Show HN: PlantDiagrams – AI-powered PlantUML editor https://bit.ly/4n61mYk

Show HN: PlantDiagrams – AI-powered PlantUML editor Hi HN! I couldn’t find a truly user-friendly PlantUML editor, so I set out to build one. PlantDiagrams lets you describe a diagram in plain English; it generates the PlantUML and renders it instantly. The goal is to shorten the path from idea → diagram without fighting the editor. Tech: - Next.js / Supabase / FLy.io / Vercel Highlights - Natural-language to PlantUML with live preview - Export diagrams (SVG/PNG/TXT) - Organize work with Projects - Share via link; optional comments for review - Sample gallery to open and tweak examples Try it: https://bit.ly/4n5bBMy https://bit.ly/4n5bBMy September 19, 2025 at 09:34PM

Show HN: Illustria – AI illustration generator with free downloadable gallery https://bit.ly/46mkoUF

Show HN: Illustria – AI illustration generator with free downloadable gallery Hi HN I built Illustria – a simple tool to generate custom illustrations on demand Why I built it: - I was frustrated spending hours browsing stock sites for the right visuals. - Free illustrations often didn’t match the style I needed. - I wanted a faster way to get usable illustrations for landing pages, pitch decks, and side projects. What it does today: - Generate illustrations instantly based on your input (first generation is free). - Explore different looks/styles without needing design skills. - Download and use them right away. - Browse a free gallery of ready-made illustrations: https://bit.ly/4nee9rV I’d love feedback on: - Would you actually use this for your side projects? - What features would make it more valuable for you? https://bit.ly/4mtTDSX September 18, 2025 at 10:51PM

Show HN: 47jobs – A Fiverr/Upwork for AI Agents https://bit.ly/46m134t

Show HN: 47jobs – A Fiverr/Upwork for AI Agents Hi HN, I’ve been working on something I’d love to share: 47jobs ( https://bit.ly/4mpa3vW ) – a marketplace where you can hire AI agents to do tasks instead of human freelancers. Why? I kept noticing that many tasks on Upwork/Fiverr—coding, content generation, data analysis, automation—can now be handled by AI in minutes, not hours. But there wasn’t a platform built around hiring AI directly. So I built 47jobs: 100% AI agents doing the work (no humans in the loop). Jobs get delivered 10x faster, at transparent prices. You can “hire” an agent for coding, automation, research, etc. I’d love your thoughts: Does a pure AI-agent marketplace make sense? What types of jobs would you want AI agents to handle first? Any UX or trust issues you’d expect with this model? This is an early version, and I’m here to learn from your feedback. Thanks! https://bit.ly/4maEdCH September 16, 2025 at 05:53PM

Show HN: Made NZ's member of parliament financial disclosure data searchable https://bit.ly/3KtJacA

Show HN: Made NZ's member of parliament financial disclosure data searchable New Zealand Members of Parliament are required to annually disclose their financial interests (shareholdings, directorships, consultancies, etc.) but this gets published annually as an unwieldy 80+ page PDF that's hard to search effectively. I processed structured data out of the PDF and built a searchable interface: https://bit.ly/3I226Pa... . You can search across all MPs' disclosed interests by name, company, or interest type. For example, you can quickly find which MPs have interests in specific sectors or companies, filter by category or political party. The data extraction was interesting - I found that a two-pass approach worked well with Gemini 2.5 Flash - one to pull out MP names and referenced page numbers, then I extracted the specific pages each MP appeared on and extracted structured data just from these pages. The approach could work for similar transparency registers in other countries - most seem to publish open data as PDF, which technically ticks the box, but isn't the most accessible format to work with. Even within NZ, I'm planning to expand the data I process to previous years, as well as processing data for local and regional councils (who have the same legal requirement to publish financial interests of council members). Open sourced at https://bit.ly/46srF3V... . Tech stack: Ruby on Rails, SQLite (FTS5), Tailwind/DaisyUI - keeping it lightweight since this is just a side project to make public data more accessible. https://bit.ly/3Ihgbs2 September 18, 2025 at 05:23AM

Show HN: The text disappears when you screenshot it https://bit.ly/4mkIeEQ

Show HN: The text disappears when you screenshot it https://bit.ly/4mleuHO September 18, 2025 at 03:18AM

Show HN: OrderlyID – typed, time-sortable, 160-bit IDs with checksums https://bit.ly/4gzZhBI

Show HN: npm-daycare, an NPM proxy that filters out recent & small packages https://bit.ly/4pwMDaI

Show HN: npm-daycare, an NPM proxy that filters out recent & small packages Hey all! npm-daycare is a simple NPM proxy built on Verdaccio which filters all packages that: - are younger than 48h (it will just provide an old version instead) - have fewer than 5,000 weekly downloads https://bit.ly/4pszLC6 This is in response to the recent supply chain attacks that shattered the JavaScript ecosystem [1]. It's likely not a problem that will go away any time soon, so we figured we'd build something to protect against it. Doing this on the proxy layer means it will work across the entire system, as proxies are set globally. In the future, we could also add more filters to the proxy. To get started, just run the Docker container: docker run -d --rm --name npm-daycare -p 4873:4873 bgodil/npm-daycare npm set registry http://localhost:4873/ pnpm config set registry http://localhost:4873/ yarn config set registry http://localhost:4873/ bun config set registry http://localhost:4873/ npm view @types/node # has recent updates npm view pgmock # has <5,000 weekly downloads Downside: npm-daycare won't show packages that are younger than 48h on its default config, so be aware of that when you try to update your packages to patch a zero-day exploit. You probably also shouldn't rely on this as your only line of defense. Curious to hear what you think! [1] https://news.ycombinator.com/item?id=45260741 https://github.com/stack-auth/npm-daycare September 17, 2025 at 02:22AM

