Show HN: AI in Email Conversations https://ift.tt/w6m3gVH

Show HN: AI in Email Conversations https://subjam.com/ May 28, 2025 at 10:27PM

Show HN: Purpose Reminders – One simple, positive act emailed monthly to all https://ift.tt/ozsEjdt

Show HN: Purpose Reminders – One simple, positive act emailed monthly to all Hi HN, I built Purpose Reminders ( https://ift.tt/wxOp0Mj ). Our first monthly action – "Leave a positive review for a local business" – goes out June 1st (very soon!). The core idea: What if thousands of us did the same small, positive act each month? You get one email, choose to act or skip (no pressure), and then see the collective, anonymous impact. It's 100% free, built with Next.js/Supabase/Resend. My attempt at a simple way to foster some collective goodwill. What do you think of the concept? https://ift.tt/wxOp0Mj June 1, 2025 at 03:21AM

Show HN: SoloDB – A document database build on top of SQLite with JSONB https://ift.tt/rMsIeTg

Show HN: SoloDB – A document database build on top of SQLite with JSONB https://ift.tt/ZnjoFIq May 31, 2025 at 11:09PM

Show HN: A site for YC rejection stories https://ift.tt/RaxSPOo

Show HN: A site for YC rejection stories Got rejected from YC a few times, so I built a site to collect lessons, reflections, and what people would do differently next time. Thought it could be helpful since most founders apply more than once anyway :) Hope it's helpful: https://ift.tt/DVi2ljP https://ift.tt/DVi2ljP June 1, 2025 at 12:45AM

Show HN: Changefly – Rebuilding the foundation of privacy and authentication https://ift.tt/qkZ4biR

Show HN: Changefly – Rebuilding the foundation of privacy and authentication Lukas here, founder of Changefly. For those of you who might remember neworder.box.sk and astalavista.box.sk, I was one of the admin's at a very young age. Fast forward to 2018, I set out to help people regain their privacy. Google invited us into the Google Cloud Startup program which led to the creation of Changefly. After years of truly challenging work and thousands of iterations, Changefly ID was born. Changefly ID solves the problem both users and companies face on a daily basis... spam, scams, bots, account takeover attacks. At face value it looks like an ordinary code, but in fact, it is an encrypted security code that only the user knows and has access to use (a distributed anonymous authentication code). Changefly ID has a lot of flexibility -- replace traditional authentication (which you absolutely should do) or use secondary for multi-factor authentication (a good stepping-stone). It also includes end-to-end communications with your users through Changefly (not email, sms, or other unsecured channels). Additionally, the Changefly app data is also end-to-end encrypted as is the local data. We made access to Changefly ID easy and free with our Developer API. Changefly ID really does stop bots, spam, scams, and other threats from getting anywhere near users or their accounts. p.s. A big thanks to Tom (HN moderator) for their help! https://ift.tt/wAX9Dfu May 31, 2025 at 02:17AM

Show HN: Icepi Zero – The FPGA Raspberry Pi Zero Equivalent https://ift.tt/H0yjEgm

Show HN: Icepi Zero – The FPGA Raspberry Pi Zero Equivalent I've been hacking away lately, and I'm now proud to show off my newest project - The Icepi Zero! In case you don't know what an FPGA is, this phrase summarizes it perfectly: "FPGAs work like this. You don't tell them what to do, you tell them what to BE." You don't program them, but you rewrite the circuits they contain! So I've made a PCB that carries an ECP5 FPGA, and has a raspberry pi zero footprint. It also has a few improvements! Notably the 2 USB b ports are replaced with 3 USB C ports, and it has multiple LEDs. This board can output HDMI, read from a uSD, use a SDRAM and much more. I'm very proud the product of multiple weeks of work. (Thanks for the pcb reviews on r/PrintedCircuitBoard ) (All the sources on github under an open source license :D) PS. See some more pics on reddit https://ift.tt/GizHTMF... https://ift.tt/SgXGuVw May 28, 2025 at 07:01PM

Show HN: Asdf Overlay – High performance in-game overlay library for Windows https://ift.tt/CenxKLu

Show HN: Asdf Overlay – High performance in-game overlay library for Windows I am making a open source overlay library. Game overlay is for rendering contents on top of game screen. Representative examples are Discord and Steam in-game overlay. They are complicated because it has to hook rendering part of a game. Asdf overlay provides easy to use interfaces for rendering on top of game screen. I recognize game performance degradation due to overlay rendering, so GPU shared texture was used to avoid CPU framebuffer copy. Asdf Overlay is capable of rendering full screen overlay without noticeable performance loss. https://ift.tt/S4KFaxN May 30, 2025 at 11:57PM

