for Audio, Music, and Speech Generation. Its purpose is to support reproducible research and help junior researchers and engineers get started in the field of audio, music, and speech generation research and development.
an open blockchain network for insurers.
openIDL (open Insurance Data Link) is an open blockchain network that streamlines regulatory reporting and provides new insights for insurers, while enhancing timeliness, accuracy, and value for regulators. openIDL is the first open blockchain platform that enables the efficient, secure, and permissioned-based collection and sharing of statistical data.
OpenIPC is an open source operating system from the open community targeting for IP cameras with ARM and MIPS processors from several manufacturers in order to replace that closed, opaque, insecure, often abandoned and unsupported firmware pre-installed by a vendor.
Related contents:
The place to collaborate on an open-source implementation of the Java Platform, Standard Edition, and related projects.
Related contents:
A lightweight open framework for building fast and efficient cloud-native Java microservices.
Build cloud-native apps and microservices while running only what you need. Open LibertyTM is the most flexible server runtime available to JavaTM developers in this solar system.
Interactive License Selector. Quickly match license types through simple Q&A.
Related contents:
OpenLiteSpeed is the Open Source edition of LiteSpeed Web Server Enterprise.
OpenLiteSpeed is a high-performance, lightweight, open source HTTP server developed and copyrighted by LiteSpeed Technologies. Users are free to download, use, distribute, and modify OpenLiteSpeed and its source code in accordance with the precepts of the GPLv3 license.