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Addfree AI coding. Non-agentic 100% free & open source coding tool for AI-assisted programming.
Copy folders and files for chatbots or initialize them hands-free! Use built-in API Tools for code completions, file refactoring and applying chat responses.
Look At Your Data 👀.
Data quality is the most important factor in machine learning success. Hyperparam brings exploration and analysis of massive text datasets to the browser.
MCP server for understanding AWS spend.
An MCP server for getting AWS spend data via Cost Explorer and Amazon Bedrock usage data via Model invocation logs in Amazon Cloud Watch through Anthropic's MCP (Model Control Protocol).
Docker image for terraform provisioning that supports provider plugin caching and declarative binary installation via mise.
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jscodeshift is a toolkit for building and running codemods over multiple JavaScript or TypeScript files.
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All-in-One Network Monitoring Software.
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The best way of working with Protocol Buffers. Kafka and gRPC for the modern age.
Store directly to Apache Iceberg™ tables and guarantee data quality with Bufstream, a drop-in replacement for Apache Kafka® deployed entirely in your own VPC on AWS, GCP, or Azure.
The buf CLI is the best tool for working with Protocol Buffers. It provides:
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A linter that enforces good API design choices and structure.
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A breaking change detector that enforces compatibility at the source code or wire level.
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A generator that invokes your plugins based on configuration files.
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A formatter that formats your Protobuf files in accordance with industry standards.
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Integration with the Buf Schema Registry, including full dependency management.
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A web-app framework that includes everything needed to create database-backed web applications according to the Model-View-Controller (MVC) pattern.
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- The Unofficial 37signals/DHH Rails Style Guide @ Marc Köhlbrugge's GitHub Gist.
- Making the case for Rails monoliths over microservices @ thoughtbot.
- Part 1: How We Fell Out of Love with Next.js and Back in Love with Ruby on Rails & Inertia.js @ Hardcover.
- The One-Person Framework in practice @ Bram Jetten.
- Serving Large Files in Rails with a Reverse Proxy Server @ Write Software, Well.
- My puts Debugging Workflow in Rails Apps @ Paweł Urbanek.
- Tip: Put your Rails app on a SQL query diet @ Andrew Atkinson.
- Ruby on Rails: The Open-Source Blueprint @ The Miners.
- Engineering excellence starts on edge @ David Heinemeier Hansson.
- You're doing Rails wrong @ Banana Curving Machine.
- The Rails developers' guide to mobile app frameworks @ Masilotti.com.
- How I Audit a Legacy Rails Codebase in the First Week @ piechowski.io.
- Returning To Rails in 2026 @ markround.com.
- Different Approaches to Debugging Query Performance in Rails @ Saeloun.
- Rails 8: How to Auto-Generate Social Media Preview Cards @ DevBlog by Zil Norvilis.
- Scaling Rails at Aura Frames: Splitting to 8 Primary DBs and Reaching #1 in the App Store @ Andrew Atkinson.
MCP Server to fetch costs and usage data from your Vantage account.
Use natural language to explore your organization’s cloud costs via MCP clients, like Claude, Cursor, and others. Ask questions about your organization's previous and current cloud cost spend, cost tagging, provider integrations, and more.
An open source, free (as in beer), versatile, flexible and lightweight Javascript Font Picker Component for System fonts, Google fonts and custom (woff/ttf) fonts. Features dynamic font loading, favourites, keyboard navigation, fuzzy search, advanced metrics filters, property sorting and much more. Available in multiple languages.
A declarative cross-platform React Native calendar component for iOS and Android.
I made my AI think harder by making it argue with itself repeatedly. It works stupidly well.
CoRT makes AI models recursively think about their responses, generate alternatives, and pick the best one. It's like giving the AI the ability to doubt itself and try again... and again... and again.
Python, on hardware.
PyXL is a custom chip that runs Python directly in hardware. no VM, no JIT, no C. Just fast, native Python execution.
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Visual Code Comparison Tool.
Effortlessly compare and merge code in a responsive split‑view interface, with interactive change selection and support for over 180 programming languages.
Visual Diff-Merge is a web-based tool for comparing, selecting, and merging code changes. With a split-view interface, it lets you view two versions side by side for easy diffing and merging. Built with PHP and JavaScript, it supports automatic language detection and syntax highlighting for over 180 programming languages, including HTML, Twig, PHP, JavaScript, JSON, TypeScript, Python, Ruby, Java, C#, CSS, XML, YAML, Markdown, SQL, and many more.
A 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.
Modern Zod-based CLI builder, fully type-safe, super lightweight and flexible.
