🛠️ All DevTools

[Monitoring/Observability] Monitor your databases like never before. Logstag - AI-powered database monitoring platform. Monitor PostgreSQL, SQL Server, Oracle, MongoDB with real-time insights, automated alerts, and performance optimization. Get started in 5 minutes.

[Other] Count syllables, words, and characters with precision Free syllable counter tool for writers, students, and educators. Count syllables in any text with 99% accuracy.Features word counting, character analysis, and educational guides for poetry writing. No registration required, mobile-friendly, and completely free

[Other] Show HN: FFTN, faster than FFTW in 700 lines of C I am playing around with using arrays of arbitrary dimension as framework for designing FFT implementations, as opposed to the more classical approach of tensor products and butterflies (too complicated in my opinion).<p>It turns out, that with a modern compiler, you do not need much complexity to make a really fast implementation. This implementation is for powers of 2, and optimized for arrays that do not fit in cache. I do think it would be better to use a higher-level language to implement other cases (e.g. n = 2^a * 3^b * 5^c, multiple small FFTs, higher-dimensional), so I am currently working on getting the SaC-compiler to generate this code.

[Other] Show HN: I made a calculator that works over disjoint sets of intervals I&#x27;ve been studying interval arithmetic for the past few weeks and it&#x27;s a really interesting field because while there is a ton of super interesting research published over the past decades, it has never really gotten the recognition that it deserves, IMO.<p>One reason for this is that standard interval arithmetic has really poor handling of division by intervals containing zero. If you compute 1 &#x2F; [-1, 2] in regular interval arithmetic, you get either [-∞, +∞], or you have to say that the operation is undefined. Both solutions are virtually useless. The real answer of course is [-∞, -1] U [0.5, +∞]: i.e. a union of two disjoint intervals.<p>This is useful because you can confidently exclude a non empty set of the real numbers ([-1, 0.5]) from the set of possible values that you can get by dividing 1 by a number between -1 and 2.<p>But this definition of interval division yields a value that is not an interval. This is a problem if you want to define a closed arithmetic system, where you can build and evaluate arbitrary expression over interval values.<p>(This behavior extends to any non continuous function like tan() for example, which is implemented in my project - not without difficulties!)<p>Well the obvious solution is to define your arithmetic over disjoint unions of intervals. This is the subject of a 2017 paper called &quot;Interval Unions&quot; by by Schichl, H., Domes, F., Montanher, T. and Kofler, K..<p>This open-source project I made implements interval union arithmetic in TypeScript in the form of a simple interactive calculator, so you can try it out for yourself! The underlying TypeScript library is dependency free and implements interval union arithmetic over IEEE 754 double precision floats (JS native number type) with outward rounding. This guarantees accuracy of interval results in the presence of rounding issue inherent to floating point.

[Other] Show HN: Local Browser AI Using the new Prompt API to build a free open source privacy-first chat extension that runs on Chrome or Edge on Linux, Mac, Windows and ChromeOS

[DevOps] Next Generation Server Toolkit. Create web servers with everything you need and deploy them wherever you prefer.

[Other] Plan-first AI coding for real codebases Traycer helps devs plan-first, code-faster with spec‑driven development. It breaks down high-level intents into structured plans, hands off to your favorite AI agent, then verifies changes so your large codebase stays solid.

[API/SDK] API & components for comments, feeds, notifications & more Re-launching as fully open-source under Apache 2.0, with an improved state-management architecture, and new components, such as Threaded Comments - advanced comment section featuring Reddit-style threaded discussions. Quality, speed & built-in moderation.

[IDE/Editor] Visual Page Builder with real code Build and design websites visually — create blocks, drag components, and assemble full pages in seconds. Export clean React/JSX code or deploy instantly right from the editor. Powered by MistUI — fast, flexible, and developer-friendly.

[Other] Personalized Next.js boilerplate in 1 min Generate your next.js boilerplate in 1 min - Describe it - Pick the pages to include (our AI will generate the skeleton for you) - Choose your integrations (payments, database, auth, emails) BOOM! Your Next.js boilerplate is ready for download

[Other] A native desktop client for your SaaS (Public Preview) Deskofy is a CLI-powered framework and toolkit that transforms your SaaS into a native desktop app. From build to release, it handles Electron setup, system integrations, and packaging.

[Other] Prompt To Product GenZai is the ultimate AI-powered development platform for Gen Z developers. Transform your ideas into production-ready websites with just a prompt. Experience vibe coding with instant code generation, live preview, and one-click deployment.

[CLI Tool] Manage App Store Connect the Smart, Automated Way A powerful CLI tool for managing apps on App Store Connect. Manage in-app purchases, subscriptions, pricing, and more with JSON-based configuration. Transform hours of manual work into minutes of automation.

