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AddA powerful, flexible, Markdown-based authoring framework.
From personal blogs to massive documentation sites, Markdoc is a content authoring system that grows with you.
Markdoc is a Markdown-based syntax and toolchain for creating custom documentation sites and experiences. We designed Markdoc to power Stripe's public docs, our largest and most complex content site.
Markdown-first CMS for bloggers, minimalists and startups. Open Source alternative to Substack, Mailchimp and Netlify.
The Sysinternals ADO Task extension brings the power of Sysinternals tools directly into your Azure DevOps pipelines, empowering you to troubleshoot complex build and release issues with greater efficiency.
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Tools for deduping file systems.
Duperemove is a simple tool for finding duplicated extents and submitting them for deduplication. When given a list of files it will hash their contents on a block by block basis and compare those hashes to each other, finding and categorizing extents that match each other. When given the -d option, duperemove will submit those extents for deduplication using the Linux kernel FIDEDUPERANGE ioctl.
Build mindmaps with plain text. Visualize your Markdown as mindmaps.
Markopolis is a self-hostable alternative to Obsidian Publish.
a web app and API server designed to serve Markdown files. It allows you to share Markdown notes as websites and interact with and manipulate your Markdown files using an API. Simply install Markopolis, point it to a directory holding all your Markdown files, and the library takes care of everything else.
The Bootstrap Filestyle is a plugin for jquery-based component library could Twitter Bootstrap, used to style the file fields of the forms.
The Open-Source CRM Toolkit for Personalized Solutions.
Build the CRM that matches your company's vision. Designed for developers, loved by end users. A full-featured CRM built with React, react-admin, and Supabase.
The Open-Source React Framework for B2B Apps.
React-admin offers the best developer experience, lets you focus on business needs, and build delightful user interfaces.
Create beautiful slide decks using an intuitive Markdown experience Marp (also known as the Markdown Presentation Ecosystem) provides an intuitive experience for creating beautiful slide decks. You only have to focus on writing your story in a Markdown document.
Paywall bypass.
Marreta is a tool for analyzing URLs and accessing content on the web without any headaches.
File Manager for macOS. Native. Extensible. Fast.
Marta is a native macOS application written entirely in Swift. It offers a native experience and is blazingly fast.
The pragmatic web framework. Marten is a Crystal web framework that makes building web applications easy, productive, and fun.
Converged Container and Virtual Machine Hypervisor.
SmartOS, with its remarkable blend of the illumos kernel's power and the agility of a lightweight OS, has become the preferred choice for many specialized applications. While it shines as a standalone system, its capabilities are truly amplified when used with Triton Compute.
Sieve mail filtering script Web UI
Maru is a new kind of computing experience. It gives you a single, context-aware device that makes personal computing really simple. And guess what? That device is your smartphone.
an open-source, multilingual text-to-speech synthesis system written in pure java.
MaryTTS is an open-source, multilingual Text-to-Speech Synthesis platform written in Java. It was originally developed as a collaborative project of DFKI’s Language Technology Lab and the Institute of Phonetics at Saarland University. It is now maintained by the Multimodal Speech Processing Group in the Cluster of Excellence MMCI and DFKI.
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Laravel Blade UI Components for Livewire 3.
Gorgeous Laravel Blade UI Components made for Livewire 3 and styled around daisyUI + Tailwind.
A free and open source code snippets manager for developers. It helps you create and organize your own personal snippets collection and have quick access to it.
Mastodon is a free, open-source social network. A decentralized alternative to commercial platforms, it avoids the risks of a single company monopolizing your communication. Pick a server that you trust — whichever you choose, you can interact with everyone else. Anyone can run their own Mastodon instance and participate in the social network seamlessly.
The Typescript AI framework.
Mastra is an opinionated Typescript framework that helps you build AI applications and features quickly. It gives you the set of primitives you need: workflows, agents, RAG, integrations, syncs and evals. You can run Mastra on your local machine, or deploy to a serverless cloud.
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The Cloud Operational Data Store. Use SQL to transform, deliver, and act on fast-changing data.
Materialize is a cloud-native data warehouse purpose-built for operational workloads where an analytical data warehouse would be too slow, and a stream processor would be too complicated.
Using SQL and common tools in the wider data ecosystem, Materialize allows you to build real-time automation, engaging customer experiences, and interactive data products that drive value for your business while reducing the cost of data freshness.
