Open Source Web/API Monitoring Tool

What it does

Our convenient platform allows you to monitor the health of your website effortlessly. The testing process is quick, reliable, and simple. You can receive your results in no time so that you don’t have to wonder about the status of your site!

• 
  OpenStatusOct 2025 · openstatus.dev · ▲434

  Open-source status page and uptime monitoring system

• IM
  I made tool that let's you see everything about any website2024 · v1.web-check.xyz · ▲411

  Yes, it's open source: https://github.com/lissy93/web-check :) Why I'm building this? There are a lot of tools out there for discovering meta and security data relating to a website, IP or server. But currently, there isn't anything that does everything, all in one place and without a paywall/ user sign up. It's still a WIP, and I'm working on a new version, with some more comprehensive checks, so any feedback would be much appreciated :)

• 
  Free Monitoring Suite by WebGazer2024 · webgazer.io · ▲338

  Monitoring for websites, APIs, and cron jobs

• 
  Simple Uptime2024 · simpleuptime.app · ▲203

  Monitor the health of your websites and servers inside Slack

• 
  ApiChecker2019 · ▲104

  Reliable uptime and performance monitoring for your services

• AO
  An open source performance monitoring tool2024 · github.com · ▲135

  Hey HN. We’re Jay and Vadim from Highlight.io (https://highlight.io). We’re building an open source [1] monitoring platform for web applications. Today we’re excited to be sharing a performance tool we’ve been working on, which helps you inspect the latency of code execution from the client to the server. As engineers at past startups, we often had to debug slow queries, poor load times, inconsistent errors, etc... While tools like Jaegar [2] helped us inspect server-side performance, we had no way to tie user events to the traces we were inspecting. In other words, although we had…

• 
  Meridian▲530

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

  Dev tools · 27d ago · meridiona.com

• 
  x1▲516

  Lovable for iPhone apps go from idea to App Store

  Dev tools · 18d ago · x1.new

• 
  Open-Source eInk Bike Computer▲421

  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 · 9d ago · opentrailpaper.com

• 
  Toplify▲365

  Track your App Store ranking worldwide

  Dev tools · 22d ago · toplify.app

• 
  Vendo ▲362

  Let your users build their own features inside your product

  Dev tools · 27d ago · vendo.run

• 
  PR Lens by Coldtea.ai▲347

  See code through a new lens

  Dev tools · 16d ago · prlens.dev

• 
  SavvyCal▲1,132

  Sending your scheduling link shouldn't feel weird.

  Work · 2021 · savvycal.com

• BA
  Beeper – All Your Chats in One App▲962

  Get the most popular messaging services, all in a single app. WhatsApp, Signal, Instagram, Telegram, and more.

  Life & fun · 2021 · beeperhq.com

• IM
  I made an alternative platform for professional profiles▲938

  Life & fun · 2021 · read.cv

• 
  Pages by Headlime▲754

  AI-powered landing page builder (GPT-3 + Tailwind)

  AI · 2021 · headlime.com

• IS
  I shot high-res stitched panoramas in Iceland using a thermal camera▲753

  A computer vision engineer by day and photographer by night, I never take the path most traveled, especially when it comes to imaging technology. Thermal

  Life & fun · 2021 · petapixel.com

• IB
  I built an online interactive course that helps you learn Vim faster▲667

  Learn vim fast by building muscle memory. 2000+ engineers learned vim with our hands on training. Train your fingers, master vim commands!

  Life & fun · 2021 · vim.so