[Other] From idea to architecture — powered by AI. ArchtSoft is an AI-powered platform that helps you generate, visualize, and optimize software architecture. Describe your system, and it creates best-practice designs, suggests tech stacks, and estimates cloud costs — all in minutes.

[Other] Show HN: Run PyTorch locally with a remote GPU backend I integrated a remote GPU execution backend into PyTorch through the same system that custom hardware accelerators get integrated into PyTorch. You can create a remote machine and obtain its CUDA device whenever you want to create or move tensors onto the remote GPU.<p><pre><code> machine = mycelya_torch.RemoteMachine(&quot;modal&quot;, &quot;A100&quot;) cuda_device = machine.device(&quot;cuda&quot;) x = torch.randn(1000, 1000, device=cuda_device) y = torch.randn(1000, 1000).to(cuda_device) </code></pre> I made it reasonably performant by having most operations dispatch asynchronously whenever possible. For cases where slow performance is unavoidable such as uploading many GB of weights onto the GPU, I added a decorator that can be applied to functions to turn it into a remotely executed function. For the most part, the function should behave the same with or without the decorator; the main difference is whether the function code is executed locally or remotely.<p><pre><code> import mycelya_torch from transformers import AutoModelForCausalLM, AutoTokenizer @mycelya_torch.remote def load_model(model_name: str): tokenizer = AutoTokenizer.from_pretrained(model_name) model = AutoModelForCausalLM.from_pretrained( model_name, torch_dtype=&quot;auto&quot;, device_map=&quot;auto&quot; ) return model, tokenizer </code></pre> You can only use it with Modal as the cloud provider right now, and it&#x27;s free to use with their free monthly credits. I appreciate any feedback and bug reports :)

[Other] Show HN: Hyprvoice – Voice-Powered Typing for Wayland/Hyprland (No X11 Hacks) I built Hyprvoice, a small tool that lets you type with your voice on Wayland — no X11, no kludgy bridges. Press a key, talk, and your words appear wherever your cursor is.<p>It’s written in Go, uses PipeWire for audio, and talks directly to the compositor. The workflow is simple:<p>press key → start recording<p>press again → stop and inject text<p>Notifications show recording&#x2F;transcribing states, and it works with multiple backends — currently OpenAI Whisper, with whisper.cpp (local&#x2F;offline) in progress.<p>Everything runs through a lightweight daemon with IPC over a unix socket. Text injection uses wl-clipboard + wtype with clipboard restore fallback.<p>Install (Arch&#x2F;AUR):<p>yay -S hyprvoice-bin systemctl --user enable --now hyprvoice.service<p>Then add something like this to Hyprland:<p>bind = SUPER, R, exec, hyprvoice toggle<p>Repo: <a href="https:&#x2F;&#x2F;github.com&#x2F;leonardotrapani&#x2F;hyprvoice" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;leonardotrapani&#x2F;hyprvoice</a><p>It’s beta but fully usable. I’d love feedback, especially from people running Wayland full-time or maintaining compositors.

[Other] Show HN: AI toy I worked on is in stores Alt link: <a href="https:&#x2F;&#x2F;mrchristmas.com&#x2F;products&#x2F;santas-magical-telephone" rel="nofollow">https:&#x2F;&#x2F;mrchristmas.com&#x2F;products&#x2F;santas-magical-telephone</a><p>Video demo: <a href="https:&#x2F;&#x2F;www.youtube.com&#x2F;watch?v=0z7QJxZWFQg" rel="nofollow">https:&#x2F;&#x2F;www.youtube.com&#x2F;watch?v=0z7QJxZWFQg</a><p>The first time I talked with AI santa and it responded with a joke I was HOOKED. The fun&#x2F;nonsense doesn&#x27;t click until you try it yourself. What&#x27;s even more exciting is you can build it yourself:<p>libpeer: <a href="https:&#x2F;&#x2F;github.com&#x2F;sepfy&#x2F;libpeer" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;sepfy&#x2F;libpeer</a><p>pion: <a href="https:&#x2F;&#x2F;github.com&#x2F;pion&#x2F;webrtc" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;pion&#x2F;webrtc</a><p>Then go do all your fun logic in your Pion server. Connect to any Voice AI provider, or roll your own via Open Source. Anything is possible.<p>If you have questions or hit any roadblocks I would love to help you. I have lots of hardware snippets on my GitHub: <a href="https:&#x2F;&#x2F;github.com&#x2F;sean-der" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;sean-der</a>.

[Other] 🤗 Diffusers: State-of-the-art diffusion models for image, video, and audio generation in PyTorch.

[Build/Deploy] Incredibly fast JavaScript runtime, bundler, test runner, and package manager – all in one

[Other] Agentic AI Framework for Java Developers