🛠️ All DevTools

[Other] Show HN: Create interactive diagrams with pop-up content This is a recent addition to Vexlio which I think the HN crowd may find interesting or useful.<p>TL;DR: easy creation of interactive diagrams, meaning diagrams that have mouse click&#x2F;hover hooks that you can use to display pop-up content. The end result can be shared with a no-sign-in-required web link.<p>My thought is that this is useful for system docs, onboarding or user guides, presentations, etc. Anything where there is a high-level view that should remain uncluttered + important metadata or details that still need to be available somewhere.<p>You can try it out without signing up for anything, just launch the app here (<a href="https:&#x2F;&#x2F;app.vexlio.com&#x2F;" rel="nofollow">https:&#x2F;&#x2F;app.vexlio.com&#x2F;</a>), create a shape, select it with the main pointer tool and then click &quot;Add popup&quot; on the context toolbar.<p>I&#x27;d be grateful for any and all feedback!

[Database] Show HN: Timeplus Proton 3.0 – First vectorized streaming SQL engine Two years after open sourcing Proton, we&#x27;re releasing v3.0 which brings enterprise-grade streaming capabilities to the open source version: full connectivity, processing, and routing in a single binary with zero dependencies.<p>Key features:<p>First vectorized streaming SQL engine in modern C++ with JIT compilation<p>High-throughput, low-latency, high-cardinality processing End-to-end streaming: ETL, joins, aggregation, alerts, and tasks<p>Native connectors: Kafka, Redpanda, Pulsar, ClickHouse, Splunk, Elastic, MongoDB, S3, Iceberg<p>Native Python UDF&#x2F;UDAF support to support your AI&#x2F;ML work loads<p>The same performance we&#x27;ve proven in large enterprise deployments is now available in the community edition.<p>Would love feedback from anyone working with streaming data or looking for Flink&#x2F;ksqlDB alternatives.

[Build/Deploy] SourceFS: A 2h+ Android build becomes a 15m task with a virtual filesystem

[DevOps] Build smaller, faster, and more secure desktop and mobile applications with a web frontend.

[Other] From HTML table to embed chart - visualize data in 3 clicks MonChart is a powerful and intuitive Edge extension that transforms any HTML table—whether standard tables or grid-based structures—into interactive, visually compelling embed charts with just a few clicks.

[API/SDK] Type-safe S3/R2 uploads for any framework (tiny ~15KB) Add uploads in minutes with end-to-end TypeScript types. Files go straight from the browser to S3-compatible storage via presigned URLs—your server only signs. Works with Next.js, Remix, SvelteKit, Hono; supports S3, R2, DO Spaces, MinIO, and GCS.

[Other] React's useState but it syncs across clients in real-time. The simplest yet powerful primitive to build and ship real-time features in your web apps. useSharedState is a drop-in replacement for React's useState hook but it syncs the state across clients instantly whenever the state is updated. (btw, it's opensource)

[Other] New documentation for the native browser-first React library We're excited to officially launch the new documentation site for Koval UI, our open-source React component library! Our new documentation site (built with Docusaurus) makes it easier than ever to get started, explore components, and build your next project.

[Other] Web Server Library .NET Core, Simple & Fast SimpleW is a Web server library inNET Core. Designed for Simplicity. Built for Speed. Packed with Power.

[Other] A decade of Django best practices in one template Django Keel is an opinionated, production-ready baseline: 12-factor settings, security defaults, pre-commit + ruff/mypy/pytest, GitHub Actions, Docker/Compose, health/ready endpoints, and starter deploy configs (Render, Fly.io, EC2+Ansible, ECS, K8s).

[Other] Automate Your Bug Bounty Hunting. The sidekick for security researchers who want to find vulnerabilities faster. Trooper is built for bug bounty hunters who want to scale their hunting by automating payloads, collecting callbacks instantly, and freeing you up to focus on the real discoveries.

[API/SDK] Enrich your AI & Apps with structured, real-time search data Serpex.dev offers a REST API/SDKs for real-time, structured Search data, giving LLMs and SaaS apps live search insights without scraping complexities. Great for AI applications seeking current search intelligence and data projects.

[IDE/Editor] Like Overleaf and Notion had a baby MonsterWriter - Don't be bothered by formatting content, moving headings from one page to another, manual creation of bibliographies,.. MonsterWriter provides a distraction free writing environments optimized for scholar writings

[Other] Beautiful docs. Optimized for React and Next.js. Fumadocs is a beautiful documentation framework for developers, flexible, performant, running on your React framework.

[Other] UI Framework tailored for SaaS & Devtools MVP’s DevReady Kit gives you production-ready UI components for modern SaaS apps - free for commercial use. Built with React, Tailwind, and TS for devs and founders building SaaS or Devtools. Copy, customise, and ship polished products fast without a frontend team!.

[Other] One Platform for All Your Client Work Manage meetings and timesheets across multiple clients from one dashboard. Sync Gmail & Outlook calendars, track time per client, and export timesheets easily. Built for developers, freelancers & founders who are tired of constant context switching.

[DevOps] Your AI DevOps partner that works directly from your browser Lumlax is an AI agent that connects to your servers via SSH and automates DevOps tasks through simple, natural language commands.

[Monitoring/Observability] Stay on top of your domains with DNS, RDAP & SSL monitoring. Domainwarden tracks your DNS records, nameservers, SSL certificates, and WHOIS/RDAP statuses. Get notified via email, Slack, Discord, and more when changes occur. Start your 14-day free trial today and see what we have to offer.

[Other] Show HN: Run any GitHub Action locally from your Cron job -- finally!

[Other] Show HN: LunaRoute – a high-performance local proxy for AI coding assistants LunaRoute is a high-performance local proxy for AI coding assistants like Claude Code, OpenAI Codex CLI, and OpenCode. Get complete visibility into every LLM interaction with zero-overhead passthrough, comprehensive session recording, and powerful debugging capabilities.<p>- See Everything Your AI Does - get full logs (JSONL), summary of sessions including tokens used (input&#x2F;output) as well as tools usage and success rates.<p>- Privacy &amp; Compliance Built-In - redact or tokenize any sensitive information (regex based).<p>- Speaks OpenAI and Anthropic dialects so you can route (and translate) when needed between models and providers.<p>- High performance - passthrough is 0.1ms - 0.2ms latency. Logging and summary is off loaded to a secondary thread to allow maximum performance.<p>Feedback is always appreciated as well as stars on the repo :)