Show HN: I made Logic gates using CSS if() function

Show HN: BreakerMachines – Modern Circuit Breaker for Rails with Async Support

Show HN: Virby, a vfkit-based Linux builder for Nix-Darwin

Show HN: a community for collaborating on sideprojects

Show HN: Lush extends Lua with string interpolation and other useful features

Show HN: AirBending – Hand gesture based macOS app MIDI controller

Show HN: Spots – Map of good places to work remotely for the day

Show HN: BunkerWeb – the open-source and cloud-native WAF

Show HN: I AI-coded a tower defense game and documented the whole process

Show HN: News Alert - Real-time global news monitoring with keyword alerts

Show HN: I Built a Minimal AI Chat app with Local Storage and Advanced Research

Show HN: A cross-platform terminal emulator written in Java

Show HN: MCP-123, a 2-line MCP server/client (Windows-friendly)

Show HN: Fast Thermodynamic Calculations in Python

Show HN: I Asked ChatGPT to Rebuild My Canvas Radial Menu in SVG

Show HN: Quotatious – A Wordle and hangman inspired game

Show HN: HomeBrew HN – Generate personal context for content ranking

Show HN: From Photos to Positions: Prototyping VLM-Based Indoor Maps

Show HN: Tinykv – Minimal file-backed key-value store for Rust

Show HN: ASCII Fireworks

Show HN: Certimon – Free Telegram bot to monitor SSL certificate expiry

Show HN: A continuation of IRS Direct File that can be self-hosted

Show HN: Jobs by Referral: Find jobs in your LinkedIn network

Show HN: Kuvasz – an open-source uptime and SSL monitoring service

Show HN: CSS generator for a high-def glass effect

Show HN: I built sinkedin – a LinkedIn but for flauting failures and screwups

Show HN: An AI tool that lets you interact with your terminal in plain English

Show HN: Distapp. Manage and distribute Android, iOS and Desktop app

Show HN: I built the tool I wished existed for moving Stripe between countries

Show HN: I rewrote my notepad calculator as a local-first app with CRDT syncing

Show HN: Spegel, a Terminal Browser That Uses LLMs to Rewrite Webpages

Show HN: Core – open source memory graph for LLMs – shareable, user owned

Show HN: Mochia, a virtual pet browser game, built with Rust, SolidJS, Postgres

Show HN: Dstpierre/tpl a tiny lib making Go's templates more tolerable

Show HN: Recivo – Receive Emails Programmatically

Show HN: HackerNewt – Breadth-first exploring HN client for iOS

Show HN: Opasm, an Assembly REPL

Show HN: Built a lovable clone to see what makes agentic apps tick

Show HN: TokenDagger – A tokenizer faster than OpenAI's Tiktoken

Show HN: A Dockerized Linux Mirror Server for Arch and Ubuntu

Show HN: Octelium – FOSS Alternative to Teleport, Cloudflare, Tailscale, Ngrok

Show HN: New Ensō – first public beta

Show HN: We made a tool to reduce echo chambers on social media

Show HN: I built a mindmap-like, non linear tutor-supported interface for papers

Show HN: Claude Code History Viewer for macOS

Show HN: Exceptional free templates, component libraries and boilerplates

Show HN: Flint – Write code your way while ensuring remote consistency

Show HN: Go-nagini fluent wrapper for Cobra

Show HN: Code Cause – Online community building solutions for the greater good

Show HN: I Turned PG's "How to Get Startup Ideas" into an Interactive Course

Show HN: Dumb STT/diction script for sway-Linux

Show HN: Piano Trainer – Learn piano scales, chords and more using MIDI

Show HN: We're two coffee nerds who built an AI app to track beans and recipes

Show HN: Golang Challenges: Learn and Practice (See Demo)

Show HN: Browse Netflix and Prime catalogs by country, with multilingual support

Show HN: Ncrypt – Query encrypted files privately with FHE

Show HN: I Built a Pocket OS with JavaScript, Electron, and Gemini

Show HN: A stupid simple barely S3 compatible file server

Show HN: Puteron, Systemd Competitor

Show HN: Local LLM Notepad – run a GPT-style model from a USB stick

Show HN: Refractive JavaScript Glass

Show HN: ToplingDB - A Persistent Key-Value Store for External Storage

Show HN: Private real-time dictation app for Mac

Show HN: Peer. – The First Subscription-Based Social Network

Show HN: Hands on tutorial for open source contribution

Show HN: Dhansishtha-2.0-preview – First Intermediate Reasoning model

Show HN: I built a VPN management UI for my non-technical family

Show HN: I made the social deduction board game "Avalon" playable online

Show HN: Sharpe Ratio Calculation Tool

Show HN: Built email parsing for booking confirmations for my travel app – Aruko

Show HN: C.O.R.E – Opensource, user owned, shareable memory for Claude, Cursor

Show HN: SteadyText: Deterministic LLMs: Same input → same output, every time

Show HN: A browser extension to control Google's Random Number Generator

Show HN: A tool to benchmark LLM APIs (OpenAI, Claude, local/self-hosted)

Show HN: KLogger – Quick CLI to grab all deployment logs from a K8s namespace

Show HN: RingtoneSmartKit – Kotlin Library for Android Ringtones

Show HN: Bookmark and organise your mobile links with ease with this free app

Show HN: A local secrets manager with easy backup

Show HN: I made a Chrome extension to export web element to code

Show HN: Attach Gateway – one-command OIDC/DID auth for local LLMs

Show HN: Get off your a** and do push-ups

Show HN: Issue Duration Labeler – a GitHub Action that labels issue by age

Show HN: Kosign – Cold storage vaults with social recovery

Show HN: Guide so you can clean up all your Node Versions

Show HN: We wasted 12K on ads so we build this

Show HN: Generate 'Cooking For Engineers' style recipe cards

Show HN: Desktop Audio Proxy – Bypass CORS for Tauri/Electron Audio Streaming

Show HN: Send email to fill Google Forms

Show HN: Placecard.net – Free PDF Seating Cards with Puppeteer

Show HN: Tududi – a minimal task manager you can self-host

Show HN: DuckDB + React = SQLRooms Framework for Analytics Apps Without Backend

Show HN: The MCP Client for Outlook

Show HN: Greger.el – Agentic Coding in Emacs

Show HN: Runal – A text-based creative coding environment for the terminal

Show HN: VSCode-Csharp-Autobuild

Show HN: Learning Rust with Neovim, Rust-Analyzer and LLMs