Cool Software Projects

Reladraw is a new open-source diagramming language that gives users full manual control over element placement. Unlike tools with automated layouts, it allows creators to precisely dictate the exact position of every diagram component. The project is currently available for public contribution on GitHub.

A new live stream features an AI decision model named Jev attempting to play the classic game Pokémon Red from start to finish. The artificial intelligence will navigate the retro game and make strategic decisions entirely on its own. Tech enthusiasts can tune in to watch the model's progress in real time.

Hacker Atlas is a new interactive tool that visualizes and maps the topics discussed on Hacker News. The project features a semantic graph and category breakdowns that help users track conversation trends and uncover niche discussions. While the community praises the concept, readers suggest future updates should include historical data graphs and continuous scrolling.

Unspin is a new free daily game and media-literacy quiz recently shared on Hacker News. The platform challenges players to spot hoaxes, verify real headlines, and understand how misleading stories and memes are created.

An indie developer has launched Mathy, a new tool designed to automate mathematical tasks. The application is completely free to use and does not require users to create an account. It is currently available on both iOS and web platforms.

Ekselio is a new local-first tool designed to simplify and improve finance workflows. Following its recent Show HN showcase on Hacker News, the project has already generated positive feedback from the community. Early users have expressed strong enthusiasm and gratitude for the application, showing eagerness to test its capabilities.

A new project showcased on Hacker News introduces a specialized type foundry for generating cursed web fonts, featuring playful creations like Times New Bastard. The tool provides a unique resource for designers and developers looking to incorporate intentionally chaotic typography into their digital projects.

YC W26 startup Whiteboard has launched an open-source IDE and digital canvas designed to help developers visually plan their projects. The platform focuses on thoughtful software design by allowing teams to architect applications before writing code. The project is now open for public use and community contribution on GitHub.

A developer has released an open-source tool that encrypts files into self-decrypting HTML pages, enabling secure offline sharing without requiring any software installation. By embedding OpenPGP signatures and manipulating the HTML structure, the project ensures the files remain fully auditable and can be decrypted using just a standard web browser or bare OpenSSL. While self-decrypting files are not a new concept, this implementation specifically focuses on zero dependencies and reproducible builds.

A new minimalist web project featured on Hacker News provides a virtual koi pond for users to relax and unwind. The site, called Koi.rest, is designed as a digital space to do absolutely nothing and help people regain their mental balance.

A new Hacker News post introduces fixed-point combinators, including the Y combinator, to array languages through a live interactive demo. The accompanying educational materials explore these programming concepts using the famous combinator bird puzzles from Raymond Smullyan's book To Mock a Mockingbird.

Carbon is a newly launched open-source manufacturing ERP, MRP, MES, and QMS platform released under an AGPL-3.0 license. The software allows organizations to maintain complete control over their technology stack by supporting on-premises, VPC, and fully air-gapped deployments. Additionally, it is built on a self-hosted Postgres database to ensure users fully own their underlying data infrastructure.

JevBench is a newly introduced reproducible benchmark that evaluates typed decision models by testing 52 Jev-class systems across 534 distinct decisions. The latest Jev model currently leads the benchmark with the highest overall score, providing developers with a standardized way to compare open-source, self-hostable, and hosted options.

Researchers have introduced SlopShape, a new machine learning model that identifies AI-generated commercial web content by analyzing structural features rather than the text itself. By focusing purely on layout and design patterns, the model can detect automated web pages without relying on semantic analysis. The paper was recently shared on Hacker News as a Show HN project.

Radius is a newly launched community platform introduced on Hacker News that serves as a modern alternative to Meetup.com. The service allows users to discover local events based on shared interests, join nearby activities, or create their own community groups.

A new online competition features a ranked ladder for small neural networks competing in strategy games across weight classes starting at 8 KiB. Developers can train a model, write an adapter, and upload their files to test their AI's efficiency and strategic gameplay.

CUA-S1 is a new open-source System One model designed to scale autonomous computer-use capabilities across multiple operating systems. The project provides developers with open-source drivers, cross-OS fleet management, and comprehensive benchmarks for training, evaluation, and data generation.

Cactus Needle 3 is a new ultra-compact AI foundation model designed for edge devices that matches the extraction capabilities of DeepSeek V4 Flash despite its tiny 8 to 29 MB footprint. The model also outperforms competitors ten times its size in mobile tool calls, marking a significant advancement for resource-constrained smart automation.

A new Show HN project called LiveWorld aggregates all 24/7 live YouTube cameras onto a single interactive globe. The platform allows users to virtually teleport across the world to watch live feeds and chat with other people viewing the same camera.

Snapdrop is a newly featured web tool on Hacker News that enables instant file sharing between devices without requiring any account registration or software installation. This frictionless approach provides users with a quick, effortless, and completely setup-free solution for cross-device file transfers.

A newly launched community tool allows users to share, explore, and compare their personal AI workflows and tool setups. The platform uniquely integrates AI agents to help individuals analyze notes and learn from the evolving practices of others in the tech community.

A new Raspberry Pi project uses an e-ink frame and fully local AI to detect birds by their audio calls in real time. When a bird is identified, the device displays the species as a vintage, hand-cut 1800s illustration, seamlessly blending modern edge computing with classic natural history artwork.

A new Raspberry Pi project features an e-ink frame that uses fully local AI to identify birds by their audio in real time. Upon detecting a bird call, the device displays the corresponding species as a vintage, hand-cut illustration reminiscent of 1800s artwork.

Capsule is a new tool that packages entire web applications, including UI, assets, and SQLite data, into a single portable file. It allows developers to build and share fully functional apps without relying on cloud infrastructure or user accounts, ensuring all data remains local and self-contained.

Hardware enthusiasts are hacking inexpensive 4G LTE hotspots and dongles to create custom texting devices, private cellular network nodes, and headless Android setups. The community is also actively discussing extensive physical modifications to these budget gadgets, particularly focusing on upgrading their internal batteries with modular, high-capacity cells for significantly extended usage.

Pizza Bot is a newly released open-source inbox designed to manage and monitor long-running AI agents operating in the background. Built using DeepAgents and LangGraph, the local-first tool provides developers with a centralized interface for handling autonomous tasks.

A new open-source project called fcbnerd enables macOS users to map and execute custom macros using a Behringer FCB1010 MIDI pedalboard. The tool repurposes the musical foot controller into a hands-free automation device for everyday computer tasks.

Redis City is a new interactive 3D visualization tool that allows developers to explore the internal mechanics of a single Redis instance. By navigating through core components like the command path, data structures, memory allocator, and persistence layers, users can intuitively understand how the database operates under the hood.

Neobrutalism.dev, a collection of neobrutalism-styled UI components built on shadcn/ui, has released a new update. The latest version introduces support for Base UI and includes a brand new color theme for developers.

Developer Antoine Leclair has shared a new open-source project on Hacker News titled Is It Greg? The GitHub repository is currently active and inviting community members to contribute to its ongoing development.