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AddGamify Your Life.
Habitica is an open-source habit-building program that treats your life like a role-playing game. Level up as you succeed, lose HP as you fail, and earn Gold to buy weapons and armor!
Gamified habit tracker: collect coins by completing habits, and redeem for rewards.
HabitTrove is a gamified habit tracking application that helps you build and maintain positive habits by rewarding you with coins, which you can use to exchange for rewards.
Pro Bono Bug Hunting & Volunteer Hackers. Helping those who help.
Volunteer hackers to help nonprofits and NGOs strengthen their digital security.
HackerOS is a Linux distribution based on Debian (testing), created for ordinary users, gamers, cybersecurity enthusiasts, and power-users.
By default, HackerOS has the standard Debian kernel, unless we are talking about the gaming edition, which has the Liquorix kernel built-in in the old version, and the XanMod LTS kernel in the new version.
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Realtime collaborate notes. Using markdown syntax. On all platforms.
Collaborative Markdown Knowledge Base. Real-time collaborate on project team technical personal documentation in markdown. Capture fleeting ideas and formalize tribal knowledge.
CodiMD lets you collaborate in real-time with markdown. Built on HackMD source code, CodiMD lets you host and control your team's content with speed and ease.
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Welcome to Hackropole. This platform allows you to replay the challenges of the France Cybersecurity Challenge all year round to discover and train in various areas of cybersecurity.
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Best way to boost your cybersecurity skills
Tailored cybersecurity upskilling platform for all levels, catering to beginners and pros. Expertly designed with custom content to boost cybersecurity skills.
The Home Assistant Community Store (HACS) is a custom integration that provides a UI to manage custom elements in Home Assistant.
The Apache® Hadoop® project develops open-source software for reliable, scalable, distributed computing.
The Apache Hadoop software library is a framework that allows for the distributed processing of large data sets across clusters of computers using simple programming models. It is designed to scale up from single servers to thousands of machines, each offering local computation and storage. Rather than rely on hardware to deliver high-availability, the library itself is designed to detect and handle failures at the application layer, so delivering a highly-available service on top of a cluster of computers, each of which may be prone to failures.
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Hajimari is a beautiful & customizable browser startpage/dashboard with Kubernetes application discovery.
An embeddable, lightweight, secure, high-performance JavaScript engine.
Hako is a embeddable, lightweight, secure, high-performance JavaScript engine. It is a fork of PrimJS; Hako has full support for ES2019 and later ESNext features, and offers superior performance and a better development experience when compared to QuickJS.
Understand. Improve. Code.
AST Metrics is a blazing-fast static code analyzer that works across programming languages.. It empowers you to gain deep insights into your code structure, identify potential problems early on, and improve code quality. Leveraging the efficiency of Go, AST Metrics delivers exceptional performance for large codebases.
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Protect your online privacy and rights by learning about dark patterns and unethical designs. Stay informed and avoid manipulation in the digital world.
Halloy is an open-source IRC client written in Rust, with the iced GUI library. It aims to provide a simple and fast client for Mac, Windows, and Linux platforms.
A small self-hosted web UI to manage an HAProxy configuration, obtain Let's Encrypt certificates, and run an active-passive cluster with Keepalived on a shared virtual IP.
Own your book, build your world. A story editor.
Free and open source. Works offline, on every device you own, and every chapter stays a plain text file on your own disk.
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Ruby apps that grow with you
Hanami is a Ruby framework designed to keep your code organised and maintainable.
Separated concerns, explicit business logic, and modular architecture give you the foundation to build apps that remain a pleasure to work on even as they grow large.
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Handmade Hero is an ongoing project to create a complete, professional-quality game accompanied by videos that explain every single line of its source code.
A gallery of hand-drawn arrows and other design resources as SVGs that can be easily copied as SVG code or React components for use in your projects.
speak into any text field.
A free, open source, and extensible speech-to-text application that works completely offline.
Handy is a cross-platform desktop application built with Tauri (Rust + React/TypeScript) that provides simple, privacy-focused speech transcription. Press a shortcut, speak, and have your words appear in any text field—all without sending your voice to the cloud.
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In this tutorial, we will build a simple RESTful API application using Symfony and the latest PHP 8.
Claude Code Mobile Client. Mobile and Web client for Claude Code, with realtime voice, encryption and fully featured.
