🛠️ All DevTools

[Other] Free customizable countdown timers to your Shopify store GSC Countdown Timer helps Shopify merchants create urgency and boost conversions with flexible countdowns. Add fixed-date, evergreen, or recurring timers to any page or section. Clean design, fast setup, and full Shopify theme integration — no coding required.

[Other] Movycat – A terminal movie player written in Zig I saw Mario (the author) at Zigtoberfest in Munich last Saturday where he gave a presentation on a whole stack of related projects implemented in Zig: A graphics library for the terminal (movy), movycat (video playback in the terminal), zig64 &amp; zigreSID (emulators for Commodore 64&#x27;s CPU and sound chip), and a reimplementation of a C64 video game (which I don&#x27;t think he has published on GitHub yet). Anyway, I found his work incredible and thought he deserved some attention.<p>Update: Since writing this, Mario has uploaded the game, too: <a href="https:&#x2F;&#x2F;github.com&#x2F;M64GitHub&#x2F;1st-shot" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;M64GitHub&#x2F;1st-shot</a> . I misunderstood, though: It doesn&#x27;t seem to be a port of an actual C64 game.

[Other] Cisco opensourced MCP-Scanner for finding vulnerabilties in MCP server

[CLI Tool] Show HN: Git Auto Commit (GAC) – LLM-powered Git commit command line tool GAC is a tool I built to help users spend less time summing up what was done and more time building. It uses LLMs to generate contextual git commit messages from your code changes. And it can be a drop-in replacement for `git commit -m &quot;...&quot;`.<p>Example:<p>```<p>feat(auth): add OAuth2 integration with GitHub and Google<p>- Implement OAuth2 authentication flow<p>- Add provider configuration for GitHub and Google<p>- Create callback handler for token exchange<p>- Update login UI with social auth buttons<p>```<p>Don&#x27;t like it? Reroll with &#x27;r&#x27;, or type `r &quot;focus on xyz&quot;` and it rerolls the commit with your feedback!<p>You can try it out with uvx (no install):<p>```<p>uvx gac init # config wizard<p>uvx gac<p>```<p><i>Note: `gac init` creates a .gac.env file in your home directory with your chosen provider, model, and API key.</i><p>*Tech details:*<p>*14 providers* - Supports local (Ollama &amp; LM Studio) and cloud (OpenAI, Anthropic, Gemini, OpenRouter, Groq, Cerebras, Chutes, Fireworks, StreamLake, Synthetic, Together AI, &amp; Z.ai (including their extremely cheap coding plans!)).<p>*Three verbosity modes* - Standard with bullets (default), one-liners (`-o`), or verbose (`-v`) with detailed Motivation&#x2F;Architecture&#x2F;Impact sections.<p>*Secret detection* - Scans for API keys, tokens, and credentials before committing. Has caught my API keys on a new project when I hadn&#x27;t yet gitignored .env.<p>*Flags* - Automate common workflows:<p>- `gac -h &quot;bug fix&quot;` - pass hints to guide intent<p>- `gac -yo` - auto-accept the commit message in one-liner mode<p>- `gac -ayp` - stage all files, auto-accept the commit message, and push (yolo mode)<p>Would love to hear your feedback! Give it a try and let me know what you think! &lt;3<p>GitHub: <a href="https:&#x2F;&#x2F;github.com&#x2F;cellwebb&#x2F;gac" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;cellwebb&#x2F;gac</a>

[Other] Show HN: JSON Query I&#x27;m working on a tool that will probably involve querying JSON documents and I&#x27;m asking myself how to expose that functionality to my users.<p>I like the power of `jq` and the fact that LLMs are proficient at it, but I find it right out impossible to come up with the right `jq` incantations myself. Has anyone here been in a similar situation? Which tool &#x2F; language did you end up exposing to your users?

