Show HN: I accidentally built a startup idea validation tool https://ift.tt/DUfK8aN

Show HN: I accidentally built a startup idea validation tool I was working on validating some of my own project ideas. While trying to find how to validate my idea, I realized the process itself could be turned into a tool. A few late nights later, I had something that takes any startup idea, fetches discussions, summarizes sentiment, and gives a quick “validation score.” It’s very rough, but it works, and it’s already making me rethink a few of my own ideas. It's still a work in progress. I don't actually know what I'm doing, but I know it's worth it. Honest feedback welcomed! Live demo here: https://validationly.com/ https://validationly.com/ August 13, 2025 at 01:59AM

Show HN: Minimal Claude-Powered Bookmark Manager https://ift.tt/5bGlYvS

Show HN: Minimal Claude-Powered Bookmark Manager https://tryeyeball.com/ August 12, 2025 at 11:34PM

Show HN: I built LMArena for Motion Graphics https://ift.tt/Hseulwa

Show HN: I built LMArena for Motion Graphics A motion-graphic comparison website in the vein of LMArena. The videos are rendered via Remotion. We hope that AI will be used in interesting ways to help with video production, so we wanted to give some of the models available today a shot at some basic graphics. https://ift.tt/PrykUBM August 12, 2025 at 11:04PM

Show HN: ToDiagram AI – From text to diagram, fast and easy https://ift.tt/4uF6snr

Show HN: ToDiagram AI – From text to diagram, fast and easy I’ve been working on creating diagrams from JSON, YAML and similar formats for about three years. Over time it has grown into a general-purpose diagramming tool. With the recent addition of the MCP Server and ToDiagram Chat, I’m optimistic about where it’s headed. You can use your own OpenAI key, stored locally, without needing to sign up and generate diagrams by using natural language. https://ift.tt/uTlI1yD August 12, 2025 at 01:22AM

Show HN: pywebview 6 is out https://ift.tt/kmo2pFr

Show HN: pywebview 6 is out I am happy to announce the next major version of pywebview, a lightweight Python framework for building modern desktop applications with web technologies. The new version introduces powerful state management, network event handling, and significant improvements to Android support. See https://ift.tt/euFJIA8 for details. https://ift.tt/euFJIA8 August 12, 2025 at 12:07AM

Show HN: Snape, a Minimal Snippet Manager Built in Go https://ift.tt/saUM5Wk

Show HN: Snape, a Minimal Snippet Manager Built in Go Plain text storage for easy syncing and versioning. Integrates with your existing workflow, not the other way around https://ift.tt/duXfr67 August 11, 2025 at 11:19PM

Show HN: ServerBuddy – GUI SSH client for managing Linux servers from macOS https://ift.tt/Z7SLuFQ

Show HN: ServerBuddy – GUI SSH client for managing Linux servers from macOS Hi HN, I've built an app for macOS that allows performing common SSH operations on Linux servers using a native GUI. The problem: Managing multiple Linux servers usually means juggling terminal windows and copy-pasting snippets/scripts. After dealing with tens of production/staging VPSes at previous jobs, I realized there had to be a better way for common operations I did on a daily basis than my collection of bash snippets. Features: - Quickly switch between different servers. Tag servers with arbitrary key values for easy search. - Real-time dashboard with CPU/memory graphs, disk usage, and uptime. - Table based interface for processes (sortable/filterable), Docker containers, systemd services, network ports, and system logs etc. - Built-in file browser. - Full-featured terminal when you need to drop to the command line. You can check out the screenshots at https://ift.tt/mgQKGkw for a quick overview of the features supported. All the above are done through SSH, there are no agents/scripts to install on your servers. From using the app for a few weeks(admittedly a short duration), I can say I much prefer the ServerBuddy based workflow to my previous workflows. Pricing: Free forever for one server, $59 one-time for unlimited servers (includes 1 year of updates). If you're a developer or sysadmin managing Linux servers from Mac, please do try out the app. I'd love your feedback regarding additional features/workflows etc. Thank you! https://serverbuddy.app August 11, 2025 at 11:19PM

Show HN: Reactive: A React Book for the Reluctant – a book written by Claude https://ift.tt/FqZYMG9

Show HN: Reactive: A React Book for the Reluctant – a book written by Claude https://ift.tt/BmnWJYd August 11, 2025 at 06:14AM