An MCP server that autonomously evaluates web applications.
Browser Agents to vibe-test your web app. Let browser agents vibe-test your vibe-coding.
10x your vibe coding by giving your coding agent a browser agent that can vibe-test web applications via MCP.
Instant Distributed Tracing. Enterprise-Grade OpenTelemetry. Distributed tracing without code changes. 🚀 Instantly monitor any application using OpenTelemetry and eBPF.
Accelerate OpenTelemetry implementation with Odigos, an eBPF-based solution providing zero-code, zero-performance overhead for deeper tracing
Odigos is an open-source distributed tracing solution that simplifies and improves observability for Kubernetes environments and Virtual Machines. It provides instant tracing capabilities without requiring any code changes to your applications.
Harden Windows Safely, Securely using Official Supported Microsoft methods and proper explanation | Always up-to-date and works with the latest build of Windows | Provides tools and Guides for Personal, Enterprise, Government and Military security level
Transparent AI, Rooted in Research, Open to All. The Open Source Deep Researcher Tool. AI-Powered Online Data Information Synthesis Assistant.
CleverBee is a powerful Python-based research assistant agent using Large Language Models (LLMs) like Claude and Gemini, Playwright for web browsing, and Chainlit for an interactive UI. It performs research assistance by browsing the web, extracting content (HTML), cleaning it, and synthesizing findings based on user research topics.
Create stunning screen recordings right from your browser
The easiest way to create product demos and tutorials—right in your browser, no login required! Capture, edit, and share in minutes.
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Mandela's Library of Alexandria.
Internet-in-a-Box “learning hotspots” are used in dozens of countries, to give everyone a chance, e.g. in remote mountain villages in India.
Now you too can put the internet in a box and customize it with the very best free content for your school, clinic or family!
snapDOM captures DOM nodes as images with exceptional speed avoiding bottlenecks and long tasks.
snapDOM is a high-fidelity DOM capture tool, developed as part of the animation engine I'm developing for Zumly — a framework for creating smooth zoom-based view transitions.
E-ink IBM XT clone with solar power, ultra low power consumption, and ultra long battery life.
Evertop is a portable PC that emulates an IBM XT with an 80186 processor and 1MB RAM. It can run DOS, Minix, and some other old 1980s operating systems. It also runs Windows up to version 3.0. Because it's based on a powerful yet very low power microcontroller, uses an e-ink display, packs two 10,000mAh batteries, and implements extreme power saving measures, it can run for hundreds or even thousands of hours on a single charge. Combine that with its built in solar panel, and you should be able to use it indefinitely off grid without ever having to worry about battery life.
AI-Powered, Non-Intrusive Terminal Assistant
TmuxAI is a non-intrusive terminal assistant that works alongside you in a tmux window. TmuxAI's design philosophy mirrors the way humans collaborate at the terminal. Just as a colleague sitting next to you, TmuxAI observes your screen, understand context from what's visible, and helps accordingly.
Purpose-built log analytics UI for ClickHouse.
A modern, single binary, high-performance log analytics platform.
Logchef is a dedicated log query and visualization interface built specifically for ClickHouse. It fills a critical gap in the ClickHouse ecosystem, providing a powerful log explorer without reinventing log collection or storage.
Free Email Forwarding. Custom Domain Emails.
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Database Relationship Diagrams Design Tool.
Draw Entity-Relationship Diagrams, Painlessly 😎 A free, simple tool to draw ER diagrams by just writing code. Designed for developers and data analysts.
The elegant bundler for libraries powered by Rolldown.
tsdown is The Elegant Library Bundler. Designed with simplicity and speed in mind, it provides a seamless and efficient way to bundle your TypeScript and JavaScript libraries. Whether you're building a small utility or a complex library, tsdown empowers you to focus on your code while it handles the bundling process with elegance.
Open source data warehouse for real time data analytics.
Apache Doris is an easy-to-use, high-performance and real-time analytical database based on MPP architecture, known for its extreme speed and ease of use. It only requires a sub-second response time to return query results under massive data and can support not only high-concurrency point query scenarios but also high-throughput complex analysis scenarios.
Open source, AI-native testing framework for web apps.
End-to-end testing framework powered by visual AI agents that see your interface and adapt to any changes in it.
The free and open source email and collaboration software .
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Extract, Transform, Index Data. Easy and Fresh. CocoIndex is the world's first open-source engine that supports both custom transformation logic and incremental updates specialized for data indexing.