[IDE/Editor] Show HN: Erdos – open-source, AI data science IDE Hey HN! We’re Jorge and Will from Lotas (<a href="https:&#x2F;&#x2F;www.lotas.ai&#x2F;">https:&#x2F;&#x2F;www.lotas.ai&#x2F;</a>), and we’ve built Erdos, a secure AI-powered data science IDE that’s fully open source (<a href="https:&#x2F;&#x2F;www.lotas.ai&#x2F;erdos">https:&#x2F;&#x2F;www.lotas.ai&#x2F;erdos</a>).<p>A few months ago, we shared Rao, an AI coding assistant for RStudio (<a href="https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=44638510">https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=44638510</a>). We built Rao to bring the Cursor-like experience to RStudio users. Now we want to take the next step and deliver a tool for the entire data science community that handles Python, R, SQL, and Julia workflows.<p>Erdos is a fork of VS Code designed for data science. It includes:<p>- An AI that can search, read, and write across all file types for Python, R, SQL, and Julia. Also, for Jupyter notebooks, we’ve optimized a jupytext system to allow the AI to make faster edits.<p>- Built-in Python, R, and Julia consoles accessible to both the user and AI<p>- Plot pane that tracks and organizes plots by file and time<p>- Database pane for connecting to and manipulating SQL or FTP data sources<p>- Environment pane for viewing variables, packages, and environments<p>- Help pane for Python, R, and Julia documentation<p>- Remote development via SSH or containers<p>- AI assistant available through a single-click sign-in to our zero data retention backend, bring your own key, or a local model<p>- Open source AGPLv3 license<p>We built Erdos because data scientists are often second-class citizens in modern IDEs. Tools like VS Code, Cursor, and Claude Code are made for software developers, not for people working across Jupyter notebooks, scripts, and SQL. We wanted an IDE that feels native to data scientists, while offering the same AI productivity boosts.<p>You can try Erdos at <a href="https:&#x2F;&#x2F;www.lotas.ai&#x2F;erdos">https:&#x2F;&#x2F;www.lotas.ai&#x2F;erdos</a>, check out our source code on our GitHub (<a href="https:&#x2F;&#x2F;github.com&#x2F;lotas-ai&#x2F;erdos" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;lotas-ai&#x2F;erdos</a>), and let us know what features would make it more useful for your work. We’d love your feedback below!

[Other] Show HN: spoilerjs – Reddit-style spoilers with particle animations Hello HN!<p>I just published my first npm library as a small way to give back to the open source community.<p>I built `spoilerjs`, a lightweight web component that lets you hide text with an animated spoiler effect. Think Reddit spoilers, but with more flair! It works with plain HTML, React, Vue, or Svelte, and you can customize attributes like particle density, velocity, and scale. The effect is totally inspired by the Telegram app!<p>Demo: <a href="https:&#x2F;&#x2F;spoilerjs.sh4jid.me" rel="nofollow">https:&#x2F;&#x2F;spoilerjs.sh4jid.me</a> NPM: <a href="https:&#x2F;&#x2F;www.npmjs.com&#x2F;package&#x2F;spoilerjs" rel="nofollow">https:&#x2F;&#x2F;www.npmjs.com&#x2F;package&#x2F;spoilerjs</a> GitHub: <a href="https:&#x2F;&#x2F;github.com&#x2F;shajidhasan&#x2F;spoilerjs" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;shajidhasan&#x2F;spoilerjs</a><p>I&#x27;m sure there are probably some bugs and rough edges, but I&#x27;d love to hear your feedback!<p>Thanks!

[CLI Tool] Show HN: Whatdidido – CLI to summarize your work from Jira/Linear I built this after spending days every year manually searching through Jira tickets to remember what I&#x27;d accomplished for performance reviews.<p>whatdidido is a CLI tool that:<p>- Pulls tickets from Jira or Linear for a date range<p>- Uses an LLM to create short summaries of each ticket<p>- Generates an overall summary to help you build your self-evaluation<p>The tool doesn&#x27;t write your review for you—crafting thoughtful, contextual feedback still requires human judgment. It just eliminates the busywork of finding and organizing what you worked on.<p>Key details:<p>- MIT licensed, open source<p>- No data storage—everything stays local<p>- Requires OpenAI or OpenRouter API key<p>- Works with Jira and Linear (more integrations welcome&#x2F;coming soon)<p>GitHub: <a href="https:&#x2F;&#x2F;github.com&#x2F;oliviersm199&#x2F;whatdidido" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;oliviersm199&#x2F;whatdidido</a><p>I&#x27;m releasing it now because I think others might find it useful during review season.<p>Would love feedback on the approach and what other integrations would be helpful. Happy to answer questions about how it works.