Show HN: A Sinclair ZX81 retro web assembler+simulator https://ift.tt/WL15com

Show HN: A Sinclair ZX81 retro web assembler+simulator Lots of fun to do. I would have not taken the time without the speedup provided by Claude. https://andyrosa.github.io/Sinclaude/simulator.html August 11, 2025 at 06:14AM

Show HN: I analyzed why my post got 0 votes and built this https://ift.tt/s8XQrgl

Show HN: I analyzed why my post got 0 votes and built this Maybe you've had this experience too: You build something you're proud of, post it on HN with your low-karma account, and... crickets. Zero votes, zero comments. That's what happened to me last Monday. I posted my coding tool (XaresAICoder - an open-source browser IDE) that I'd built with AI assistance. In my mind it was revolutionary. On HN? Completely ignored. Then I wondered: How many other potentially great projects suffer the same fate? What "hidden gems" are we missing because they come from low-karma accounts? So I built hn-gems (with help from Claude and my own XaresAICoder). It works in two stages: Continuous scanning: Analyzes all new HN posts from accounts with <100 karma, scoring them for technical merit, originality, and problem-solving value AI curation: Every 12 hours, an LLM deep-dives into the top 10 candidates, checking GitHub repos, documentation quality, and actual utility The result is what you see at the link - a curated list of overlooked quality posts that deserve more attention. The interesting part: I barely wrote any criteria. I just told Claude "open source good, pure commercial bad, working demos good" and let it figure out the scoring. The AI assessment varies slightly each run, which actually makes it more interesting. GitHub: https://github.com/DG1001/hn-gems Is this useful? Do you have ideas how to improve this tool if necessary? (And yes, my XaresAICoder that got 0 votes? The AI thinks it's actually pretty good. I'll take that as a win.) https://hn-gems.sensem.de/ August 11, 2025 at 01:05AM

Show HN: Bolt – A super-fast, statically-typed scripting language written in C https://ift.tt/neKrFMp

Show HN: Bolt – A super-fast, statically-typed scripting language written in C I've built many interpreters over the years, and Bolt represents my attempt at building the scripting language I always wanted. This is the first public release, 0.1.0! I've felt like the embedded scene has been moving towards safety and typing over years, with things like Python type hints, the explosive popularity of typescript, and even typing in Luau, which powers one of the largest scripted evironments in the world. Bolt attempts to harness this directly in the lagnauge rather than as a preprocessing step, and reap benefits in terms of both safety and performance. I intend to be publishing toys and examples of applications embedding Bolt over the coming few weeks, but be sure to check out the examples and the programming guide in the repo if you're interested! https://ift.tt/BLlmkyK August 10, 2025 at 11:23PM

Show HN: AI Coloring Pages Generator https://ift.tt/kJwMbx8

Show HN: AI Coloring Pages Generator Hey Ycombinator News community! I'm excited to share AI Coloring Pages Generator with you all! As a parent myself, I noticed how hard it was to find fresh, engaging coloring pages that my kids actually wanted to color. So I built this AI-powered tool that lets anyone create custom coloring pages in seconds - just describe what you want and watch the magic happen! Whether it's "unicorn princess," "summer theme," or "cute kittens," the AI generates beautiful, printable coloring pages that are perfect for kids and adults alike. The best part? It's completely free to use! I've already seen families, teachers, and even therapists using it to create personalized activities. There's something special about seeing a child's face light up when they get to color exactly what they imagined. Would love to hear what you think and what kind of coloring pages you'd create! https://ift.tt/XTcljMs August 10, 2025 at 01:04PM

Show HN: I made a Ruby on Rails-like framework in PHP (Still in progress) https://ift.tt/8w5lvR6

Show HN: I made a Ruby on Rails-like framework in PHP (Still in progress) Play with it and let me know what you think of the architecture & how we can improve it with PHP native functions + speed. https://ift.tt/jz5C0A6 August 9, 2025 at 06:35PM

Show HN: Runtime – skills-based browser automation that uses fewer tokens https://ift.tt/dyIWiq6

