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AddDecentralized social media.
Mastodon is a free, open source social network based on ActivityPub, where users can follow friends and discover new ones. All Mastodon servers are interoperable as a federated network.
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A federated content aggregator, voting, discussion and microblogging platform (By the community, for the community)
Mbin is a decentralized content aggregator, voting, discussion and microblogging platform running on the fediverse network. It can communicate with many other ActivityPub services, including Kbin, Mastodon, Lemmy, Pleroma, Peertube. The initiative aims to promote a free and open internet.
ActivityPub-federated video streaming platform using P2P directly in your web browser. An alternative to Big Tech's video platforms.
PeerTube is a tool for sharing online videos developed by Framasoft, a french non-profit.
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Open Source Federated Forum.
a link aggregator, a forum, a hub of social interaction and information, built for the fediverse. Our focus is on individual control, safety, and decentralised power.
Text-mode interface for Git
Tig is an ncurses-based text-mode interface for git. It functions mainly as a Git repository browser, but can also assist in staging changes for commit at chunk level and act as a pager for output from various Git commands.
Light-weight, no-dependency, vanilla JavaScript engine to drive user's focus across the page
primitive and flexible state management for React. Jotai takes an atomic approach to global React state management inspired by Recoil.
Build state by combining atoms and renders are automatically optimized based on atom dependency. This solves the extra re-render issue of React context, eliminates the need for memoization, and provides a similar developer experience to signals while maintaining a declarative programming model.
Welcome to Jotte, an AI-powered graph-based writing tool that helps you create high-quality, informative content with ease. Jotte uses nodes and varying specificities of summaries to carry relevant information through an extremely long set of text, making it an ideal tool for creating long-form content.
protocol buffers with small code size.Protocol Buffers for Embedded Systems.
Nanopb is a plain-C implementation of Google's Protocol Buffers data format. It is targeted at 32 bit microcontrollers, but is also fit for other embedded systems with tight (<10 kB ROM, <1 kB RAM) memory constraints.
jscodeshift is a toolkit for building and running codemods over multiple JavaScript or TypeScript files.
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The simpliest API to run DOS games in browser.
The simplest API to run DOS/Win 9x programs in browser or node. js-dos provides full-featured DOS player that can be easily installed and used to get your DOS program up and running in browser quickly. js-dos provide many advanced features like multiplayer and cloud storage. All available features are enabled for any integration and free.
Code Playground Test your JavaScript, CSS, HTML or CoffeeScript online with JSFiddle code editor.
JSON for Humans.
JSON5 is an extension to the popular JSON file format that aims to be easier to write and maintain by hand (e.g. for config files). It is not intended to be used for machine-to-machine communication. (Keep using JSON or other file formats for that. 🙂)
A specification for building APIs in JSON.
Documentation for the application/vnd.api+json media type, a specification for APIs that use JSON.
If you’ve ever argued with your team about the way your JSON responses should be formatted, JSON:API can help you stop the bikeshedding and focus on what matters: your application. By following shared conventions, you can increase productivity, take advantage of generalized tooling and best practices. Clients built around JSON:API are able to take advantage of its features around efficiently caching responses, sometimes eliminating network requests entirely.
Crack your data into pieces. Seamlessly visualize your JSON data instantly into graphs.
JSON for Linking Data. Data is messy and disconnected. JSON-LD organizes and connects it, creating a better Web.
This page describes the JSON Lines text format, also called newline-delimited JSON. JSON Lines is a convenient format for storing structured data that may be processed one record at a time. It works well with unix-style text processing tools and shell pipelines. It's a great format for log files. It's also a flexible format for passing messages between cooperating processes.
A data templating language for app and tool developers
- Generate config data
- Side-effect free
- Organize, simplify, unify
- Manage sprawling config
The open source initiative to create a JSON-based standard for resumes. For developers, by developers.
While JSON is probably the most popular format for exchanging data, JSON Schema is the vocabulary that enables JSON data consistency, validity, and interoperability at scale.
JSON Formatter, Validator & Viewer Online.
Effortlessly visualize JSON structures as interactive and dynamic tree diagrams.
jsontr.ee is a lightweight JavaScript library that transforms JSON data into beautifully rendered, interactive tree diagrams using SVG. Designed for simplicity and flexibility, it supports both arrays and nested objects, ensuring clear and intuitive visualizations of complex data structures.