With CocoIndex, users declare the transformation, CocoIndex creates & maintains an index, and keeps the derived index up to date based on source update, with minimal computation and changes.
A machine learning framework for Node.js, based on MLX.
An open-source, self-hosted money management platform with comprehensive expense tracking, budgeting, account synchronization, and bill-splitting features - designed for privacy, flexibility, and complete financial control.
Flink is a simple, Free, Libre, and Open Source URL Shortener built with love and a ASP.NET Core 8 Web API. Why yet another URL Shortener, you might ask yourself? Well, because flink has a unique feature set, and demands around scalabilty, simplicity, security and traceability that no other URL shortener was able to fullfil.
Open-source monitoring made simple. Get real-time insights into your infrastructure with powerful analytics and instant alerts.
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Elevating Your Computing Experience with ZimaBoard Servers & Personal Cloud Solutions
A fast, lightweight, and self-hosted OPDS server for your eBook library. Upload, manage, and share books via a modern web interface or any OPDS-compatible reader. No database required. Runs as a single Go binary or Docker container. Mobile-friendly, drag & drop uploads, and CasaOS compatible.
Group Bill Splitting.
A simple app for splitting bills and expenses among groups. Kostos is a web application designed to help groups manage and split expenses collaboratively within projects.
Kindly RSS Reader is a self-hosted RSS aggregator designed for e-ink devices.
A web app to monitor usage of your Docker containers. Includes advanced filters, charts and notifications support (browser and pushover).
Track jobs, clients, vehicles, and invoices — full-featured workshop system in .NET + Next.js.
CarCare is a modern, self-hosted workshop management system built for vehicle service centers, auto repair shops, and maintenance facilities. It helps streamline your operations from job tracking to invoicing — all in one intuitive interface.
A self-contained, lightweight and OOB research platform for modern ML.
Boson is a lightweight, fully containerized, and feature-rich machine learning research platform. It centralizes essential tools to help teams keep projects lean, organized, and reproducible—while reducing overhead and boosting productivity. Think Databricks/Sagemaker but local and free.
Boson enables engineers and researchers to iterate faster without getting bogged down by infrastructure or tooling complexity.
Stream Torrents Inside the Browser.
BitPlay is a web application built with Go that allows you to stream video content directly from torrents in your browser. It features a clean web UI, support for SOCKS5 proxies, and integration with Prowlarr and Jackett for seamless torrent searching.
Anirra is a completely self-hosted anime watchlist, search, and recommendations app. It allows anime enthusiasts to manage their watchlists, discover new anime, and receive personalized recommendations, all from a single platform.
Free and Open Source Project Management Tool.
Worklenz is a project management tool designed to help organizations improve their efficiency. It provides a comprehensive solution for managing projects, tasks, and collaboration within teams.
Simple dashboard for WireGuard VPN written in Python & Vue.js.
openleaf is a minimalist, browser-based rich text editor that lets you start writing instantly without signup, downloads, or configuration. Just go to any URL and start typing!
Welcome to your whiteboard IDE. Open terminals and start coding right away in your own Ubuntu VM!
Whiteboard as an IDE, draw and code in your browser. pad.ws is a whiteboard app that acts as a dev environment in your browser.
A Dashboard for displaying interactive statistics about your Plex media library.
A modern, feature-rich, databaseless flat-file wiki platform built with Go. Built for simplicity and performance with Markdown. No database, zero maintenance.
Own Your IAM with a Perpetual License. Open source alternative to Auth0 / Firebase Auth.
Authgear is an open-source extensible turnkey solution for all of your consumer authentication needs. Authgear gets you started in 5 minutes with developer-friendly SDKs and a comprehensive portal.
Open-source and local-first Slack and Notion alternative that puts you in control of your data.
Dovel is a SMTP server that sends and receives emails acording to a simple configuration file. It also comes with an optional web interface that you can use to browse your emails. It is designed to be simple and easy to use, and will remain so. Dovel is great because:
unlimited podcast hosting.
ELEMENT.FM is a powerful podcast hosting platform built for creators, offering unlimited hosting, AI-powered tools, and support for Podcasting 2.0 features like Value for Value (V4V) and chapter-level analytics.
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Free, Multi-User PHP File Manager.
FileGator is a free, open-source, self-hosted web application for managing files and folders.
You can manage files inside your local repository folder (on your server's hard drive) or connect to other storage adapters (see below).
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Automate code & data workflows with interactive notebooks. Get rid of scripts, manual steps, and outdated docs. Use Elixir and Livebook to share knowledge, deploy apps, visualize data, run machine learning models, debug systems, and more!