Show HN: RF Hunter – Find hidden cameras and other devices https://bit.ly/3YcS6qa

Show HN: RF Hunter – Find hidden cameras and other devices This project is an RF Signal Scanner built using an ESP32, AD8317 RF detector, and various other components. It's designed to detect and measure RF signals in the environment and display the signal strength on an OLED display. It's useful to find hidden cameras, wiretapping devices, and other RF-enabled devices. https://bit.ly/3NHg5J2 October 24, 2024 at 01:21AM

Show HN: Karl – A virtual friend you can text https://bit.ly/4fglJh0

Show HN: Karl – A virtual friend you can text Hi HN! We're excited to introduce "Karl" – a virtual friend you can text to share what's on your mind. We created Karl because we found it incredibly helpful to have a sounding board and someone I could talk to anytime, day or night. Karl isn't meant to replace real friendships but rather to act as a mediator and an additional point of contact. He remembers important details you share and can connect the dots between past events and current decisions. Anyone can message Karl by texting +1 (844) 619-7958 . There’s no separate app or website – just text to start a conversation. The first ten messages are free, after which Karl charges 10 per month to continue (and to help cover Karl's dining habits). On the backend, we primarily use 4o (OpenAI) to handle message flow and identify important memories. All the code for LLM calls, context management, and tool use is custom-built, as we found frameworks like Langchain to be too much overhead. Moving forward, we plan to run a fine-tuned 4o-mini model and experiment with other providers. Texting is powered by Twilio (and FYI – getting a non-sandbox phone number is quite a process), and we use Postgres (via Supabase) to store conversations and context. The entire service runs on Render. We’re also working on new features like proactive check-ins and smarter memory handling. Karl is currently in early alpha. We'd love feedback from the HN community at hello@heykarl.xyz. Please say hi, and we hope you have some great conversations! October 23, 2024 at 11:44PM

Show HN: Stable Diffusion 3.5 – Advanced AI Image Generator https://bit.ly/3Y9p9LO

Show HN: Stable Diffusion 3.5 – Advanced AI Image Generator Stable Diffusion 3.5 uses advanced AI to transform text prompts into beautiful, original images. Perfect for artists, designers, and creative professionals. https://bit.ly/3NytFyF October 23, 2024 at 07:46AM

Show HN: I made a list of free high DA site which gives free backlinks https://bit.ly/3Yx87bW

Show HN: I made a list of free high DA site which gives free backlinks SaaSDirectories.fyi is a directory of free saas directories out there. You can submit your saas on these sites and get free backlink and relevant traffic https://bit.ly/4fdZMiR October 23, 2024 at 05:37AM

Show HN: Ryde, a Rust Web Framework https://bit.ly/48mENIj

Show HN: Ryde, a Rust Web Framework https://bit.ly/3AlIRvM October 23, 2024 at 03:10AM

Show HN: I built a Photoshop expert for clothing brands https://bit.ly/4hhpzIH

Show HN: I built a Photoshop expert for clothing brands Hey guys, my name's Chris. The feeling of shipping your first app is incredible. This year, in February I paused my main business (a digital agency) and decided to learn full stack. Yep, not the wisest thing to do. Agree. But I was always passionate about apps. Most of my clients were startups. And gosh, I loved talking to founders. I remember first time running 'npm run dev' in my IDE and seeing the Next screen on my localhost. Great feeling. So I spent 3 months building my first app - Delle. It helps small clothing brands to create professional photo shoots for their clothing line. back in 2023, I had a few eComm clients. And I've noticed they spend a lot of money into professional photo shooting. Most importantly, they waste time and effort on finding a good studio, hiring models, scheduling.. And while there are plenty of tools that integrate with VTON (Virtual Try On) technology, I kept Delle a bit different: 1. I wanted to allow users to generate images for different fits, like S, L, XXL. This would help their customers to see how the product would look on them. It would also help with the store conversions. 2. Realistic models: the competing apps lack that human touch. You can easily spot it's AI. You can go ahead and give Delle a try here: https://bit.ly/4h9lV3L If you'll have questions around the tech stack or simply want to share your feedback/bugs, please let me know. If would mean a lot to me. October 22, 2024 at 11:39PM

Show HN: Optimizing compiler for a large subset of C, written in Rust https://bit.ly/3BS5wk5

Show HN: Optimizing compiler for a large subset of C, written in Rust Hello. I wanted to share what I had been working on for the past couple of months or so. It's an optimizing C compiler for a large subset of the C programming language written in Rust. It's basically a Rust implementation of the C compiler from Nora Sandler's book[1]. It has been a great educational exercise and I wholeheartedly recommend it to everyone. [1]: https://bit.ly/3AaSkGm https://bit.ly/3Ab34ob October 22, 2024 at 01:42AM

Show HN: Amphi, visual data transformation based on Python https://bit.ly/3Y9Gowu

Show HN: Amphi, visual data transformation based on Python Hi everyone, I’d like to introduce Amphi, a free and source-available visual data transformation tool. Amphi is a low-code tool designed for data preparation, manipulation and ETL tasks, whether you're working with files or databases, and it supports a wide range of data transformation operations. The main difference from tools like Alteryx or Knime is that Amphi is based on Python and generates native Python code (pandas and DuckDB) that you can export and run anywhere. You also have the flexibility to use any Python libraries and integrate custom code directly into your pipeline. It is available as both a standalone application or a JupyterLab extension (see Github repo for install instructions). If you're interested don't hesitate to give it a try. You can install it via pip (Python and pip need to be installed on your laptop). Don't hesitate to star the repo and open GitHub issues if you encounter any problems or have suggestions. Amphi is still a young project, so there’s a lot that can be improved. I’d really appreciate any feedback! https://bit.ly/48fYaTj October 21, 2024 at 11:46PM