Show HN: Clean Simple DNS Lookups https://ift.tt/j9R4Tws

Show HN: Clean Simple DNS Lookups Hey HN, Last weekend I vibe-coded a cool website that lets you do easy DNS record lookups. I know you can just use dig or nslookup, but oftentimes I'm too lazy to remember the syntax, and there are less technical users who need to manage DNS entries but aren't comfortable with the command line. We debug customer DNS issues often at ImprovMX, and we typically link to tools like mxtoolbox.com to point out DNS record issues. But those tools seem quite bloated and from the 2000s. I wanted something super clean & simple, and there were a few features I thought were ergonomically needed but lacking: - no confusing dropdowns or syntax for DNS lookup, just put in your domain or subdomain - click-to-copy for all values - header-links so we can provide URLs that will direct another user to an exact domain and which record we want to reference This was SUPER FUN to vibe code! The frontend was pretty much one-shotted with lovable. It's amazing how good AI is when working on a clean slate with all the latest popular frameworks (react, tailwind, shadcn, etc.). And I spent the next few hours making small tweaks with cursor. The backend is a dead simple python flask server. Both are hosted on render.com <3 I love how simple and value-oriented render.com is. It's always the provider that gives me the least headache when I want to just launch and forget something. Give it a try and let me know what you think! https://inspector.improvmx.com May 30, 2025 at 12:21AM

Show HN: Website Does Not Exist https://ift.tt/QDqTbcM

Show HN: Website Does Not Exist https://ift.tt/3ADGTjB May 29, 2025 at 11:22PM

Show HN: JsonPP, a Functional JSON Superset https://ift.tt/gPsjSrk

Show HN: JsonPP, a Functional JSON Superset Json plus plus or Json pre-processor, whichever you prefer. A turing complete, unit tested joke of a language with just the slightest glint of usefulness. https://ift.tt/dIzKrPO May 29, 2025 at 11:40PM

Show HN: FizzBuzzAI – The Most Inefficient FizzBuzz Solution Ever Made https://ift.tt/GkecoZx

Show HN: FizzBuzzAI – The Most Inefficient FizzBuzz Solution Ever Made https://ift.tt/d5NcjUg May 29, 2025 at 04:49AM

Show HN: I built an AI tool that generates click-worthy YouTube thumbnails https://ift.tt/vMCtzDH

Show HN: I built an AI tool that generates click-worthy YouTube thumbnails Hey HN! Software engineer here. As an amateur youtuber, I've been struggling with thumbnails, especially since I don't have any design or editing skills. Decided to give it a try and make my own automatic thumbnail generator. Me being an ADHD person, made sure that there's no parameter tuning and shape choosing and fuss like that, just simply give prompt and generate thumbnail. Increased my CTR from 1.2% to 2.3% (faceless fantasy books niche on youtube) Thumbnail X (completely free for now) - https://thumbnailx.com/ Just wanna add that this is by no means a perfect thumbnail maker for huge YouTube moguls with millions of subscribers but I'm sure it's gonna be extremely helpful for beginner youtubers and medium size channels struggling with thumbnails. Tools used: 1. Cursor for development (shoutout to claude oppus 4.0) 2. Few image generators (primarily ideogram, but leonardo ai, deep ai and gpt 4o as fallbacks) 3. Few llms (chatgpt, claude, gemini for validating images and prompt enhancement) 4. AWS and Redis for storage & caching 5. Digital ocean for hosting and db 6. Python https://thumbnailx.com/ May 29, 2025 at 02:51AM

Show HN: European Accessibility Act – Simple CLI Checker https://ift.tt/dfwTWRE

Show HN: European Accessibility Act – Simple CLI Checker https://ift.tt/xLu2AhG May 29, 2025 at 12:35AM

Show HN: Octogen: e-commerce capabilities for agents https://ift.tt/LRw48a5

Show HN: Octogen: e-commerce capabilities for agents Hi HN, We just released a public beta of e-commerce capabilities for AI agents — aimed at developers building shopping agents or personal assistants. It’s early and buggy, but we’d love your feedback. Try a live demo here: https://ift.tt/A65DnU8 --- ## Why we built this We believe the biggest *technical* bottleneck in building consumer e-commerce agents is fragmented product data and inconsistent schemas across online stores. So we created a high-fidelity yet unified interface for *e-commerce catalog + checkout*, regardless of the underlying platform. --- ## What it does We currently offer two core capabilities: ### 1. Unified product catalog (for LLM-style search) - Octogen automatically wrangles any ecommerce site into a common schema — a superset of `schema.org/Product`. - It works across platforms and is available today for hundreds of sites. - You can request new stores — ~95% are processed fully autonomously. - Useful for agents doing RAG-based product search with rich attribute awareness. ### 2. Agentic checkout (closed beta) - Works on *any ecommerce site* using virtual cards (Visa only for now). - Enables agents to complete checkout flows much faster than browser-based "computer agents." - We're working on support for additional vaults/wallets/payment APIs. --- If you’re working on agentic commerce, autonomous checkout, or personal AI shoppers — we’d love your feedback and ideas. More at: https://octogen.ai https://octogen.ai May 29, 2025 at 12:25AM

