Show HN: Markdown Gatekeeper – one current source per topic for AI agents https://bit.ly/46A48hN

Show HN: Markdown Gatekeeper – one current source per topic for AI agents https://bit.ly/3V8pmAQ September 2, 2026 at 03:48AM

Show HN: Gopdfrab – Open-source PDF/A processing for Go https://bit.ly/4gABnpO

Show HN: Gopdfrab – Open-source PDF/A processing for Go https://bit.ly/4h8jDCP September 1, 2026 at 07:34PM

Show HN: Three Pins a daily 3-hole golf game in the browser https://bit.ly/4cWgTH7

Show HN: Three Pins a daily 3-hole golf game in the browser https://bit.ly/4cT7zDU September 1, 2026 at 06:45PM

Show HN: Notes Plus – A Markdown Apple Notes Clone with Latex, Excalidraw etc. https://bit.ly/4xxc8Mm

Show HN: Notes Plus – A Markdown Apple Notes Clone with Latex, Excalidraw etc. tldr: clone of Apple Notes, but every note is a local Markdown file. Hi, I used a summer of unemployment to actually finalize a hobby project, a literal clone of Apple's Notes, with open access to the filesystem, meaning each note is just a markdown file. Then implemented renderers for Excalidraw, Latex, AsciiMath, mermaid diagrams, PlantUML, Graphviz, Vega Lite, mhchem and footnotes (a feature i need a lot in texts). It can also show notes in vertical lists, like swimlanes, I call it "JIRA view" ;) Free for now (might monetize later if successful, with $19 one-time payment, NOT subscription)! I'm not 100% sure about the legal aspect of this, but i will try to even list it in the Appstore. The binaries are signed / notarized by Apple. *PLEASE NOTE:* This is an early alpha! SO BACKUP YOUR STUFF OR JUST WORK WITH COPIES! There are issues! I'm posting this here to collect hurtful user feedback. There's a bug report button in the app, and it will notify you about available updates. Thanks, I kindly request any form of feedback! https://bit.ly/4h4VBJR September 2, 2026 at 12:17AM

Show HN: A Curated Library of Hero Sections from Fast-Growing Startups https://bit.ly/4qPG0B9

Show HN: A Curated Library of Hero Sections from Fast-Growing Startups https://bit.ly/4qXbYvp September 1, 2026 at 03:36AM

Show HN: Saccade – Live semantic browser truth for AI agents https://bit.ly/3SDsfsO

Show HN: Saccade – Live semantic browser truth for AI agents I build one this application is to resolve the most of the agent cannot handle the brother they extremely slow. So I come up with this idea, we install one of the extntion on chrome or edge to give continuously compile the tabs authorized by the user into semantically meaningful objects with stable identities, and push page changes as deltas to the local Node.js Broker. The Agent reads the full truth or delta of the specified tab via MCP and executes actions using object IDs bound to document. The preliminary result shows that it is very close to the performance of Playwright in terms of token use and speed. The only problem with this one is that at the very first time, it is going to send the full truth, and after that, for any page changes, it only sends the data. So, after the first read, the continuous operation of the page reaches the millisecond reaction loop. It can also upload filled forms, downloads, and all kinds of stuff. I want somebody to check and use it. If it is possible plz give me some feedback. https://bit.ly/4qPDIC8 September 1, 2026 at 12:35AM

Show HN: ScoutLayer – a simple API to find contacts from a domain https://bit.ly/4gO40Ai

Show HN: ScoutLayer – a simple API to find contacts from a domain https://bit.ly/3So4d4Z August 31, 2026 at 03:21AM

Show HN: Break 5, the addictive, free 5 minute, daily word game https://bit.ly/4i3xdcE

Show HN: Break 5, the addictive, free 5 minute, daily word game No 3rd party analytics, no tracking, no data sharing. Just a fun, free game where everyone plays the same daily puzzle, in which you are challenged to turn one five-letter word into another five-letter word, changing one letter at a time. https://bit.ly/4gGFe4O August 31, 2026 at 01:05AM

Show HN: What Apple's OS updates silently change in the on-device AI model https://bit.ly/3SkNQpT

Show HN: What Apple's OS updates silently change in the on-device AI model https://bit.ly/4xikhUl August 31, 2026 at 12:41AM

