Show HN: Genetic Boids Web Simulation

Show HN: HNRelevant – Add a "related" section to Hacker News

Show HN: I built a more productive way to manage AI chats

Show HN: DoubleMemory – more efficient local-first read-it-later app

Show HN: Web Apps for Python Devs with Auto-Generated UI

Show HN: High-resolution surface analysis with Lidar data

Show HN: GetStack.dev – Track GitHub open-source trends

Show HN: SweepIQ – A simple AI tool to help you learn more, faster

Show HN: Samchika – A Java Library for Fast, Multithreaded File Processing

Show HN: hcker.news – an ergonomic, timeline-based Hacker News front page

Show HN: SQLite JavaScript - extend your database with JavaScript

Show HN: Defuddle, an HTML-to-Markdown alternative to Readability

Show HN: I built a directory for side hustles to help people exit the rat race

Show HN: Curved Space Shader in Three.js (via 4D sphere projection)

Show HN: Pi Co-pilot – Evaluation of AI apps made easy

Show HN: ClipJS – Edit your videos from a PC or phone

Show HN: Confidential computing for high-assurance RISC-V embedded systems

Show HN: A Tiling Window Manager for Windows, Written in Janet

Show HN: Whenish – Plan Group Events in iMessages

Show HN: A Model Context Protocol server for NASA APIs

Show HN: Juvio – UV Kernel for Jupyter

Show HN: nwtb - a site for discovering new music on YouTube

Show HN: Text to 3D simulation on a map (does history pretty well)

Show HN: Evolved.lua – An Evolved Entity Component System for Lua

Show HN: 90s.dev – Game maker that runs on the web

Show HN: rtcollector - A modular, RedisTimeSeries-native observability agent

Show HN: send2kindle – CLI utility to send documents to your Kindle

Show HN: Representing Agents as MCP Servers

Show HN: ComputeLite: Python/R/JavaScript/SQLite in browser

Show HN: 8-Bit Spelling Game I Built for My Daughter Using Claude AI

Show HN: Chat with 19 years of HN

Show HN: SlimImg – Client-side image compression and EXIF editor (no uploads)

Show HN: PolyLia – Learn languages by challenging friends (open beta)

Show HN: A Simple Server to Match Long/Lat to a TimeZone

Show HN: Astra – a new js2exe compiler

Show HN: Infinite Hagakure

Show HN: Goboscript, text-based programming language, compiles to Scratch

Show HN: Hardtime.nvim – break bad habits and master Vim motions

Show HN: I created an tool that creates interactive product demos in 2 minutes

Show HN: Olelo Foil - NACA Airfoil Sim

Show HN: Forge – Secure, Multi-Tenant GitHub Actions Runners on K8s or EC2

Show HN: JavaFactory – IntelliJ plugin to generate Java code

Show HN: I modeled the Voynich Manuscript with SBERT to test for structure

Show HN: A platform to find tech conferences, discounts, and ticket giveaways

Show HN: A web browser agent in your Chrome side panel

Show HN: Buckaroo – Data table UI for Notebooks

Show HN: KeepYard – A free open-source Pocket alternative

Show HN: A MCP server to evaluate Python code in WASM VM using RustPython

Show HN: Windows 98 themed website in 1 HTML file for my post punk band

Show HN: Python Simulator of David Deutsch’s “Constructor Theory of Time”

Show HN: Various ChatGPT Clients Written by Codex

Show HN: A native Hacker News reader with integrated todo/done tracking

Show HN: Vaev – A browser engine built from scratch (It renders google.com)

Show HN: Custom GPT to Discover Industrial Companies in the Benelux Region

Show HN: AI News Source Extractor – Easily Ingest AI News into Notebook LM

Show HN: Job board aggregator for best paying remote SWE jobs in the U.S.

Show HN: Model2vec-Rs – Fast Static Text Embeddings in Rust

Show HN: DockFlow – Switch between multiple macOS Dock layouts instantly

Show HN: Super (YC W18) - Turn company data into answers & agents for your team

Show HN: Generate huge dummy images using drag and drop

Show HN: Lesser Pandas – Data Analysis Library in C++

Show HN: I built an Free AI tool to generate pixel art from text descriptions

Show HN: Bricks – One Click Dashboards from Your Data Using AI

Show HN: Nostria – A peer-to-peer social protocol that avoids centralized relays

Show HN: Free Text-to-Video for Learning Anything(Inspired by 3Blue1Brown)

Show HN: Merliot – plugging physical devices into LLMs

Show HN: BemiDB – Open-source data warehouse with zero-ETL

Show HN: MCP-UI – SDK that embeds interactive UI snippets via MCP

Show HN: I vibe coded a complex trading app

Show HN: KVoiceWalk – Voice cloning for Kokoro TTS using random walk algorithms

Show HN: Trendly AI – Trend detection across 42 languages

Show HN: I built an interactive website to practice English at your own pace

Show HN: FlightsRefund – AI to automate flight refund claims

Show HN: MMDL – A front end for CalDAV tasks and events

Show HN: Dora

Show HN: I built a knife steel comparison tool

Show HN: Replay Iconic HN Stories

Show HN: Visual flow-based programming for Erlang, inspired by Node-RED

Show HN: A highly extensible framework for building OCR systems

Show HN: I made a word puzzles app for improving your English vocabulary

Show HN: Kraa.io – Markdown editor for notes, blogs, chats

Show HN: I made Blueprint for brain health to hit daily peak productivity

Show HN: SQL-tString a t-string SQL builder in Python

Show HN: Solidis – Tiny TS Redis client, no deps, for serverless

Show HN: Find prompts that jailbreak your agent (open source)

Show HN: I built a SaaS that lets you create digital manuals with drag and drop

Show HN: A Wolfenstein3D-like raycaster made in Windows Batch

Show HN: A browser-based tone generator built with the Web Audio API

Show HN: I made an app to create personalized stories for children in 5 minutes

Show HN: TitleBridge - A FinalCut Workflow Plugin

Show HN: Rv, a Package Manager for R

Show HN: AI Baby Monitor – local Video-LLM that beeps when safety rules break

Show HN: I made a 1 minute portfolio website builder for designers and devs

Show HN: Sllm.nvim – Integrate Simon’s LLM cli into Neovim (500 LOC Lua)

Show HN: Workflow Use – Deterministic, self-healing browser automation (RPA 2.0)

Show HN: Fahmatrix – A Lightweight, Pandas-Like DataFrame Library for Java