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The open-source package registry for modern JavaScript and TypeScript.
JSR is designed for TypeScript. You publish TypeScript source, and JSR handles generating API docs, .d.ts files, and transpiling your code for cross-runtime compatibility.
JSR packages are distributed as web-standard ECMAScript modules.
a no-build TypeScript fullstack SSR-first framework for developing fast web applications with a shallow learning curve
FullS(tack)oak (FullSoak for short) is a modern (born 2025), no-build TypeScript fullstack framework for building fast web applications with a shallow learning curve. At its core is the Oak http server framework which is inspired by Koa (one of the popular Node.js http frameworks).
Full-Stack Next.js & TypeScript Toolkit. Ship high-performance ⚡ Next.js apps in minutes.
Build seriously fast, lightweight and end-to-end typesafe Next.js apps. The stack for building seriously fast, lightweight and end-to-end typesafe Next.js apps.
A jQuery autocomplete plugin for the discerning developer. After spending years struggling with various autocomplete plugins, I became fed up with their bugginess, poor documentation, lack of updates, inflexibility, and antiquated coding patterns. Surely something as fundamental as autocomplete could — really, should — be done better. And now it has. Meet Marco Polo. For the discerning developer.
🚀 😍 The internationalization (i18n) library for Angular
Transloco allows you to define translations for your content in different languages and switch between them easily in runtime. It exposes a rich API to manage translations efficiently and cleanly. It provides multiple plugins that will improve your development experience. Here is a small taste of the features it offers:
The most powerful and extensible open source Wiki software. Make documentation a joy to write using Wiki.js's beautiful and intuitive interface!
Open Source Distributed POSIX File System for Cloud. JuiceFS is a distributed POSIX file system built on top of Redis and S3.
JuiceFS is a high-performance POSIX file system released under Apache License 2.0, particularly designed for the cloud-native environment. The data, stored via JuiceFS, will be persisted in Object Storage (e.g. Amazon S3), and the corresponding metadata can be persisted in various compatible database engines such as Redis, MySQL, and TiKV based on the scenarios and requirements.
With JuiceFS, massive cloud storage can be directly connected to big data, machine learning, artificial intelligence, and various application platforms in production environments. Without modifying code, the massive cloud storage can be used as efficiently as local storage.
fzf is a general-purpose command-line fuzzy finder.
It’s an interactive filter program for any kind of list; files, command history, processes, hostnames, bookmarks, git commits, etc. With its novel “fuzzy” matching algorithm, you can quickly type in patterns with omitted characters and still get the results you want.
Build beautiful, publication-quality books and documents from computational content.
Jupyter Book is an open-source tool for building publication-quality books and documents from computational material.
With JupyterHub you can create a multi-user Hub that spawns, manages, and proxies multiple instances of the single-user Jupyter notebook server. Project Jupyter created JupyterHub to support many users. The Hub can offer notebook servers to a class of students, a corporate data science workgroup, a scientific research project, or a high-performance computing group. JupyterHub brings the power of notebooks to groups of users. It gives users access to computational environments and resources without burdening the users with installation and maintenance tasks. Users - including students, researchers, and data scientists - can get their work done in their own workspaces on shared resources which can be managed efficiently by system administrators. JupyterHub @ GitHub
All-purpose Source-Available Project Management Platform.
JustDo is an all-purpose, enterprise-grade project management platform designed for maximum flexibility and customization.
A Command Runner. A make alternative.
just is a handy way to save and run project-specific commands.
LaziestLoader is a responive-aware lazy loader, mostly for images...
JSON Web Tokens are an open, industry standard RFC 7519 method for representing claims securely between two parties.
Generate JWT Secrets Online
Quickly generate secure JWT secrets with a single click.
Deploy and Manage Kubernetes at scale.
k0rdent has been developed to provide a way to manage distributed infrastructure at massive scale leveraging kubernetes.
An open source control plane manager for unified cluster management.
k0smotron allows you to unify your Kubernetes cluster management for an efficient use of resources. It’s designed for k0s.
From pets to cattle: Streamline your Kubernetes control plane management with k0smotron. Experience unparalleled isolation, scalability, and resource efficiency for your Kubernetes control planes with k0smotron - the ultimate Kubernetes management solution. It’s designed for k0s
Kubernetes distribution for bare-metal, on-prem, edge, IoT.
k0s is the simple, solid & certified Kubernetes distribution that works on any infrastructure: bare-metal, on-premises, edge, IoT, public & private clouds. It's 100% open source & free.
