Show HN: This up votes itself

A meta-experiment where a post on Hacker News is designed to upvote itself.


Show HN: I made an open-source laptop from scratch

A custom-engineered laptop built from scratch and released as an open-source project.

hardware, laptop, open source, engineering

Creating a highly-integrated open-source laptop from scratch. Power in your hands.


Show HN: If YouTube had actual channels

A conceptual redesign of YouTube's interface to emphasize traditional channel structures.


Show HN: A retro video game console I've been working on in my free time

A personal project involving the development of a retro-style video game console.

Software and hardware projects for fun from a guy who loves retro computing


Show HN: Gemini Pro 3 hallucinates the HN front page 10 years from now

An AI-generated simulation of what the Hacker News front page might look like in ten years.


Show HN: Redbean – Single-file distributable web server

A lightweight, single-file web server designed for easy distribution.

web server, infrastructure, developer tool, c


Show HN: Non.io, a Reddit-like platform Ive been working on for the last 4 years

A social platform similar to Reddit that uses a subscription-based model to fund content creators.

social, community, subscription, reddit alternative


Show HN: I may have created a new type of puzzle

A website featuring a novel type of puzzle game.


Show HN: I 3D scanned the interior of the Great Pyramid at Giza

A 3D-scanned interactive digital tour of the interior of the Great Pyramid of Giza.


Show HN: Web Design in 4 minutes

An interactive tutorial designed to teach the fundamentals of web design in under five minutes.

Learn the basics of web design in 4 minutes with this interactive tutorial.


Show HN: I made a site where you practice typing by retyping entire novels

A typing practice platform that allows users to improve their speed by retyping classic literature.

Free Typing Practice | Boost your typing speed while reading great books like Alice in Wonderland, 1984, Dracula, and The Art of War — or import your own!


Show HN: I got laid off from Meta and created a minor hit on Steam

A successful roguelike pachinko-style game launched on Steam.


Show HN: I'm an airline pilot – I built interactive graphs/globes of my flights

A personal project visualizing flight data and history using interactive 3D globes.

James Harding is a British Airways Airbus A350 pilot. Explore his career, flight statistics, and unique 3D globe visualisations of his flying history.


Show HN: Airmash – Multiplayer Missile Warfare HTML5 Game

A browser-based multiplayer missile warfare game built with HTML5.


Show HN: Beeper Mini – iMessage client for Android

A third-party iMessage client for Android that uses reverse-engineered protocols for direct communication.

Get the most popular messaging services, all in a single app. WhatsApp, Signal, Instagram, Telegram, and more.


Show HN: Can’t afford Bloomberg Terminal? No prob, I built the next best thing

An open-source financial terminal tool designed as an alternative to the Bloomberg Terminal.

finance, trading, stocks, developer tool

Contribute to DidierRLopes/GamestonkTerminal development by creating an account on GitHub.


Show HN: GPT-4-powered web searches for developers

A developer-focused search engine that integrates GPT-4 to provide cited technical answers.


Show HN: I built a Rotten Tomatoes-style platform for durable products

A review platform dedicated to identifying and rating durable, long-lasting consumer products.


Show HN: Meteor, a realtime JavaScript framework

A full-stack JavaScript framework designed for building real-time web applications.


Show HN: Obsidian Canvas – An infinite space for your ideas

A feature for the Obsidian note-taking app that provides an infinite canvas for brainstorming and diagramming.

productivity, notes, canvas, brainstorming

Obsidian Canvas gives you infinite space to research, brainstorm, diagram, and lay out your ideas.


Show HN: 40k HN comments mentioning books, extracted using deep learning

A web tool that extracts and displays Hacker News comments mentioning specific books using deep learning.

data, books, hacker news, nlp, visualization

Thinking, Fast and Slow - with 523 comments from the Hacker News community


Show HN: I'm building an open-source Amazon

A suite of open-source e-commerce tools designed to provide decentralized alternatives to traditional marketplace infrastructure.

ecommerce, opensource, marketplace, business, logistics


Show HN: Show HN

A placeholder or test post for the Show HN platform.


