RPAlert

What it does

Monitor real user performance in React apps. Get Discord alerts when things degrade. ⚡ How it works: 1. Install the SDK (<5KB, one line) 2. Set LCP/FCP/CLS thresholds per app 3. Get Discord alerts within 60 seconds 🔥 Features: - Real User Monitoring from actual browsers - Instant alerts for performance regressions - Per-app thresholds & trend history - Zero infrastructure 💰 Free (1 app) / Pro $29.99/mo (10 apps) / Max $49/mo (100 apps) Built for React devs who don't need Datadog.

• 
  EAS Observe6d ago · expo.dev · ▲140

  Performance monitoring built for Expo and React Native

• TS
  The simplest React state manager now at stable release2021 · simpler-state.js.org · ▲96
• 
  SimplyDebug2022 · ▲85

  Free 1:1 live chat help for react developers

• FR
  Frigade - React SDK for building quality onboarding & activation flows2024 · frigade.com · ▲60

  Hey HN! Christian here, cofounder and CTO of Frigade (https:&#x2F;&#x2F;www.frigade.com). Our tool helps product and engineering teams quickly build in-app experiences like getting started checklists, product tours, account upsells, and nps surveys. Basically all the little things that can help boost your product's activation and retention rates, but that you don't really want to spend the time building from scratch. We built React UI components such as , , and and combined them with a web app that you can use to control user targeting, content management, sequencing, and more. These…

• RR
  React-RPM – Chrome DevTool for Real-Time Performance Metrics2017 · chrome.google.com · ▲14
• WI
  What I've learned creating a React Native performance monitor2020 · bullet-train.io · ▲12

• 
  Dograh▲592

  The open source VAPI alternative

  Dev tools · 25d ago · dograh.com

• 
  Meridian▲530

  Don't let your work go unnoticed. Get promoted!

  Dev tools · 20d ago · meridiona.com

• 
  x1▲516

  Lovable for iPhone apps go from idea to App Store

  Dev tools · 11d ago · x1.new

• 
  Computable GPU Index (CGI)▲423

  The first open-source price index for GPU compute

  Dev tools · 10d ago · getcomputable.com

• 
  Open-Source eInk Bike Computer▲406

  OpenTrailPaper is open-source bike computer firmware for the LilyGO T5S3 4.7" E-Paper PRO. It supports offline maps, GPX routes, FIT recording and Bluetooth sensors.

  Dev tools · 2d ago · opentrailpaper.com

• 
  The GTM Co-Founder▲402

  Open-source GTM skills for technical founders

  Dev tools · 29d ago · gtmcofounder.com

• 
  Lightfield▲891

  AI-native CRM that builds itself and does work for you

  AI · Mar 2026 · lightfield.app

• 
  Tobira.ai▲730

  A network where AI agents find deals for their humans

  AI · Mar 2026 · tobira.ai

• 
  Claude Import Memory▲725

  Switch from ChatGPT to Claude with import memory feature

  AI · Mar 2026 · claude.com

• 
  Littlebird▲712

  The AI assistant that already knows your work

  AI · Mar 2026 · littlebird.ai

• 
  Viktor.com▲701

  Your AI Coworker that proactively executes tasks

  AI · Mar 2026 · viktor.com

• 
  Jupid▲664

  File your taxes with Claude Code

  Commerce · Mar 2026 · jupid.com