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Speech-to-text, text-to-speech, and speaker recongition using next-gen Kaldi with onnxruntime without Internet connection. Support embedded systems, Android, iOS, Raspberry Pi, RISC-V, x86_64 servers, websocket server/client, C/C++, Python, Kotlin, C#, Go, NodeJS, Java, Swift.
Lightweight Kubernetes. Production ready, easy to install, half the memory, all in a binary less than 100 MB.
The certified Kubernetes distribution built for IoT & Edge computing.
Load testing for engineering teams. The best developer experience for load testing. Open source and SaaS for engineering teams.
k6 is a modern load-testing tool, built on our years of experience in the performance and testing industries. It's built to be powerful, extensible, and full-featured. The key design goal is to provide the best developer experience.
Giving Kubernetes Superpowers to everyone.
k8sgpt is a tool for scanning your Kubernetes clusters, diagnosing, and triaging issues in simple English. It has SRE experience codified into its analyzers and helps to pull out the most relevant information to enrich it with AI.
The Kubernetes IDE The largest and most advanced Kubernetes platform in the world
🐶 Kubernetes CLI To Manage Your Clusters In Style!
K9s is a terminal based UI to interact with your Kubernetes clusters. The aim of this project is to make it easier to navigate, observe and manage your deployed applications in the wild. K9s continually watches Kubernetes for changes and offers subsequent commands to interact with your observed resources.
Apache Kafka is an open-source distributed event streaming platform used by thousands of companies for high-performance data pipelines, streaming analytics, data integration, and mission-critical applications.
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Bringing Agentic AI to cloud native.
An open-source framework for DevOps and platform engineers to run AI agents in Kubernetes, automating complex operations and troubleshooting tasks.
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A Premium Search Engine.
Fast, accurate, and ad-free. The search engine you deserve.
Imagine the internet like a huge neighborhood. There's a lot of folks around, but we rarely bump into each other, right? Kagi's all about humanizing the web and we want to help surface the people behind the posts and stories that zip by. This less known corner of the web is also known as the "small web".
Kahlan is a full-featured Unit & BDD test framework a la RSpec/JSpec which uses a describe-it syntax and moves testing in PHP one step forward.
Learning games, Make learning awesome!
Kahoot! is a global learning and engagement platform company that wants to empower everyone, including children, students, and employees, to unlock their full learning potential.
The Kahoot! platform makes it easy for any individual or corporation to create, share, and host learning sessions that drive compelling engagement and boost learning outcomes. Kahoot! sessions can be hosted anywhere, in person or virtually, using any device with an internet connection.
BirdNET-Analyzer is an open source tool for analyzing bird calls using machine learning models. It can process large amounts of audio recordings and identify (bird) species based on their calls.
The distribution for professional IT.
Kaisen Linux is a distribution for IT professional based on the Debian GNU/Linux distribution. It is a complete operating system whose originality is to provide a set of tools dedicated to system administration and covering all the needs for diagnosing and dealing with faults or failures of an installed system and its components. The most important system tools are available. It is thus possible to modify the partitioning of hard disks, to save the data or the system, to repair the file system and to recover lost data, or to reactivate the boot manager, to carry out a deep formatting of a hard drive, diagnostics of networks at several levels and on many protocols, creation and management of PKI, virtualization, automation, containerization, network lab with GNS3 and many others!
Kakoune is a code editor that implements Vi’s "keystrokes as a text editing language" model. As it's a modal editor, it's somewhat similar to the Vim editor (which was Kakoune original inspiration).
Kallithea, a member project of Software Freedom Conservancy, is a GPLv3'd, Free Software source code management system that supports two leading version control systems, Mercurial and Git, and has a web interface that is easy to use for users and admins. You can install Kallithea on your own server and host repositories for the version control system of your choice.
Kalmia is a Go tool with a web interface for managing RsPress documentation. It supports multiple versions, multiple users, and includes a markdown editor for easy edits. Please visit our website for more information on how to use Kalmia and its features.
The Control Plane Manager for Kubernetes.
Kamaji runs the Control Plane as pods within a Management Cluster, rather than on dedicated machines. This approach simplifies operations and enables the management of multiple Kubernetes clusters with a fraction of the operational burden.
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