Show HN: Portable Secret – How I store my secrets and communicate privately

A guide and methodology for storing secrets and communicating privately without requiring specialized software.

privacy, security, encryption, secrets, guide


Show HN: Tetris in a PDF

A functional implementation of the game Tetris built entirely within a PDF file using JavaScript.


Show HN: Bel

A programming language created by Paul Graham.


Show HN: 3 years and 1M users later, I just open-sourced my "Internet OS"

A self-hostable, open-source desktop environment that runs in the browser, acting as an 'Internet OS'.

🌐 The Internet Computer! Free, Open-Source, and Self-Hostable. - HeyPuter/puter


Show HN: Sorting Two Metric Tons of Lego

A blog post detailing the process and engineering behind sorting two metric tons of Lego bricks.


Show HN: Looptap – A minimal game to waste your time

A minimal browser-based game designed for casual play.

NextGenTechFocus delves into AI advancements, wearable tech, VR impacts, and innovative tools transforming supply chains, retail, and legal practices.


Show HN: SHA-256 explained step-by-step visually

An interactive educational website that explains the SHA-256 cryptographic algorithm step-by-step.

crypto, education, sha256, security, tutorial

Sha256 algorithm explained online step by step visually


Show HN: Wave function collapse algorithm

An implementation of the Wave Function Collapse algorithm for procedural content generation.

algorithm, procedural, graphics, games, opensource

Bitmap & tilemap generation from a single example with the help of ideas from quantum mechanics - mxgmn/WaveFunctionCollapse


Show HN: Imba – I have spent 7 years creating a programming language for the web

A full-stack programming language that compiles to JavaScript, designed to improve web development productivity.

language, web, javascript, compiler, productivity


Show HN: Spot the Drowning Child

An educational site designed to teach people how to recognize the signs of a drowning person.

Can you spot the drowning child in this crowded wave pool? To the untrained eye, drowning looks like swimming. The Instinctive Drowning Response is frequently missed, even by people nearby.


Show HN: Make your site’s pages instant in one minute

A library that preloads pages when a user hovers over a link, making navigation feel instantaneous.

performance, web, ux, optimization, library

Make your site’s pages instant in 1 minute and improve your conversion rate by 1%.


Show HN: I built an app to stop me doomscrolling by touching grass

A mobile app that uses computer vision to verify the user is touching grass before allowing access to distracting apps.

productivity, mobile, ai, wellbeing, ios


Show HN: Lofi.cafe

A curated web platform providing lofi music streams for focus and relaxation.

Lofi music streams for studying, working, and relaxing.


Show HN: Privacy-focused, ad-free, non-tracking torrent search engine

A torrent search engine focused on privacy, ad-free browsing, and no tracking.


Show HN: We built an end-to-end encrypted alternative to Google Photos

An end-to-end encrypted photo storage and backup service designed as a private alternative to Google Photos.

privacy, encryption, photos, cloud, backup


Show HN: Six Degrees of Wikipedia

A tool that calculates the shortest path between two Wikipedia articles based on hyperlinks.

Find the shortest hyperlinked paths between any two pages on Wikipedia.


Show HN: Homebrew 6.0.0

A major update to the Homebrew package manager for macOS and Linux, introducing security and performance improvements.

homebrew, macos, linux, package-manager, devops

Today, I’m proud to announce Homebrew 6.0.0. The most significant changes since 5.1.0 are a new tap trust security mechanism, the new faster, smaller, default internal Homebrew JSON API, sandboxing on Linux, better defaults informed by our user survey, many brew bundle improvements, improved performance and initial support for macOS 27 (Golden Gate).