Show HN: I built a platform for long-form media recs (books, articles, etc.) https://bit.ly/3KqMc1h

Show HN: I built a platform for long-form media recs (books, articles, etc.) Would love any feedback https://bit.ly/46aUTFy September 17, 2025 at 01:38AM

Show HN: Scientific Calculator for Android https://bit.ly/4nsqY1s

Show HN: Scientific Calculator for Android https://bit.ly/41RNPv6 September 17, 2025 at 12:46AM

Show HN: Open Line Protocol – a minimal wire for AI agents (MIT) https://bit.ly/3Vjkvdi

Show HN: Open Line Protocol – a minimal wire for AI agents (MIT) I built a tiny, typed wire for AI agents to exchange small graphs + telemetry instead of paragraphs. Ships: • Frozen v0.1 schema (backwards-compatible) • 5-number “shape” digest + holonomy gap (Δ_hol) • Guards to stop self-licking loops / silent deletions / order-debt spikes • Receipts: machine-verifiable JSON (schema-checked in CI) Repo: https://bit.ly/3K890mm Live hub: https://bit.ly/4nxvOu7 What feedback helps most: • Field naming in the wire • Guard thresholds • Which adapter you’d want first (WebSocket, store) MIT licensed. https://bit.ly/3K890mm September 16, 2025 at 03:01AM

Show HN: A tool to make a bootable USB installer out of macOS, or download it https://bit.ly/3Im6eJP

Show HN: A tool to make a bootable USB installer out of macOS, or download it I wanted to be able to get at Apple's content distribution network directly instead of guessing when stuff would be made available to me, and found it convenient to have a physical installer handy so I made this https://bit.ly/464tSUg September 16, 2025 at 01:47AM

Show HN: Labspace Directory – Biotech resource for lab space https://bit.ly/4n52gnX

Show HN: Labspace Directory – Biotech resource for lab space Hi HN, I’m Elijah with Labspace Directory ( https://bit.ly/3K2BUEA ), a new platform designed to help biotech companies find lab space. Our site brings together available lab space across the Bay Area, serving startups through established life science companies. The platform is built to streamline the search process—saving time by centralizing listings, providing key details on availability, and helping companies connect directly with opportunities that fit their needs. You can get started here: https://bit.ly/3K2BUEA We’re excited to share this with the broader Bay Area life science community and welcome any feedback as we continue to build and improve the platform. https://bit.ly/3K2BUEA September 15, 2025 at 11:52PM

Show HN: EpicPSA – Create PSA's for any message https://bit.ly/4n4r0Nj

Show HN: EpicPSA – Create PSA's for any message I created a SaaS that lets anyone create funny public service announcements for any situation or message. Chose from a predefined set of voices and there is an option to enhance your message using AI to make it sound better. Enjoy! https://bit.ly/3IntFCr September 15, 2025 at 02:19AM

Show HN: Worried about your pet? Health assessments with instant answers https://bit.ly/4mllkNI

Show HN: Worried about your pet? Health assessments with instant answers https://bit.ly/3ImRgmJ September 14, 2025 at 09:06PM

Show HN: PaperSync, making ArXiv papers collaborative https://bit.ly/4nvJiGL

Show HN: PaperSync, making ArXiv papers collaborative Demo: https://youtu.be/pnznDL9SZvI PaperSync was a project was made by two CS freshmen, Matthew Li (me!) and Michael Li, in 24 hours during HackCMU. At a high level, we built PaperSync to make reading research papers easier and more collaborative. Users can reference any part of the paper, ask anything they want, and have other users reply, all within the paper itself! If you are interested in our work, we would love to talk! Reach out to us at mqli@andrew.cmu.edu or mdli2@andrew.cmu.edu. https://bit.ly/4nAHhcK September 15, 2025 at 12:49AM

Show HN: GitHub repo with 180 tools for investing https://bit.ly/4nvhimO

Show HN: GitHub repo with 180 tools for investing https://bit.ly/4nuIv9e September 14, 2025 at 09:15AM

Show HN: UltraPlot. A Succinct Wrapper for Matplotlib https://bit.ly/4gm8pd3

Show HN: UltraPlot. A Succinct Wrapper for Matplotlib https://bit.ly/4gk2IMw September 10, 2025 at 08:14PM

Show HN: MemoryMe: An effort to beat Cognitive Decline https://bit.ly/4gpw2RN

Show HN: MemoryMe: An effort to beat Cognitive Decline Hi everyone! First time posting. I built this mini memory game in an attempt to beat lazy memory syndrome. because when was the last time you remembered what you did the day before purely based on memory (or without being prompted) ? Super simple fun game for giving our brains a quick workout and actually reminding it on how to remember. If you had those old Nokia phones from the early 90s, the game will seem insanely familiar to you https://bit.ly/47BT6KS September 13, 2025 at 08:35PM

Show HN: council - ai groupchat of ctos (no more asking ai to roleplay) https://bit.ly/4miYO7T

Show HN: council - ai groupchat of ctos (no more asking ai to roleplay) i made a council of advisors to help me code. as a self taught dev, ive been heavily reliant on ai for the past two years. found myself often prompting claude to take on different personalities, so i built a web app. it's great for the step before telling cursor what to do and reviewing prs once theyre ready. PLEASE DON"T NUKE MY APY KEY. ty https://bit.ly/4mlMvrD September 13, 2025 at 09:38PM

Show HN: YC Startup Map – A Map Visualization of the YC Startup Directory https://bit.ly/4617ivI

Show HN: YC Startup Map – A Map Visualization of the YC Startup Directory https://bit.ly/462Lvnl September 13, 2025 at 06:18AM