Show HN: Runtime – skills-based browser automation that uses fewer tokens Hi HN, I’m Bayang. I’m launching Runtime — a desktop tool that automates your existing browser using small, reusable skills instead of big, fragile prompts. Links - README: https://ift.tt/RtxBga6 - Skills guide: https://ift.tt/BA2dSr9 Why did I build it? I was using browser automation for my own work, but it got slow and expensive because it pushed huge chunks of a page to the model. I also saw agent systems like browser-use that try to stream the live DOM/processed and “guess” the next click. It looked cool, but it felt heavy and flaky. I asked a few friends what they really wanted to have a browser that does some of their jobs, like repetitive tasks. All three said: “I want to teach my browser or just explain to it how to do my tasks.” Also: “Please don’t make me switch browsers—I already have my extensions, theme, and setup.” That’s where Runtime came from: keep your browser, keep control, make automation predictable Runtime takes a task in chat (I’m open to challenging the User experience of conversing with runtime), then runs a short plan made of skills. A skill is a set of functions: it has inputs and an expected output. Examples: “search a site,” “open a result,” “extract product fields,” “click a button,” “submit a form.” Because plans use skills (not whole pages), prompts stay tiny, process stays deterministic and fast. What’s different - Uses your browser (Chrome/Edge, soon Brave). No new browser to install. - Deterministic by design. Skills are explicit and typed; runs are auditable. - Low token use. We pass compact actions, not the full DOM. And most importantly, we don’t take screenshots at all. We believe screenshots are useless if we use selectors to navigate. - Human-in-the-loop. You can watch the steps and stop/retry anytime. Who it's for? People who do research/ops on the web: pull structured info, file forms, move data between tools, or run repeatable flows without writing a full RPA script or without using any API. It’s just “runtime run at runtime” Try this first (5–10 minutes) 1. Clone the repo and follow the quickstart in the README. 2. Run a sample flow: search → open → extract fields. 3. Read `SKILLS.md`, then make one tiny skill for a site you use daily. What’s not perfect yet Sites change. Skills also change, but we will post about addressing this issue. I’d love to hear where it breaks. Feedback I’m asking for - Is the skills format clear? Being declarative, does that help? - Where does the planner over-/under-specify steps? - Which sites should we ship skills for first? Happy to answer everything in the comments, and would love a teardown. Thanks! Bayang https://ift.tt/ikHPZwt August 9, 2025 at 11:15PM

Show HN: I made a safe anonymous message app https://ift.tt/39Mx6Zu

Show HN: I made a safe anonymous message app Subrosa is an anonymous message-sharing platform where anyone can visit your unique link and write whatever’s on their mind: secret confessions, honest thoughts, or wild opinions, completely anonymously. You get to read what people say about you on your personal dashboard. What sets this apart is the AI-powered moderation that filters out hate speech, abuse, and spam before it ever reaches you, creating a safe space for honesty without toxicity. This is an alpha release with a basic UI as we focus on testing core functionality. Try it out, share your link, and experience raw, honest, and clean anonymous messaging like never before. To test the moderation you can send messages to me at https://subrosa.vercel.app/martianmanhunter Relevant links: https://subrosa.vercel.app/ : Homepage https://subrosa.vercel.app/signup https://subrosa.vercel.app/login https://subrosa.vercel.app/dashboard : Where you can see the messages you received https://subrosa.vercel.app/[username] : Your personal link that you can post on your socials etc. to attract comments. P.S. Please dont share personal or sensitive information. https://subrosa.vercel.app/ August 9, 2025 at 06:50AM

Show HN: Tiered storage and fast SQL for InfluxDB 1.x/2.x https://ift.tt/O2IU6if

Show HN: Tiered storage and fast SQL for InfluxDB 1.x/2.x If you’ve run InfluxDB at scale, you know the pain: Retention policies mean throwing away history, keeping everything means huge hardware & license costs. We built ExyData Historian to fix that. What it does? - Automatically exports old InfluxDB 1.x/2.x data to compressed Parquet in S3 or MinIO - Keep recent data hot in InfluxDB, move the rest to cheap storage - Run fast SQL on archived data via Apache Arrow + DuckDB - Query it all through one interface and / API. No hot/cold boundary for the user Why it matters - 70–80% lower storage costs - Historical queries that are as fast (or faster) than InfluxDB itself - No manual exports, no query rewrites, no downtime Who’s using it right now? InfluxDB Enterprise Customers and Huge instances of OSS, telcos and logistics companies are trying this right now. We help you to reduce your Enterprise licensing cost, cause you are going to shrink your InfluxDB cluster. You keep your existing InfluxDB running, Historian works alongside it, moving history to cheap storage while giving you more analytics power. We’d love feedback from anyone managing large InfluxDB deployments. https://ift.tt/P2cTFey August 9, 2025 at 03:48AM