Show HN: Delete yourself from data brokers without a subscription https://bit.ly/4wSN0i3

Show HN: Delete yourself from data brokers without a subscription I signed up for a paid service to get my phone, addresses, and vehicles off the public internet. It didn’t work. So I built remove-your-data, an open-source repo that tells your agent exactly what to do to remove your personal information online. https://bit.ly/4iDwKOp August 29, 2026 at 11:31PM

Show HN: SSH Ache – open-source desktop SSH client with SFTP, tunnels and MCP https://bit.ly/4izMh1J

Show HN: SSH Ache – open-source desktop SSH client with SFTP, tunnels and MCP https://bit.ly/3T7pkbX August 29, 2026 at 08:42PM

Show HN: Metis – An agent harness pushing DeepSeek to Opus-tier coding (82%) https://bit.ly/4xCnH55

Show HN: Metis – An agent harness pushing DeepSeek to Opus-tier coding (82%) https://bit.ly/4cfDqOV August 29, 2026 at 03:36AM

Show HN: An annotated archive of S-1 filings, with hindsight https://bit.ly/4gyPLyV

Show HN: An annotated archive of S-1 filings, with hindsight https://bit.ly/4gElCya August 29, 2026 at 01:56AM

Show HN: NodeAkt – Zero-dependency distributed actor framework for TypeScript https://bit.ly/4i17ba2

Show HN: NodeAkt – Zero-dependency distributed actor framework for TypeScript https://bit.ly/45Unkqu August 29, 2026 at 12:48AM

Show HN: 500,000+ AOL Instant Messenger Buddy Icons All at Once https://bit.ly/4gyIGhN

Show HN: 500,000+ AOL Instant Messenger Buddy Icons All at Once I needed a couple of AOL Instant Messenger buddy icons for a project, and then that turned into a project and before you know it I was trying to scrape every single buddy icon off the internet. I have slightly over 500,000 of them live, browseable, and downloadable with a single click on my new totally non-commercial project site buddyiconarchive.com I think that I am perhaps 20% of the way to my goal of having a "complete" collection of all the buddy icons that ever appeared on the internet, a rough estimate based on the counts advertised by various period aggregators. I am looking to trade icons with someone who maybe has an entire backup of iconator.com or other large buddy icon sharing site. My goal would be to add them to the archive and make them widely available. These sites, it turns out, are not completely archived in Wayback Machine, or at least it would seem. If you can help, there's a contribute files/urls page - https://bit.ly/4gLrc26 Cheers! john https://bit.ly/45WBMhx August 29, 2026 at 12:01AM

Show HN: Leadcode – per-client account isolation for Claude Code, Codex, and gh https://bit.ly/4hZ3NfK

Show HN: Leadcode – per-client account isolation for Claude Code, Codex, and gh https://bit.ly/46wdaMI August 28, 2026 at 02:32AM

Show HN: Lightweight reimplementation of YaCy peer as small Go services https://bit.ly/4y1oYT2

Show HN: Lightweight reimplementation of YaCy peer as small Go services https://bit.ly/4gVpJHr August 28, 2026 at 01:58AM

Show HN: Caravan, a flexible TypeScript-first logger for JavaScript applications https://bit.ly/4d5wTqe

Show HN: Caravan, a flexible TypeScript-first logger for JavaScript applications I first shared Caravan on HN in 2024[0]. At the time, I had built the initial version over the Christmas holidays. You guys seemed to enjoy it. Today, I’ve released another major update after spending the last couple of weeks working on it. [0]: https://bit.ly/3DII9Kl https://bit.ly/4gVtvOb August 28, 2026 at 01:09AM

Show HN: The load-bearing vocabulary of Claude https://bit.ly/4zCDDFS

Show HN: The load-bearing vocabulary of Claude https://bit.ly/4wWGFT1 August 27, 2026 at 09:59AM

Show HN: Forgot the Command? Stay in the Terminal https://bit.ly/4qCkAr8

Show HN: Forgot the Command? Stay in the Terminal Describe what you need, HumanSH writes the command directly into your terminal for review — no chatbot tab, no copy-paste, no lost flow. https://bit.ly/46uh8p6 August 27, 2026 at 07:38AM