Show HN: Make a programmable mirror

An Android application designed to power a programmable smart mirror.

android, smart-mirror, iot, home-automation

Android application powering the mirror in my house - HannahMitt/HomeMirror


Show HN: Alacritty, a GPU-accelerated terminal emulator written in Rust

A GPU-accelerated terminal emulator written in Rust.

Initial source-only release of Alacritty


Show HN: Boring Report, a news app that uses AI to desensationalize the news

A news application that uses AI to rewrite sensationalist headlines and articles into factual summaries.

Boring Report: News by AI - Information Without the Noise


Show HN: A friend and I spent 6 years making a simulation game, finally released

A complex simulation game focused on industrial logistics and management.


Show HN: I created an After Effects alternative

A web-based motion design and video editor that serves as an alternative to Adobe After Effects.

web-app, motion-design, video-editor, creative

Pikimov is a free web motion design editor


Show HN: Trading cards made with e-ink displays

Custom trading cards featuring e-ink displays that can be updated dynamically.

Introducing Wyldcard, a new paradigm for tabletop gaming, trading cards which can magically change as you play.


Show HN: InstantDB – A Modern Firebase

A client-side database designed to simplify building real-time, collaborative applications.

database, real-time, backend, developer-tools

Instant is the best backend for AI-coded apps. You get auth, permissions, storage, presence, and streams — everything you need to ship apps your users will love. - instantdb/instant


Show HN: I made a web game called Almost Pong

A minimalist web game where all assets and sounds are generated via code.

web-game, javascript, minimalist, gaming

Press space (or tap the screen) to make the ball jump and hit the paddles for as long as possible.


Show HN: Clippy – 90s UI for local LLMs

A user interface for local LLMs featuring a 90s-style aesthetic.


Show HN: I built a(nother) house optimized for LAN parties

A residential house build optimized for hosting LAN parties, including netboot management.

We built a(nother) house optimized for LAN Parties.


Show HN: A visual guide to the most popular CSS properties

A visual reference guide for CSS properties with animated examples.

css, web-development, reference, learning

CSS Reference is a free visual guide to CSS. It features the most popular properties, and explains them with illustrated and animated examples.


Show HN: I wrote my own RTS game engine in C

An RTS game engine written in C using OpenGL.

An OpenGL RTS game engine written in C. Contribute to eduard-permyakov/permafrost-engine development by creating an account on GitHub.


Show HN: Get Paid to Build Your Next Side Project

A platform connecting developers with opportunities to get paid for building side projects.

side-projects, freelance, development, jobs


Show HN: New AI edits images based on text instructions

A Python library integrating InstructPix2Pix for image editing via text instructions.

Pythonic AI generation of images and videos. Contribute to brycedrennan/imaginAIry development by creating an account on GitHub.


Show HN: Monica, an open-source CRM to manage friends and family

A personal CRM designed to help users manage relationships with friends and family.

crm, personal, relationships, self-hosted

Monica lets you remember everything about your loved ones.


Show HN: Open Hunt – an open and community-run alternative to Product Hunt

A community-driven alternative to Product Hunt.

community, product-hunt, discovery, tech


Show HN: Obsidian – A knowledge base that works on local Markdown files

A knowledge base application that stores notes as local Markdown files.

markdown, note-taking, knowledge-management, productivity

The free and flexible app for your private thoughts.


Show HN: RoughJS – Create hand-drawn graphics using JavaScript

A lightweight JavaScript library for rendering graphics with a hand-drawn, sketchy aesthetic.

Rough.js is a light weight javascript library that lets you draw graphics with a hand-drawn, sketchy, appearance.


Show HN: I taught my little brother JS, and he made this videogame in a week

A simple web-based video game created as a learning project.


