The best Hacker News stories from Show from the past day
Latest posts:
Show HN: NoteUX – Fast and minimalist note-taking app
Show HN: I made a little puzzle game about a rogue chess knight
Show HN: I made a little puzzle game about a rogue chess knight
Show HN: I made a little puzzle game about a rogue chess knight
Show HN: WhatsApp MCP Server
Hi HN – I built an open-source, self-hosted Model Context Protocol (MCP) server for WhatsApp: <a href="https://github.com/lharries/whatsapp-mcp" rel="nofollow">https://github.com/lharries/whatsapp-mcp</a><p>It connects to your personal WhatsApp account via the WhatsApp Web multi-device API (using whatsmeow from the Beeper team), and doesn't rely on third-party APIs. All messages are stored locally in SQLite. Nothing is sent to the cloud unless you explicitly allow your LLM to access the data via tools – so you maintain full control and privacy.<p>The MCP server can:<p>- Search your messages, contacts, and groups<p>- Send WhatsApp messages to individuals or groups<p>Why build this?<p>99% of your life is stored in WhatsApp, by connecting an LLM to WhatsApp you get all this context. And your AI agent can execute tasks on your behalf by sending messages.
Show HN: WhatsApp MCP Server
Hi HN – I built an open-source, self-hosted Model Context Protocol (MCP) server for WhatsApp: <a href="https://github.com/lharries/whatsapp-mcp" rel="nofollow">https://github.com/lharries/whatsapp-mcp</a><p>It connects to your personal WhatsApp account via the WhatsApp Web multi-device API (using whatsmeow from the Beeper team), and doesn't rely on third-party APIs. All messages are stored locally in SQLite. Nothing is sent to the cloud unless you explicitly allow your LLM to access the data via tools – so you maintain full control and privacy.<p>The MCP server can:<p>- Search your messages, contacts, and groups<p>- Send WhatsApp messages to individuals or groups<p>Why build this?<p>99% of your life is stored in WhatsApp, by connecting an LLM to WhatsApp you get all this context. And your AI agent can execute tasks on your behalf by sending messages.
Show HN: Multi UPS SNMP based shutdown
Show HN: OmniTools – Self-Hosted Open-Source Swiss Army Knife for Everyday Tasks
Hey HN!<p>I built OmniTools, a self-hosted web app that offers a collection of useful tools for everyday tasks. Think PDF manipulation,image, text utilities, and more—all in one place.<p>Open-source & self-hosted<p>Works fully in the browser (privacy-first)<p>Built with React, deployed via Docker<p>I made this because I wanted a free, self-hosted alternative to online tools that often require subscriptions. Would love feedback & ideas on what to add next!<p>GitHub link: <a href="https://github.com/iib0011/omni-tools" rel="nofollow">https://github.com/iib0011/omni-tools</a>
Demo link: <a href="https://omnitools.app" rel="nofollow">https://omnitools.app</a><p>Let me know what tools you want next.
Show HN: Bknd – Firebase alternative that embeds into any React stack
I built bknd because I was tired of stitching together auth, file storage, and database APIs every time I started a new project. Existing solutions were either too hard to extend, too basic, or required a separate deployment.<p>bknd runs directly inside your frontend app — no separate backend required. It works with Next.js, Remix, Astro, React Router. It also runs standalone on Cloudflare Workers, AWS Lambda, Bun, or Node.<p>It supports Postgres, LibSQL (Turso), D1, SQLite and has adapter-based storage. You get instant APIs, multi-strategy auth, media handling and a built-in Admin UI.<p>Curious what you’d build with it, feedback welcome!
Show HN: I built a tool to add noise texture to your images
I'm excited to introduce Noise Tools – a simple yet powerful tool that lets you effortlessly add noise textures to your images. Whether you're a designer, artist, or just experimenting with aesthetics, Noise Tools helps you enhance your visuals with just a few clicks.<p>Why I built this?
I often found myself needing high-quality noise textures for design projects but struggled to find a quick and easy solution. So, I built Noise Tools to make the process easy for everyone!<p>Features:
Generate noise textures instantly
Adjust intensity & styles
No downloads or complicated settings<p>Would love to hear your thoughts! Try it out and let me know what you think.<p>Check it out here: noisetools.vercel.app
Show HN: I built a tool to add noise texture to your images
I'm excited to introduce Noise Tools – a simple yet powerful tool that lets you effortlessly add noise textures to your images. Whether you're a designer, artist, or just experimenting with aesthetics, Noise Tools helps you enhance your visuals with just a few clicks.<p>Why I built this?