Show HN: Data Formulator – AI-powered data visualization from Microsoft Research https://bit.ly/3NAV174

Show HN: Data Formulator – AI-powered data visualization from Microsoft Research Creating data visualizations with AI nowadays often means chat, chat and more chats...and writing long prompts can be annoying while they are also not the most effective way to describe your visualization designs. Data Formulator blends UI interaction with natural language so that you can create visualizations with AI much more effectively! You can: * create rich visualizations beyond initial datasets, where AI helps transforming and visualizing data along the way * iterate your designs and dive deeper using data threads, a new way to manage your conversation with AI. Here is a demo video: https://bit.ly/3Ydnzss.... Give it a shot and let us know how it looks like! https://bit.ly/48iS4l3 October 21, 2024 at 08:42PM

Show HN: HackBud – I no longer struggle to find teammates for Hackathons https://bit.ly/40bLjQg

Show HN: HackBud – I no longer struggle to find teammates for Hackathons Hey there, Last year, I participated in a hackathon and wanted to connect with people to build a team. I went to Discord and other channels to find people who would be interested in participating, but it took a lot of time to find people and reach out to them and decided to participate alone. Then came the idea of solving my problem by building a platform where I could find people with the same mentality who want to build cool stuff in hackathons, without much effort. Hence, HackBud was born. I am launching it on Product Hunt today: https://bit.ly/40c8D0j October 21, 2024 at 04:45AM

Show HN: Doom Inside an SVG https://bit.ly/4e2tJS8

Show HN: Doom Inside an SVG https://bit.ly/4e0jv4l October 21, 2024 at 02:23AM

Show HN: Semantic Macros Text Editor https://bit.ly/4hgkoJg

Show HN: Semantic Macros Text Editor https://bit.ly/3Ny7etq October 20, 2024 at 11:11PM

Show HN: Create a Digital Signature in Seconds with This Free Tool https://bit.ly/3Nzikym

Show HN: Create a Digital Signature in Seconds with This Free Tool I built this simple free signature generator to quickly create a nice-looking digital signature. No design skills or fancy software needed—just hand-draw it or type your name, pick a style, and download it. It’s a super basic tool, but useful if you need a signature for invoices, documents, or anything else where a little extra polish helps. You can download it in PNG format as a transparent file, so it’s easy to drop into any project. If you’re also into templates for things like invoices or letterheads, there are a many other resources on the site that might come in handy. Thanks for checking it out! https://bit.ly/3A6IMMr October 20, 2024 at 09:28AM

Show HN: I made a Journaling app to be more productive https://bit.ly/3AevYDJ

Show HN: I made a Journaling app to be more productive I'm excited to share with you the onlinefication of my best habit, the one that has helped me build all my other habits: journaling. I didn't want to carry around paper and a pen, so I created this app to make journaling more convenient and accessible. I hope you all enjoy it! https://bit.ly/3C0yWMC October 20, 2024 at 08:46AM

Show HN: I made a directory of directories (seriously) https://bit.ly/3YuE3xp

Show HN: I made a directory of directories (seriously) I kept seeing more and more Product Hunt alternatives pop up, so I started tracking them in a spreadsheet to potentially use for future launches. The list was sitting at around 80 sites when I decided to deep dive and see how many more I could find. So I then built IndieLaunch: 250+ directories to help you launch your startup. It's free to use and includes Domain Rating (DR) and traffic info so you can pick the right spot to get the most eyes on your launch. https://bit.ly/40dZ3Ka October 20, 2024 at 06:50AM

Show HN: I created a web app to encrypt/decrypt messages using Web Crypto API https://bit.ly/4dP5DKd

Show HN: I created a web app to encrypt/decrypt messages using Web Crypto API https://bit.ly/4dRpCYP October 19, 2024 at 11:42PM

Show HN: KyberLock – Crystals-Kyber Post-Quantum Cryptography in the Browser https://bit.ly/3NxN5DA

Show HN: KyberLock – Crystals-Kyber Post-Quantum Cryptography in the Browser https://bit.ly/3Nxfwld October 18, 2024 at 11:09PM

Show HN: Repaint – A visual editor for HTML and CSS https://bit.ly/4h7uV9j

Show HN: Repaint – A visual editor for HTML and CSS We’re Izak and Ben the founders of Repaint (YC S23). Repaint is an editor, like Figma, that natively exports code. We launched Repaint on HN a little over a month ago. At that point, it was a website builder. There was a lot of feedback that Repaint should directly export code. We took this feedback and decided to change the editor. We completely cut website hosting and decided to focus solely on code export. We’ve added templates for login forms and dashboards to help you get started. The editor experience is similar to Figma. It is a WebGL canvas that has panning and zooming. The internal data-structure is a DOM, like HTML. The style attributes on each node map directly to CSS. Exporting the styles has no translation problems. At Repaint, we spend a lot of time translating designs to code. We’re excited to build something that will help improve our own workflow. We’re hoping to talk to anyone who has issues translating designs to code. If this is something that would help you, please to reach out to izak@repaint.com. Main Website: https://bit.ly/3Xj9xFg Contact: izak@repaint.com https://bit.ly/4eNezRT October 18, 2024 at 06:18PM

Show HN: I built a tool that helps people contact you without spam https://bit.ly/4he69o0

Show HN: I built a tool that helps people contact you without spam https://bit.ly/4h8Ctc3 October 19, 2024 at 12:46AM

Show HN: I wrote an autodiff in C++ and implemented LeNet with it https://bit.ly/3UfbUIm

Show HN: I wrote an autodiff in C++ and implemented LeNet with it https://bit.ly/3Ua4eqP October 18, 2024 at 01:52AM