Spawn and control multiple Claude Codes in parallel. Happy Coder runs on your hardware, works from your phone and desktop, and costs nothing. Open source.
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Haptic feedback for the mobile web. Supports React, Vue, and Svelte.
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Securing containers, one scan at a time.
Harbor Guard is a comprehensive container security scanning platform that provides an intuitive web interface for managing and visualizing security assessments of Docker images.
Social discovery for serious book lovers. Track every book, share them with the world (or don't) and find new life-changing reads.
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Secure infrastructure in minutes. Hardening Active Directory and Office 365.
Agentic Integrity Foundation for Coding Agents. Let the agents run.
Harden's custom cybersecurity models run on your devices, judge every action a coding agent is about to take, and stop the dangerous ones before they execute.
Hardhat is a development environment to compile, deploy, test, and debug your Ethereum software. Hardhat is an Ethereum development environment for professionals. It facilitates performing frequent tasks, such as running tests, automatically checking code for mistakes or interacting with a smart contract. Check out the plugin list to use it with your existing tools.
50+ Free Online Hardware Tests - Monitor, Mouse, Keyboard & Audio. Test every device in your setup. Fast, free, and online.
Professional-grade checks for displays, keyboards, mice, audio, controllers, gaming, and system performance. 50+ tools, all free in your browser.
HAR Sanitizer. Sanitizing and securing HAR files with precision.
HAR files are intricate blueprints of web interactions, elegantly capturing a web session's every nuance. In the domain of web diagnostics, these files stand as critical repositories, meticulously cataloging everything from headers to payload content. However, their granular details also make them susceptible to potential data exposures.
Sharrre is a jQuery plugin that allows you to create nice widgets sharing for Facebook, Twitter, Google Plus (with PHP script) and more.
Open-source hyperconverged infrastructure.
The open source hyperconverged infrastructure (HCI) solution for a cloud native world. Harvester is a modern, open, interoperable, hyperconverged infrastructure (HCI) solution built on Kubernetes. It is an open-source alternative designed for operators seeking a cloud-native HCI solution. Harvester runs on bare metal servers and provides integrated virtualization and distributed storage capabilities. In addition to traditional virtual machines (VMs), Harvester supports containerized environments automatically through integration with Rancher. It offers a solution that unifies legacy virtualized infrastructure while enabling the adoption of containers from core to edge locations.
AI Model Security Database.
Track jailbreaks, prompt injections, and security incidents across all major AI models. The question is not if - it's when.
World's fastest and most advanced password recovery utility.
hashcat is the world's fastest and most advanced password recovery utility, supporting five unique modes of attack for over 300 highly-optimized hashing algorithms. hashcat currently supports CPUs, GPUs, and other hardware accelerators on Linux, Windows, and macOS, and has facilities to help enable distributed password cracking.
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Online WPA WPA2 NTLM MD5 DESCRYPT MD5CRYPT Password Cracker. Crackq is an online distributed GPU-accelerated password cracker designed to help penetration testers and network auditors identify weak passwords. It supports a number of hash types and we are actively adding new algorithms. There are no delays associated with manual submissions and payment processing. The results are emailed automatically as soon as the hash is processed.
HashLips is a place where NFT enthusiasts and programmers gather together to collect, code, trade and talk about anything and everything regarding programming and blockchain technology! We come together to have fun, educate and build on the blockchain. Check us out on YouTube, Twitter, Discord and Telegram.
JS performance - Dev tool. Benchmark your JS snippets for an optimized performance.
The Distributed Task Queue for More Resilient Web Applications
Hatchet is a distributed, fault-tolerant task queue which replaces traditional message brokers and pub/sub systems - built to solve problems like concurrency, fairness, and durability.
Hatchet replaces difficult to manage legacy queues or pub/sub systems so you can design durable workloads that recover from failure and solve for problems like concurrency, fairness, and rate limiting. Instead of managing your own task queue or pub/sub system, you can use Hatchet to distribute your functions between a set of workers with minimal configuration or infrastructure:
Check your IP reputation.
Check whether your public IP has been observed in a residential proxy network, and understand what to do next.
Check if your email address has been exposed in a data breach.
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The Production-Ready Open Source AI Framework.
