Cool Software Projects

Janus is a new Go-based API router for AI models that utilizes a Vulkan backend to execute GGUF files. It provides a versatile solution for local AI inference by supporting GPUs from AMD, Intel, and Nvidia.

A new open-source model routing tool for coding agents has been introduced, claiming to deliver top-tier performance comparable to leading models like Astra by dynamically routing tasks to faster alternatives like Deepseek. Community discussions highlight its token efficiency and note that it supports enterprise workflows by seamlessly integrating with all underlying LLMs utilized by GitHub Copilot.

Yantra is a newly released LALR(1) parser generator for C++ that streamlines compiler design by combining multiple tools into one. It efficiently handles lexer, parser, and abstract syntax tree generation within a single unified application.

Lathoa is a new math app for children that features an AI robot designed to intentionally make calculation errors. Kids are tasked with catching and correcting these mistakes to practice essential critical thinking skills. The app aims to prepare the next generation for an era where verifying AI outputs is a crucial ability.

A new browser-based application provides a real-time, real-scale visualization of the solar system featuring 526,000 asteroids and all currently tracked satellites. The project utilizes WebGL2 and web workers to render daily updated orbital data from NASA and CelesTrak, allowing users to track celestial bodies and spacecraft using an interactive time slider. Community feedback has prompted the developer to quickly implement improvements for zooming and mobile compatibility.

A new interactive 3D model of the historic Enigma machine allows users to explore its intricate rotor mechanisms and electrical circuits. This educational project provides a hands-on way to understand the inner workings of the famous cryptographic device.

A new open-source project named NSL brings Windows Subsystem for Linux functionality directly to native Linux hosts by allowing users to run lightweight, WSL-style machines within their existing environments. This tool provides developers with isolated testing instances without the performance overhead of traditional virtual machines.

A new project called HN.watch enhances the Hacker News front page by pairing every story with a short video explainer. This tool provides a multimedia alternative for users who prefer to quickly grasp the context of trending tech discussions through visual summaries rather than reading headlines.

A new free browser game called Stickman transforms any website URL into a destructible pixel-art level using its text, images, and layout elements. Players can fight their way through these generated environments either solo or with friends.

Lofi Cities is a free, browser-based platform that generates endless lofi music accompanied by pixel-art nighttime scenes of major global cities. Users can instantly access this ambient audio and visual experience without needing to create an account or download any software.

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.