Show HN: I made FiscalBud to send invoices fast and worldwide in 77 languages https://ift.tt/psUXPTm

Show HN: I made FiscalBud to send invoices fast and worldwide in 77 languages hi! i built an app that takes the pain out of invoicing so you can send them faster and worldwide without a headache. i've always found invoicing to be a waste of time, switching between templates, calculating taxes, tracking different currencies, and keeping files organized. so i made FiscalBud :) the idea from tools like stripe inspired me, but for invoices. it lets you create, customize, and send professional invoices to clients anywhere in the world in just minutes. it supports 8 currencies, 77 languages (you can choose the output data language and ui language separately), and works in 248 countries, so you can bill confidently on a global scale. it comes with smart templates, automatic tax/subtotal/total calculations, localized csv exports, and cloud storage to keep everything organized. (coming soon) you can automate recurring invoices, payment reminders, and follow-ups. it's built to be secure and privacy-focused, with encryption and compliance baked in. you can even send invoices directly via email using your own smtp settings, with automatically signed pdfs. i've got plenty of ideas for making it even better, like deeper automation and more integrations with other tools you already use (including Stripe which is on the roadmap). any feedback is much appreciated! :) https://ift.tt/vhfn0mS August 9, 2025 at 02:56AM

Show HN: Selfhostllm.org – Plan GPU capacity for self-hosting LLMs https://ift.tt/xlZ8FNL

Show HN: Selfhostllm.org – Plan GPU capacity for self-hosting LLMs A simple calculator that estimates how many concurrent requests your GPU can handle for a given LLM, with shareable results. https://ift.tt/kovfDHh August 8, 2025 at 11:19PM

Show HN: A light GPT-5 vs. Claude Code comparison https://ift.tt/uTA8xim

Show HN: A light GPT-5 vs. Claude Code comparison Hi HN! Can’t believe I’ve been here over 12 years and this is my first Show HN. I guess this is two fold, One: I’m doing another startup! Charlie is an agent for TypeScript teams focusing heavily on augmentation. :) Two: Over the last week or so we put GPT-5 (through our Charlie Agent) head-to-head with Claude Code/Opus on 10 real TypeScript issues pulled from active OSS projects. Our Results GPT-5 beat Claude Code on all 10 case-by-case comparisons. Pull requests generated by GPT-5 resolved 29% more issues than o3. PR review quality rose 5% versus o3. Head-to-head case study We measured testability, description, and overall quality across 10 head-to-head PRs. Testability measures how thoroughly a code change is exercised by meaningful, behavior-focused tests. It considers whether tests are present and aligned with the diff, whether they explore edge cases and real-world scenarios, and whether they avoid vacuous, misleading, or implementation-dependent patterns common in code generated by LLMs. Description evaluates how clearly and accurately a pull request’s title and summary convey the purpose, scope, and structure of the code change. It emphasizes technical correctness, relevance to the diff, and clarity for future readers — penalizing vague, verbose, or hallucinated explanations often produced by code-generating agents. Quality assesses the substance and craftsmanship of the code change itself — judging whether it is correct, minimal, idiomatic, and free from hallucinated constructs. It emphasizes clarity, alignment with project norms, and logical integrity, while identifying agent-specific pitfalls like over-engineering, incoherent abstractions, or invented utilities. Testability: Charlie (0.69) vs Claude (0.55) Description: Charlie (0.84) vs Claude (0.90) Overall Quality: Charlie (0.84) vs Claude (0.65) Caveats Single-shot runs; no human feedback loop. Quality score uses a secondary LLM reviewer—subjective but transparent. Def looking for feedback on more evaluations we can do, also please do nit-pick the prompts, ideas, harness design etc etc. Tell us if this bar (CI + types) is the right one, or what you’d track instead. On a personal note: I’ve spent my career working on tools to help creators create, I’m extremely passionate about enabling people to do more easily. I am still somewhat uneasy about Gen AI, however I do believe the future is bright, certainly things are going to change - I would encourage you all to stay optimistic builders. Thanks for taking a look! https://ift.tt/cNDSQ0i August 8, 2025 at 12:26AM

Show HN: My Resume Is a Gameboy https://ift.tt/Pm4Vvzy

Show HN: My Resume Is a Gameboy https://ift.tt/brk2gHe August 7, 2025 at 11:26PM