Show HN: My wife is pregnant; naturally I made a baby-name app to prepare

A web application designed to help parents-to-be choose baby names.

baby-names, parenting, web-app, lifestyle


Show HN: I'm 12, learning JS, and wrote Wolfram's cellular automaton in Node

A JavaScript implementation of Wolfram's cellular automata written in Node.js.

javascript, node, math, simulation, education


Show HN: Web browser to help programmers think clearly

A web browser designed to help programmers maintain focus and think clearly.


Show HN: Markov chains explained visually

An interactive visual explanation of Markov chains.

math, visualization, education, statistics


Show HN: Heynote – A dedicated scratchpad for developers

A scratchpad application for developers featuring a block-based note organization system.

notes, developer, productivity, scratchpad


Show HN: I made a puzzle game that gently introduces my favorite math mysteries

A puzzle game designed to interactively explain various mathematical concepts.


Show HN: SHA-256 Animation

A terminal-based animation demonstrating the SHA-256 hashing algorithm.

Animation of the SHA-256 hash function in your terminal. - in3rsha/sha256-animation


Show HN: OneBody Church Directory software I've been hacking on for 7 years

A private member portal and directory software built for churches using Ruby on Rails.

private member portal for churches, built with Ruby on Rails - seven1m/onebody


Show HN: htmz – a low power tool for HTML

A lightweight tool for enhancing HTML functionality.


Show HN: I got hacked, felt paranoid, made an app – GlassWire

A personal firewall and network monitoring application for desktop computers.

GlassWire is a modern personal firewall and network monitor with over 53 million downloads. Download GlassWire free!


Show HN: Generating fantasy maps – an interactive exploration

An interactive web-based exploration of procedural fantasy map generation.


Show HN: Workout.lol – a web app to easily create a workout routine

A web application that generates workout routines based on available equipment and fitness goals.

A small web application to create workouts based on your available equipment and the muscles you want to train.


Show HN: I'm 48 and finally learning how to be a game developer

A mobile game developed by a first-time developer.


Show HN: Tinder but it's only pictures of my wife and I can only swipe right

A photo-swiping application for viewing and organizing personal photos of loved ones.

Swipe through your favorite photos of your loved ones. Create albums, share memories, and spread love - one swipe at a time.


Show HN: I built a hardware processor that runs Python

A custom hardware processor designed to execute Python programs directly without a traditional interpreter.

Explore how RunPyXL brings sub-microsecond GPIO control to Python. Built for real-time applications where latency and determinism matter.


Show HN: I made a modern web UI for Wikipedia

A redesigned, modern web interface for browsing Wikipedia.

A beautiful, clean, modern web UI for Wikipedia. Enhance your Wikipedia experience with a redesigned look, new features and customization.


Show HN: A basketball hoop to maximize shots that go in [video]

A mechanical engineering project to optimize basketball hoop design for higher success rates.

sports, engineering, physics, basketball


Show HN: I made a privacy-first minimalist Google Analytics

A privacy-focused web analytics platform designed as a minimalist alternative to Google Analytics.


Show HN: Browsh – A modern, text-based browser

A modern web browser that renders interactive content directly in the terminal.

A fully interactive, realtime and modern browser rendered to TTY


Show HN: 18 Words

A daily word puzzle game where users solve 18 scrambled words within a time limit.

Play 18 Words: a fast daily word challenge. Solve each scrambled word before the timer runs out and see how many of 18 you can score.


Show HN: I made a website to find best bus seat to avoid the sun while traveling

A web tool that calculates the best bus seat to avoid direct sunlight based on route and time.

Sit in Shade - Discover the optimal seat to stay in the shade during your journey. Sit In Shade provides real-time sun exposure data and route visualization.


Show HN: Beeper – All Your Chats in One App

A messaging aggregator that combines multiple popular chat services into a single interface.

messaging, chat, productivity, aggregator

Get the most popular messaging services, all in a single app. WhatsApp, Signal, Instagram, Telegram, and more.