A modern responsive front-end framework based on Material Design
Open source UI for Postgres databases.
Mathesar is a straightforward open source tool that provides a spreadsheet-like interface to a PostgreSQL database. Our web-based interface helps you and your collaborators work with data more independently and comfortably – no technical skills needed.
You can use Mathesar to build data models, enter data, and even build reports. You host your own Mathesar installation, which gives you ownership, privacy, and control of your data.
An open network for secure, decentralized communication. Matrix is an open source project that publishes the Matrix open standard for secure, decentralised, real-time communication, and its Apache licensed reference implementations.
Open Source Collaboration for Developers. Team collaboration built for developers. Finally, an open source platform that’s secure, flexible, and integrated with the tools you love.
Open Source Virtual Machine management platform. Run Your VMware VMs Natively on Matterv.
Introducing Matterv - the world's first hypervisor to run VMware virtual machines without modifications. MatterV is an open-source virtual machine management platform that simplifies VM operations and management at scale. MatterV provides a unified interface for managing virtual machines across different environments. Whether you're running a small development setup or managing enterprise-level infrastructure, MatterV offers the tools you need to streamline your VM operations.
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Apache Maven is a software project management and comprehension tool. Based on the concept of a project object model (POM), Maven can manage a project's build, reporting and documentation from a central piece of information.
A modern selfhosted media management system for your media library.
MediaManager is modern software to manage your TV and movie library. It is designed to be a replacement for Sonarr, Radarr, Overseer, and Jellyseer. It supports TVDB and TMDB for metadata, supports OIDC and OAuth 2.0 for authentication and supports Prowlarr and Jackett. MediaManager is built first and foremost for deployment with Docker, making it easy to set up.
Open-Source No-Code Web Data Extraction Platform.
Build custom robots to automate data scraping.
This is Maxwell's daemon, a change data capture application that reads MySQL binlogs and writes data changes as JSON to Kafka, Kinesis, and other streaming platforms.
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The OS for your personal finances.
Maybe is a fully open-source app for your personal finances built by a small team alongside an incredible community.
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Otter is designed to provide an excellent developer experience while maintaining blazing-fast performance. It aims to address the shortcomings of its predecessors and incorporates design principles from high-performance libraries in other languages (such as Caffeine).
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A self-hosted local image compressor that runs in your browser.
MAZANOKE is a simple image compressor and converter that runs entirely in your browser. No external uploads, works offline as a web app, and is powered by Browser Image Compression.
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mCaptcha is proof-of-work based captcha system that is privacy focused and fully automated. A no-nonsense CAPTCHA system with seamless UX.
mCaptcha is a privacy respecting, free CAPTCHA system with a kickass UX. Your users no longer have to interact with ridiculous image-based CAPTCHA system, wasting precious mental bandwidth. Instead, your computer will do the work for you, see for yourself!
ARK extends Kubernetes with custom resources that make agents, teams, MCP tools, and workflows first-class citizens in your cluster.
Provider-agnostic operations for agentic resources. ARK codifies patterns and practices developed across dozens of agentic application projects.
Model Context Protocolfor the Browser
Browser-based Model Context Protocol (MCP) implementation that enables AI assistants to interact with web applications through standardized MCP tools.
Today's AI automation is like using a robot to read your screen and click buttons. MCP-B gives AI direct access to your website's functions instead.
Interactive UI Components for MCP SDK for UI over MCP. Create next-gen UI experiences!
Build rich, dynamic user interfaces for your MCP applications with SDKs that bring UI to AI interactions.
Build and deploy MCP agents.
Spin-up and aggregate MCP servers through a single endpoint and zero friction.
mcp-use is the easiest way to interact with mcp servers with custom agents. 🌐 MCP-Use is the open source way to connect any LLM to any MCP server and build custom MCP agents that have tool access, without using closed source or application clients.
Monte Carlo simulation of the NBA season, leveraging dbt, duckdb and evidence.dev.
A fast, free and open-source Modern Data Stack (MDS) that can be fully deployed on your laptop or to a single machine.
This project implements a sports Monte Carlo simulator using duckdb, dbt, and evidence. The project is built and run about once per day in a github action. You can learn more about this on the original blog post or on the about page.
Markdown for the component era.