AI orchestration framework to build customizable, production-ready LLM applications. Connect components (models, vector DBs, file converters) to pipelines or agents that can interact with your data. With advanced retrieval methods, it's best suited for building RAG, question answering, semantic search or conversational agent chatbots.
Haystack Editor combines the simplicity of a code editor with a canvas UI that makes it easier to understand code at a glance It provides comprehensive code editing, navigation, and understanding support along with lightweight debugging, a rich extensibility model, and lightweight integration with existing tools.
Goauld is a post-exploitation and remote access tool designed for use in restricted environments.
During penetration tests, operators may be required to work from a client-provided laptop behind VPNs, authenticated egress proxies, or restrictive network controls. In other cases, gaining remote code execution on a system still requires establishing a stable and fully interactive access channel.
Goauld solves these problems by providing a tunneling and access framework that allows operators to interact with remote agents through multiple transport protocols while maintaining a secure SSH-based architecture.
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🏦 The neobank built for nonprofits.
HCB is an open source, safe, and easy-to-use fiscal sponsorship platform for hackathons, Hack Clubs, robotic teams and more. We use it to run our fiscal sponsorship program, we provide high schoolers with a 501(c)(3) status-backed restricted fund for their organization. Behind the scenes, HCB is a Ruby on Rails application (learn more by reading our documentation).
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Telehealth Open Source software. Simple & Secure remote consultations solution.
A Free, Modern Toolbox Built for Developers. 200+ tools builtin with more to come. Boosts your productivity with smart search, type detection, and hotkeys. Let it be your best companion in daily dev tasks.
A Kubernetes web UI that is fully-featured, user-friendly and extensible.
Headlamp was created to blend the traditional feature set of other web UIs/dashboards (i.e., to list and view resources) with added functionality.
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The definitive tree component for the Web.
Super-easy integration of complex tree components into React. Supports ordered and unordered drag-and-drop, extensive keybindings, search, renaming and more. Fully customizable and accessible. Headless Tree is the official successor for React Complex Tree.
Unstyled, fully accessible UI components.
Completely unstyled, fully accessible UI components, designed to integrate beautifully with Tailwind CSS.
Compress tool outputs, logs, files, and RAG chunks before they reach the LLM. 60-95% fewer tokens, same answers. Library, proxy, MCP server.
Headroom is the context optimization layer for LLM applications. Compress tool outputs, DB results, file reads, and RAG results before they reach the model. Same answers, fraction of the tokens.
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The Context Optimization Layer for LLM Applications
Compress everything your AI agent reads. Same answers, fraction of the tokens. Compress tool outputs, logs, files, and RAG chunks before they reach the LLM. 60-95% fewer tokens, same answers. Library, proxy, MCP server.
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An open source, self-hosted implementation of the Tailscale control server.
Headscale aims to implement a self-hosted, open source alternative to the Tailscale control server. Headscale's goal is to provide self-hosters and hobbyists with an open-source server they can use for their projects and labs. It implements a narrow scope, a single Tailnet, suitable for a personal use, or a small open-source organisation.
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- Ep 13: Cyberdeck Cyberwhat Selfhosted VPN networks and is Wireguard Hard @ Linux Prepper (Episode 13 Shownotes - Cyberdeck Cyberwhat and is Wireguard Hard @ Learning Together).
- Déployez un VPN avec Headscale : une version auto-hébergée du serveur Tailscale @ IT-Connect :fr:.
- Tailscale : VPN mesh WireGuard et control plane souverain @ DevSecOps :fr:.
- I replaced Tailscale's control server with Headscale, and my devices didn't notice @ XDA.
- Linux Fu: Heads Or Tails For VPN @ Hackaday.
Simple and Effective Cron Job Monitoring.
Open-source cron job and background task monitoring service, written in Python & Django.
Healthchecks is a cron job monitoring service. It listens for HTTP requests and email messages ("pings") from your cron jobs and scheduled tasks ("checks"). When a ping does not arrive on time, Healthchecks sends out alerts.
Ideas grow better together.
HedgeDoc (formerly known as CodiMD) is an open-source, web-based, self-hosted, collaborative markdown editor.
You can use it to easily collaborate on notes, graphs and even presentations in real-time. All you need to do is to share your note-link to your co-workers and they’re ready to go.
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yet another commenting system. Heex was designed from the ground up to be easily installed and used to get your comment section seamlessly added to your app or website.