Show HN: Ten years of running every day, visualized

An interactive dashboard visualizing ten years of daily running data from GPX files.

running, fitness, visualization, dashboard, data

A celebration of consistency, discipline, and the pursuit of movement


Show HN: This Word Does Not Exist

An AI-powered tool that uses GPT-2 to generate non-existent English words.

This Word Does Not Exist uses an artificial intelligence model named GPT-2 to invent new English words.


Show HN: XKCD-inspired StackSort

A humorous implementation of a sorting algorithm based on an XKCD comic.


Show HN: EdgeDB 1.0

A production-ready database system designed for modern application development.

Today, after years of research, development, and refinement EdgeDB graduates to a production-ready database. We are very proud to announce EdgeDB 1.0.


Show HN: Warp, a Rust-based terminal

A modern, Rust-based terminal emulator featuring AI-powered command generation and collaborative tools.

A modern AI terminal for coding with agents. Run Oz, Claude Code, Codex, and Gemini CLI with fine-grained control — locally or in the cloud. Free download.


Show HN: Performative-UI – A react component library of design tropes

A satirical React component library designed to mimic design tropes used to signal funding success.

Components that signal how oversubscribed your funding round is.


Show HN: I made an alternative platform for professional profiles

A platform for hosting and sharing professional profiles and resumes.


Show HN: Hacker News user blogroll

A curated, searchable list of personal blogs maintained by Hacker News users.


Show HN: Sublime Merge – A Git client from the makers of Sublime Text

A high-performance Git GUI client developed by the creators of Sublime Text.

Discover a powerful Git GUI Client for Mac, Windows and Linux, from the makers of Sublime Text. Line-by-line Staging. Commit Editing. Unmatched Performance.


Show HN: Unsure Calculator – back-of-a-napkin probabilistic calculator

An online calculator designed for performing probabilistic math with uncertain inputs.

The Unsure Calculator is an online tool that lets you calculate with numbers you’re not sure about.


Show HN: iFixit created a new USB-C, repairable soldering system

A high-performance, repairable USB-C soldering iron and power hub.

soldering, hardware, repair, electronics

Like many people who solder regularly, I decided years ago to upgrade from a basic iron and invest in a soldering station. My RadioShack digital station has served me well for the better part of 20…


Show HN: Wealthfolio: Private, open-source investment tracker

A private, local-first desktop application for tracking investment portfolios.

Wealthfolio is an open-source, private, and local-first portfolio tracker. Keep your financial data on your device, with optional cloud sync via Connect.


Show HN: I built an AI that turns GitHub codebases into easy tutorials

An AI tool that analyzes GitHub repositories to generate educational tutorials.

ai, github, tutorial, coding, documentation

Pocket Flow: Codebase to Tutorial. Contribute to The-Pocket/PocketFlow-Tutorial-Codebase-Knowledge development by creating an account on GitHub.


Show HN: I spent 6 years building a ridiculous wooden pixel display

A physical 1000-pixel display that allows users to collaboratively draw images over long periods.

The world's most impractical 1000-pixel display and anyone in the world can draw on it


Show HN: I wrote a book about Go

A book providing educational lessons on the Go programming language.


Show HN: Markwhen: Markdown for Timelines

A tool for creating and managing timelines using Markdown syntax.

markdown, timeline, productivity, visualization


Show HN: Your Social Media Fingerprint (maybe NSFW)

A security tool demonstrating how websites can detect which social media platforms a user is logged into.

Without your consent most major web platforms leak whether you are logged in. This allows any website to detect on which platforms you're signed up. Since there are lots of platforms with specific demographics an attacker could reason about your personality, too.


Show HN: Primitive Pictures

A library for reproducing images using geometric primitives like triangles and circles.

Reproducing images with geometric primitives. Contribute to fogleman/primitive development by creating an account on GitHub.


Show HN: A web debugger an ex-Cloudflare team has been working on for 4 years

A web debugging tool that allows non-engineers to capture and report reproducible bug tickets.

debugging, productivity, web, collaboration