Show HN: I replaced Markov Chains with Biomechanics to predict word transitions https://ift.tt/PN7CKAS December 9, 2025 at 01:06AM

Show HN: DeChecker – Detect AI-generated text A tiny tool to detect text from ChatGPT/GPT-5/Claude/Gemini/LLaMA. Free and fast: https://dechecker.ai/ https://dechecker.ai December 9, 2025 at 12:40AM

Show HN: Zonformat– 35–60% fewer LLM tokens using zero-overhead notation hey HN! Roni from India — ex-Google Summer of Code(GSoC) @ internet archive, full-stack dev. got frustrated watching json bloat my openai/claude bills by 50%+ on redundant synt…

Show HN: Axo Pass – Unlock SSH/GPG Keys and Secrets with Touch ID on macOS Hi HN! I built an open source macOS app that allows you to unlock your SSH and GPG key passphrases with Touch ID. You can also store secrets and inject them into your dev env…

Show HN: Web app that lets you send email time capsules I had an issue where I would journal stuff, and then never look at what I wrote. So I thought it'll be cool to schedule something that will get sent to you at a later time (like a time caps…

Show HN: Crier – Push notifications via TCP or MQTT (no public IP needed) https://ift.tt/mXKcnI1 December 7, 2025 at 10:50PM

Show HN: I was frustrated of 85% of my technical interviews, I built SharpSkill Hey, My name is Benjamin and as many developers, I was tired to not succeed my technical interviews, for any reasons. I made SharpSkill in order to change that. Real Use…

Show HN: A Markdown document manager in Rust Hi HN, I’m an ex-Amazon engineer. I built Seychl because I was tired of waiting 3 seconds for my notes to load in cloud-based apps. Seychl is a local-first knowledge base designed for speed. UI interactio…

Show HN: AI Paul Graham I built an AI version of Paul Graham, fully powered by the Nia API. * Nia gives coding agents accurate context by indexing entire codebases, documentation, and packages. It fixes hallucinations by letting agents retrieve real…

Show HN: S3 compatible store with 1M IOPS(4K-R,p99~5ms), BYOC in 5min with rust https://ift.tt/I7DPs5F December 6, 2025 at 11:33PM

Show HN: A 2mm micro-bearing ring that spins like a real fidget spinner My motivation was pretty simple: every “spinning ring” I tried felt a bit fake. They don’t actually spin — not like a real bearing. So I wanted to see if I could make one that t…

Show HN: Prophit – The AI Search Engine For Stocks https://ift.tt/MijVw82 December 5, 2025 at 11:59PM

Show HN: Ogblocks – Create Jaw Dropping UIs with Simple Drag and Drop Hello everyone, I’m Karan — officially a Frontend Developer, but honestly, I relate more to being a Design Engineer because crafting beautiful interfaces is what I love most. When…

Show HN: I built a Python library for central bank economic announcement data https://ift.tt/r8NoCg4 December 5, 2025 at 04:49AM

Show HN: Cbor.app – CBOR encoder/decoder with hex visualization Author here: I built this because I wanted to learn about CBOR and how it's build and how it encodes data. I work with it on a almost daily basis, its s binary format that is define…

Show HN: Travel ESIM Comparison https://esimguide.com December 5, 2025 at 01:50AM

Show HN: Who is hiring" search tool with chat / other features Hi HN, There are several tools that help you search through the monthly "Who is Hiring" posts on Hacker News. The primary difference with this one is it includes chat, sem…

Show HN: Walrus – a Kafka alternative written in Rust https://ift.tt/u10mEgl December 1, 2025 at 07:28AM

Show HN: Searchable AI visibility index (15k+ brands, 500 industries) Hey HN, I've been trying to correct for one of the biggest difficulties with moving from SEO -> GEO, which is the lack of public data (in the same way that for SEO we had a…

Show HN: Doubao Seedream 4.5 – next‑gen image creation and editing model Hi HN — we just open‑sourced/released (or “publicly launched”, depending on whether it's open‑source) a new image generation & editing model called Doubao‑Seedream-4.5,…

Show HN: I built alwayswith.us to easily add deceased loved ones into photos Im a software engineer, but I actually fully "vibe coded" this. fully functional, used bolt.new + a little claude code. nano banana pro made it possible. https://…

Show HN: I built a privacy-first UK tax calculator https://ift.tt/fXozVqU December 2, 2025 at 11:32PM

Show HN: I was reintroduced to computers: Raspberry Pi https://ift.tt/nM1J2pZ December 2, 2025 at 01:14AM

Show HN: Webclone.js – A simple tool to clone websites I needed a lightweight way to archive documentation from a website. wget and similar tools failed to clone the site reliably (missing assets, broken links, etc.), so I ended up building a full w…

Show HN: Can you spot AI-generated content? (spoiler: probably not) I built this quiz after realizing how good AI has gotten at mimicking literature, speeches, and images. It's one strike and you're out. It includes AI-generated Shakespeare,…