Show HN: Free mammogram analysis tool combining deep learning and vision LLM https://ift.tt/ZQMDXmW

Show HN: Free mammogram analysis tool combining deep learning and vision LLM I've built Neuralrad Mammo AI, a free research tool that combines deep learning object detection with vision language models to analyze mammograms. The goal is to provide researchers and medical professionals with a secondary analysis tool for investigation purposes. Important Disclaimers: - NOT FDA 510(k) cleared - this is purely for research investigation - Not for clinical diagnosis - results should only be used as a secondary opinion - Completely free - no registration, no payment, no data retention What it does: 1. Upload a mammogram image (JPEG/PNG) 2. AI identifies potential masses and calcifications 3. Vision LLM provides radiologist-style analysis 4. Interactive viewer with zoom/pan capabilities You can try it with any mass / calcification mammo images, e.g. by searching Google: mammogram images mass Key Features: - Detects and classifies masses (benign/malignant) - Identifies calcifications (benign/malignant) - Provides confidence scores and size assessments - Generates detailed analysis using vision LLM - No data storage - images processed and discarded Use Cases: - Medical research and education - Second opinion for researchers - Algorithm comparison studies - Teaching tool for radiology training - Academic research validation The system is designed specifically for research investigation purposes and to complement (never replace) professional medical judgment. I'm hoping this can be useful for the medical AI research community and welcome feedback on the approach. Address: https://ift.tt/XPsud8m https://ift.tt/XPsud8m May 27, 2025 at 08:43PM

Show HN: JSON Commenter, add comments with valid JSON syntax https://ift.tt/Gx9fZ78

Show HN: JSON Commenter, add comments with valid JSON syntax JSON Commenter is a vscode extension that lets you create inline comments in a JSON file while keeping valid syntax. You create a block with a command that places the comment anywhere legal in the JSON. The text is edited inline and supports word wrap, padding, margins, etc. The comment is in a somewhat good-looking box with minimal extra characters. Zero-width unicode chars give keys that only show two quotes. This is a sample comment block... " ":"----------------------", " ":" This is a comment. ", " ":"----------------------", https://ift.tt/plmXN4R May 27, 2025 at 04:03AM

Show HN: Remove AI Job Spam from Indeed and LinkedIn https://ift.tt/Jrzcgot

Show HN: Remove AI Job Spam from Indeed and LinkedIn https://ift.tt/hMAp42O May 27, 2025 at 02:09AM

Show HN: CodeNow – CoderPad over WebRTC and WASM https://ift.tt/xJVTioq

Show HN: CodeNow – CoderPad over WebRTC and WASM I was doing a lot of Leetcode this winter, and got the idea of building something like it that used wasm in the browser rather than having to manage the complexity of executing remote code securely on a server. Once I figured that out, I thought it would be neat to make it collaborative, like Coderpad — that part was a bit tougher, but it mostly works now, using WebRTC. I'm not sure whether other people will think this is cool, but I had fun building it and learning more about wasm + WebRTC. https://ift.tt/wGRrpzv May 27, 2025 at 02:08AM

Show HN: XOff an open source Chrome extension to change X links to Xcancel https://ift.tt/VzT8ifX

Show HN: XOff an open source Chrome extension to change X links to Xcancel Basic, but works afaics. https://ift.tt/QzyDlVo May 27, 2025 at 12:12AM

Show HN : A noise free Hackers News newsletters + catch up page https://ift.tt/xiH5bnt

Show HN : A noise free Hackers News newsletters + catch up page Hey HN, I built HN500 because I wanted a no-fuss way to stay updated on major HN stories — especially after taking time off. It’s a newsletter and a catch-up tool with a few handy features: Set your own point threshold (250/500/750/1000) to get only the most upvoted posts. - Choose daily or weekly email updates. - Each email includes 3 random stories to help surface underrated gems. - The catch-up page lets you filter by points, time range, sort order, and more — great if you’ve been away for a while. It’s free, lightweight, and designed to stay out of your way. Feedback is welcome! https://ift.tt/xX9iI5U May 26, 2025 at 01:47AM