I often found myself needing high-quality noise textures for design projects but struggled to find a quick and easy solution. So, I built Noise Tools to make the process easy for everyone!<p>Features:
Generate noise textures instantly
Adjust intensity & styles
No downloads or complicated settings<p>Would love to hear your thoughts! Try it out and let me know what you think.<p>Check it out here: noisetools.vercel.app
Show HN: Cloud-Ready Postgres MCP Server
Hey HN,<p>I built pg-mcp, a Model Context Protocol (MCP) server for PostgreSQL that provides structured schema inspection and query execution for LLMs and agents. It's multi-tenant and runs over HTTP/SSE (not stdio)<p>Features
- Supports multiple database connections from multiple agents<p>- Schema Introspection: Returns table structures, types, indexes and constraints; enriched with descriptions from pg_catalog. (for well documented databases)<p>- Read-Only Queries: Controlled execution of queries via MCP.<p>- EXPLAIN Tool: Helps smart agents optimize queries before execution.<p>- Extension Plugins: YAML-based plugin system for Postgres extensions (supports pgvector and postgis out of the box).<p>- Server Mode: Spin up the container and it's ready to accept connections at <a href="http://localhost:8000/sse" rel="nofollow">http://localhost:8000/sse</a>
Show HN: Cloud-Ready Postgres MCP Server
Hey HN,<p>I built pg-mcp, a Model Context Protocol (MCP) server for PostgreSQL that provides structured schema inspection and query execution for LLMs and agents. It's multi-tenant and runs over HTTP/SSE (not stdio)<p>Features
- Supports multiple database connections from multiple agents<p>- Schema Introspection: Returns table structures, types, indexes and constraints; enriched with descriptions from pg_catalog. (for well documented databases)<p>- Read-Only Queries: Controlled execution of queries via MCP.<p>- EXPLAIN Tool: Helps smart agents optimize queries before execution.<p>- Extension Plugins: YAML-based plugin system for Postgres extensions (supports pgvector and postgis out of the box).<p>- Server Mode: Spin up the container and it's ready to accept connections at <a href="http://localhost:8000/sse" rel="nofollow">http://localhost:8000/sse</a>
Show HN: I implemented Snake in a tmux config file
Show HN: I implemented Snake in a tmux config file
Show HN: Appear as anyone in video calls like zoom or Google meets
Hey everyone! i built this free tool that basically let you appear as literally anyone in video calls. it uses the latest tech in audio driven portrait animation. Would love to have some people test this out and let me know what you think! It's currently available on ubuntu systems. it works best with 4070 or 3080 gpus and up! basically anything with about 30TFLOPS on fp16. It runs totally on your device for 100% privacy too.<p>Just looking for people to test this out and let me know what they think! You can download it at <a href="https://www.phazr.ai/" rel="nofollow">https://www.phazr.ai/</a>
Show HN: Appear as anyone in video calls like zoom or Google meets
Hey everyone! i built this free tool that basically let you appear as literally anyone in video calls. it uses the latest tech in audio driven portrait animation. Would love to have some people test this out and let me know what you think! It's currently available on ubuntu systems. it works best with 4070 or 3080 gpus and up! basically anything with about 30TFLOPS on fp16. It runs totally on your device for 100% privacy too.<p>Just looking for people to test this out and let me know what they think! You can download it at <a href="https://www.phazr.ai/" rel="nofollow">https://www.phazr.ai/</a>
Show HN: Appear as anyone in video calls like zoom or Google meets
Hey everyone! i built this free tool that basically let you appear as literally anyone in video calls. it uses the latest tech in audio driven portrait animation. Would love to have some people test this out and let me know what you think! It's currently available on ubuntu systems. it works best with 4070 or 3080 gpus and up! basically anything with about 30TFLOPS on fp16. It runs totally on your device for 100% privacy too.<p>Just looking for people to test this out and let me know what they think! You can download it at <a href="https://www.phazr.ai/" rel="nofollow">https://www.phazr.ai/</a>
Show HN Pianoboi – displays sheet music as you play your piano
I made a software library for displaying piano music 7 years back, and recently ported it to the web (which is now easier than even ever).<p>It displays sheet music as you play, and let's you take snapshots of specific chords, then keeps a running list of chords as keyboard visuals (instead of just displaying sheet music).<p>Just a simple tool for songwriting/ figuring out songs by ear, or just understanding music key theory (which I'm admittedly a still a beginner at).
Show HN Pianoboi – displays sheet music as you play your piano
I made a software library for displaying piano music 7 years back, and recently ported it to the web (which is now easier than even ever).<p>It displays sheet music as you play, and let's you take snapshots of specific chords, then keeps a running list of chords as keyboard visuals (instead of just displaying sheet music).<p>Just a simple tool for songwriting/ figuring out songs by ear, or just understanding music key theory (which I'm admittedly a still a beginner at).