[API/SDK] Show HN: nblm - Rust CLI/Python SDK for NotebookLM Enterprise automation I built nblm, a Rust-based toolset to automate Google’s NotebookLM Enterprise API reliably. It aims to replace brittle curl snippets with a stable interface you can use in cron&#x2F;CI or agentic systems.<p>* Python SDK (type-safe): IDE auto-complete, fewer JSON key typos, fits complex workflows.<p>* Standalone CLI: single fast binary for scripts and pipelines.<p>* Handles auth, batching, retries; you focus on logic. Rust core is fast and memory-safe.<p>* Enterprise API only (consumer NotebookLM isn’t supported).<p>Repo: <a href="https:&#x2F;&#x2F;github.com&#x2F;K-dash&#x2F;nblm-rs" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;K-dash&#x2F;nblm-rs</a><p>Feedback is welcome—I&#x27;m especially interested in thoughts on the Python SDK’s design for building automated&#x2F;agentic workflows. Thanks!

[API/SDK] API, CLI, and Web App for analyzing and finding a person's profile in 1000 social media \ websites

[Other] SysNova Toolkit: advanced diagnostics for Windows & macOS — Ethical toolkit for Windows/macOS optimization – modular, lightweight, open source. - MentalistOps/MentalistOps SysNova Toolkit is an ethical and modular suite for advanced system optimization and diagnostics across Windows and macOS platforms.

[Other] Release verseinserter v1.0.0 · kasimlyee/verse Automated Scripture Insertion. Contribute to kasimlyee/verse-inserter development by creating an account on GitHub.

[API/SDK] Where developers can execute code quickly and easily Execute code safely with container-native isolation. Execly is a code execution API that runs snippets inside short-lived, language-specific containers.

[Other] Build & test production-safe prompts (GPT, Claude, Gemini) System for building, testing, and improving AI prompts - securely, scientifically, and at scale. Generate requirements, and implement specialized AI suggestions to enhance your prompt. Works with GPT-5, Gemini-2.5-pro, Claude-4.7-sonnet and many others.

[Database] One Engine. Many Database . Real-Time-Replication Helyx is a lightning-fast, cloud-agnostic database replication fabric supporting Oracle, PostgreSQL, MySQL & More. Real-time CDC, zero-downtime schema evolution, CLI simplicity, auto-recovery, and production-grade reliability—replication made effortless

[Other] Touch typing practice specially designed for coders Typir - Master touch typing with progressive alphabet training

[IDE/Editor] Code Python & R anywhere — no installs, no nonsense. bIDE is a free, browser IDE for Python & R that runs entirely in your browser — offline, private, and mobile-friendly. Built by a broke student using AI tools to make coding accessible anywhere.

[Monitoring/Observability] All-in-one uptime and performance monitoring platform PingView helps you monitor websites, APIs, and services with real-time alerts, performance audits, and security scans. Get uptime, SSL, and Lighthouse + Observatory insights

[Monitoring/Observability] Get instant alerts when your URLs or APIs go down. ✅ Monitor websites, APIs, and endpoints easily ⚡ Get instant email or webhook alerts on downtime or changes 📊 Track response times & uptime history 🤖 Self-host or use our cloud version Monitor your websites 24/7 real-time Free plan available.

[Other] Your accessibility copilot. Vertex A11y is a browser extension that scans websites for ADA/WCAG compliance in real time and highlights elements that are not compliant. It scores web pages based on the guidelines and suggests quick fixes.