MDX lets you use JSX in your markdown content. You can import components, such as interactive charts or alerts, and embed them within your content. This makes writing long-form content with components a blast.
MDX is an authorable format that lets you seamlessly write JSX in your markdown documents. You can import components, such as interactive charts or alerts, and embed them within your content. This makes writing long-form content with components a blast. 🚀
Recipe Management For The Modern Household
Mealie is an intuitive and easy to use recipe management app. It's designed to make your life easier by being the best recipes management experience on the web and providing you with an easy to use interface to manage your growing collection of recipes.
Responsive CSS motion paths!
A micro-library for scaling CSS motion path strings.
MediaCMS is a modern, fully featured open source video and media CMS. It is developed to meet the needs of modern web platforms for viewing and sharing media. It can be used to build a small to medium video and media portal within minutes.
What was that media query code again?
If you're like me, you'll often know which media query to reach for but just can't quite remember the syntax. This site lists popular media queries with a handy copy button for code the snippet you need.
The ultimate Docker Compose files and configs to build your desired media stack, quickly and easily, with secure outbound network traffic and secure remote access using multifactor authentication.
With many people owning digital media such as CDs, DVD, and Blu-ray disks, home movies, personal photos, personal music collection, its common that people want to build home media servers in order to manage and access their digital libraries from any device within their home network, their mobile devices, and even remotely when they may be away on holidays or having a lunch break at work.
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the open source Shopify alternative.
Medusa is an open source composable commerce engine built with Node.js. Medusa enables developers to build scalable and sophisticated commerce setups with low effort and great developer experience.
🦙 MegaLinter analyzes 50 languages, 22 formats, 21 tooling formats, excessive copy-pastes, spelling mistakes and security issues in your repository sources with a GitHub Action, other CI tools or locally.
MegaMek is a networked Java clone of BattleTech, a turn-based sci-fi boardgame for 2+ players. Fight using giant robots, tanks, and/or infantry on a hex-based map.
MegaMek is a free and open source program that lets you play the tabletop BattleTech game online or against the AI. You can customize units, create campaigns, edit maps, and access the interstellar map with official and custom data.
Meiliweb is a web-based administration panel that helps you store, organize and visualize data in your Meilisearch instances.
a library for building JavaScript web applications.
Melody is a fast and memory efficient library for creating highly dynamic user interfaces.
Melody is a UI library for building JavaScript applications. It helps you to write solid, high performance applications following best practices, while maintaining a clear separation of concerns. The view layer is cleanly delegated to templates which are compiled to highly efficient JavaScript instructions that adaptively render to the DOM.
melt away complexity. An open-source Svelte library for building high-quality, accessible design systems and web apps.
Google Doc Sheet open source clone
The best SQLite database editor for macOS
Base is a small, powerful, comfortable SQLite editor for everyone
The open source operating system for smart glasses.
Smart glasses OS, with dozens of built-in apps. Users get AI assistant, notifications, translation, screen mirror, captions, and more. Devs get to write 1 app that runs on any pair of smart glases.
64bit and 32bit assembly OS.
MenuetOS is an operating system in development for PC, written completely in 64bit assembly language. Features include pre-emptive and real-time multitasking with multiprocessor support and Graphical User Interface.
Color ramp generator using curves within the HSV color model. FettePalette is lightweight, dependency free and fast JavaScript function written in TypeScript. It generates color ramps based on a curve within the HSV color model. This page serves as preview for the variety of options the function takes. FettePalette @ GitHub.
Esoteric Color Palette Generation Library.
"poline" is an enigmatic color palette generator, that harnesses the mystical witchcraft of polar coordinates. Its methodology, defying conventional color science, is steeped in the esoteric knowledge of the early 20th century. This magical technology defies explanation, drawing lines between anchors to produce visually striking and otherworldly palettes. It is an indispensable tool for the modern generative sorcerer, and a delight for the eye.
Real-time APIs Made Easy.
Mercure is an open protocol for real-time communications designed to be fast, reliable and battery-efficient. It is a modern and convenient replacement for both the Websocket API and the higher-level libraries and services relying on it.
Mercure is a protocol for pushing data updates to web browsers and other HTTP clients in a convenient, fast, reliable, and battery-efficient way. It is especially useful to publish async and real-time updates of resources served through web APIs, to reactive web and mobile apps.